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Genus Addisonia Dall, 1882 Type species Addisonia paradoxa Dall, 1882, by original designation., Published as part of Gofas, Serge, Luque, ��ngel A., Oliver, Joan Daniel, Templado, Jos�� & Serrano, Alberto, 2021, The Mollusca of Galicia Bank (NE Atlantic Ocean), pp. 1-114 in European Journal of Taxonomy 785 (1) on page 29, DOI: 10.5852/ejt.2021.785.1605, http://zenodo.org/record/5798418, {"references":["Dall W. H. 1882. On certain limpets and chitons from the deep waters off the eastern coast of the United States. Proceedings of the United States National Museum 4: 400 - 414. https: // doi. org / 10.5479 / si. 00963801.4 - 246.400"]}

Ringicula crassidens Gofas & Luque sp. nov. urn:lsid:zoobank.org:act: 8E4FB886-47AD-479C-9B49-238DD01F4F27 Fig. 29H���K Etymology The specific name refers to the characteristic columellar folds (��� crassidens ���, thick teeth). Type material Holotype GALICIA BANK ��� 1 sh (Fig. 29 H ��� I, 2.2 mm high); 42��28.81��� N, 11��50.03��� W; 1410 m; 8 Aug. 2011; BANGAL 0711 DR15; MNCN 15.05 /200140H. Paratypes GALICIA BANK ��� 3 sh; same collection data as for holotype; MNCN 15.05 /200140P. Other material examined GALICIA BANK ��� 20 sh; 42��41.94��� N, 11��40.58��� W; 744 m; 31 Jul. 2011; BANGAL 0711 V4; MNCN. Description Shell small (holotype height 2.2 mm), semi-transparent, not very solid, globose, with a well defined suture and moderately elevated spire. Protoconch of a little more than half a whorl, smooth, without microsculpture even at high magnification. Teleoconch formed by 2�� whorls, the first one almost smooth, the last with about 38���40 well marked, irregularly spaced spiral grooves which, under high magnification, appear as continuous series of square pits, and also with very fine growth lines; in the holotype there is also a growth stage in the last half whorl. Aperture slightly more than ⅔ of the total height, with two very marked columellar folds, the abapical one slightly larger, and with a very blunt and thick tooth in the middle of the parietal edge. Outer lip only slightly thickened, with a rounded edge. Very short siphonal canal. Colour uniformly white. Remarks This tiny species resembles Ringicula blanchardi Dautzenberg & H. Fischer, 1896, described from the bathyal of the Azores, with which it shares the considerable development of the parietal tooth and the very clear spiral sculpture. It differs from it, however, because of its smaller size and more globose shape and lower spire with almost one whorl less. The great development of the parietal tooth, absent even in adults of R. nitida, indicates that, despite the scarce thickening of the outer lip, these are adult shells. The specimen from the GB reported by Rol��n Mosquera (1983: 280) as Ringicula blanchardi Dautzenberg & H. Fischer, 1896 is in such a bad state that it cannot be recognized. Family uncertain, Published as part of Gofas, Serge, Luque, ��ngel A., Oliver, Joan Daniel, Templado, Jos�� & Serrano, Alberto, 2021, The Mollusca of Galicia Bank (NE Atlantic Ocean), pp. 1-114 in European Journal of Taxonomy 785 (1) on pages 70-71, DOI: 10.5852/ejt.2021.785.1605, http://zenodo.org/record/5798418, {"references":["Rolan Mosquera E. 1983. Moluscos de la ria de Vigo 1. Gasteropodos. Thalassas 1 (1) Anexo 1: 1 - 383."]}

���Skenea ��� ponsonbyi (Dautzenberg & H. Fischer, 1896) Fig. 15E���F Cyclostrema ponsonbyi Dautzenberg & H. Fischer, 1897: 176, pl. 4 figs 12���14. Skenea ponsonbyi ��� Hoffman et al. 2020c: 71���73. Material examined GALICIA BANK ��� 4 sh; 43��00.12��� N, 11��57.67��� W; 1706 m; 29 Jul. 2011; BANGAL 0711 V2; MNCN ��� 5 sh; 42��56.77��� N, 11��58.53��� W; 1631 m; 2 Aug. 2011; BANGAL 0711 V5; MNCN ��� 2 sh; 42��59.61��� N, 11��58.41��� W; 1671 m; 7 Aug. 2011; BANGAL 0711 V9; MNCN. Remarks This is, to our knowledge, the first time that this species is reported outside the Azores (Dautzenberg & Fischer 1896) and the South Azorean Seamount Chain (Hoffman et al. 2020c). The external sculpture recalls that of Moelleria costulata (M��ller, 1842), a boreal Atlantic species which belongs to the family Colloniidae Cossmann, 1917 and has a calcareous operculum fitting exactly the aperture; the flexuous contour of the aperture in the present species suggests that the operculum was flexible and that this similarity does not indicate reationship. For the time being, with no data on the living animal, there is no straightforward generic placement. Cyclostrema Marryat, 1819, a member of the family Liotiidae Gray, 1850 with also a calcareous operculum, is obviously inadequate and we conservatively use the catchall genus ��� Skenea ���, in a broad sense meaning a skeneimorph species, following in that WoRMS Editorial Board (2021)., Published as part of Gofas, Serge, Luque, ��ngel A., Oliver, Joan Daniel, Templado, Jos�� & Serrano, Alberto, 2021, The Mollusca of Galicia Bank (NE Atlantic Ocean), pp. 1-114 in European Journal of Taxonomy 785 (1) on page 48, DOI: 10.5852/ejt.2021.785.1605, http://zenodo.org/record/5798418, {"references":["Hoffman L., Gofas S. & Freiwald A. 2020 c. A large biodiversity of \" skeneimorph \" (Gastropoda, Vetigastropoda) from the South Azorean Seamount Chain with the description of seventeen new species. Iberus supplement 9: 1 - 82.","Dautzenberg P. & Fischer H. 1896. Dragages effectues par l'Hirondelle et par la Princesse Alice 1888 - 1895. 1. Mollusques Gasteropodes. Memoires de la Societe zoologique de France 9: 395 - 498, pl. 15 - 22.","WoRMS Editorial Board. 2021. World Register of Marine Species. Available from http: // www. marinespecies. org / index. php [accessed 7 Mar. 2021]."]}

Genus Acteocina Gray, 1847 Type species Acteon wetherellii Lea, 1833, by original designation., Published as part of Gofas, Serge, Luque, ��ngel A., Oliver, Joan Daniel, Templado, Jos�� & Serrano, Alberto, 2021, The Mollusca of Galicia Bank (NE Atlantic Ocean), pp. 1-114 in European Journal of Taxonomy 785 (1) on page 73, DOI: 10.5852/ejt.2021.785.1605, http://zenodo.org/record/5798418

Genus Policordia Dall, Bartsch & Rehder, 1938 Type species Policordia diomedea Dall, Bartsch & Rehder, 1938, by original designation., Published as part of Gofas, Serge, Luque, ��ngel A., Oliver, Joan Daniel, Templado, Jos�� & Serrano, Alberto, 2021, The Mollusca of Galicia Bank (NE Atlantic Ocean), pp. 1-114 in European Journal of Taxonomy 785 (1) on page 78, DOI: 10.5852/ejt.2021.785.1605, http://zenodo.org/record/5798418

Genus Cylichnium Dall, 1908 Type species Utriculus domitus Dall, 1889, by original designation., Published as part of Gofas, Serge, Luque, ��ngel A., Oliver, Joan Daniel, Templado, Jos�� & Serrano, Alberto, 2021, The Mollusca of Galicia Bank (NE Atlantic Ocean), pp. 1-114 in European Journal of Taxonomy 785 (1) on page 71, DOI: 10.5852/ejt.2021.785.1605, http://zenodo.org/record/5798418

Genus Brocchinia Jousseaume, 1887 Type species Voluta mitraeformis Brocchi, 1814, by monotypy., Published as part of Gofas, Serge, Luque, ��ngel A., Oliver, Joan Daniel, Templado, Jos�� & Serrano, Alberto, 2021, The Mollusca of Galicia Bank (NE Atlantic Ocean), pp. 1-114 in European Journal of Taxonomy 785 (1) on page 62, DOI: 10.5852/ejt.2021.785.1605, http://zenodo.org/record/5798418

Genus Ledella Verrill & Bush, 1897 Type species Ledella bushae War��n, 1978, by subsequent designation, ICZN Opinion 1306., Published as part of Gofas, Serge, Luque, ��ngel A., Oliver, Joan Daniel, Templado, Jos�� & Serrano, Alberto, 2021, The Mollusca of Galicia Bank (NE Atlantic Ocean), pp. 1-114 in European Journal of Taxonomy 785 (1) on page 76, DOI: 10.5852/ejt.2021.785.1605, http://zenodo.org/record/5798418

Anekes spiralis Gofas & Luque sp. nov. urn:lsid:zoobank.org:act: CBA7FA0B-5656-47A2-ADE8-DEFE58E98B81 Fig. 17A���H Etymology The specific name refers to the characteristic spiral sculpture. Type material Holotype GALICIA BANK ��� 1 sh (Fig. 17 A ��� G, 1.7 mm in diameter); 42��56.77��� N, 11��58.53��� W; 1631 m; 2 Aug. 2011; BANGAL 0711 V5; MNCN 15.05 /200139H. Paratypes GALICIA BANK ��� 1 spm and 7 sh; same collection data as for holotype; MNCN 15.05 /200139P. Other material examined GALICIA BANK ��� 1 sh; 43��00.12��� N, 11��57.67��� W; 1706 m; 29 Jul. 2011; BANGAL 0711 V2; MNCN. Description Shell minute, very fragile and translucent, up to 2.1 mm height and maximum diameter, trochiform, with a moderately low, slightly cyrtoconoid spire, a rounded periphery and body whorl, and a small but definite umbilicus. Protoconch of �� whorl, about 260 ��m in maximum diameter, terminated by a simple, curved edge; protoconch sculpture of minute, irregularly spaced granules. Teleoconch with up to 3 convex whorls. First whorls sculptured by minute spiral threads, irregular in size and spacing, about half the size of interspaces; occasionally these threads are interrupted or anastomosing. The spiral threads become inconspicuous on the later whorls, persisting in the subsutural zone and within the umbilical area, but lacking in the median part of the body whorl, where only growth lines can be seen. Umbilicus narrow and deep, not delimited from the rest the whorl. Aperture evenly rounded except for a slight angle at the termination of the suture; outer lip very thin, slightly flexuous, slightly prosocline. Colour slightly yellowish on fresh shells, otherwise whitish. Remarks Species of Anekes are mostly characterized by a peculiar ��� Anekes sculpture��� which consists of minute raised lines, anastomosing in a criss-cross pattern. In Anekes affinis (Jeffreys, 1883) this sculpture is spread over the entire surface and quite noticeable. Anekes sculpturata War��n, 1992 is similar but smaller (hardly exceeds 1 mm) and the microsculpture has a preferential orientation in the spiral direction, while in A. affinis it forms a non-directional network. In Anekes paucistriata War��n, 1992 the sculpture is evident only on the first whorl and may also occur in the umbilicus, but it is almost completely missing in intermediate surface and an attentive examination is required, under strong magnification and preferably under SEM, to detect it. This kind of sculpture is not exclusive of the genus Anekes, and it is also present on Granigyra inflata (War��n, 1992), originally described in Anekes but later (War��n 1996) found to have radular characters closer to Granigyra Dall, 1889. Anekes spiralis sp. nov. differs from the other species of Anekes in that the microsculpture is definitely spiral, not just with a preferential orientation like in A. sculpturata or in A. undulisculpta, but a limited anastomosing pattern occurs on some (especially the very early) parts of the shell of A. spiralis sp. nov., supporting the generic placement., Published as part of Gofas, Serge, Luque, ��ngel A., Oliver, Joan Daniel, Templado, Jos�� & Serrano, Alberto, 2021, The Mollusca of Galicia Bank (NE Atlantic Ocean), pp. 1-114 in European Journal of Taxonomy 785 (1) on pages 48-51, DOI: 10.5852/ejt.2021.785.1605, http://zenodo.org/record/5798418, {"references":["Waren A. 1992. New and little known \" Skeneimorph \" gastropods from the Mediterranean Sea and the adjacent Atlantic Ocean. Bollettino Malacologico 27 (10 - 12): 149 - 248.","Waren A. 1996. New and little known Mollusca from Iceland and Scandinavia. Part 3. Sarsia 81 (3): 197 - 245. https: // doi. org / 10.1080 / 00364827.1996.10413622"]}

Genus Tiberia Jeffreys, 1884 Type species Pyramidella minuscula Monterosato, 1880, by subsequent designation., Published as part of Gofas, Serge, Luque, ��ngel A., Oliver, Joan Daniel, Templado, Jos�� & Serrano, Alberto, 2021, The Mollusca of Galicia Bank (NE Atlantic Ocean), pp. 1-114 in European Journal of Taxonomy 785 (1) on page 66, DOI: 10.5852/ejt.2021.785.1605, http://zenodo.org/record/5798418, {"references":["Jeffreys J. G. 1878 - 1885. On the Mollusca procured during the H. M. S. \" Lightning \" and \" Porcupine \" expedition. Proceedings of the Zoological Society of London. Part 1 (1878): 393 - 416, pls 22 - 23; Part 2 (1879): 553 - 588 pl. 45 - 46 [October 1879]; Part 3 (1881): 693 - 724, pl. 61; Part 4 (1881): 922 - 952, pls 70 - 71 [1882]; Part 5 (1882): 656 - 687, pls 49 - 50 [1883]. Part 6 (1883): 88 - 115 pls 19 - 20; Part 7 (1884): 111 - 149, pls 9 - 10; Part 8 (1884): 341 - 372, pls 26 - 28; Part 9 (1885): 27 - 63 pls 4 - 6."]}

Genus Ringicula Deshayes, 1838 Type species Marginella auriculata M��nard de la Groye, 1811, by subsequent designation., Published as part of Gofas, Serge, Luque, ��ngel A., Oliver, Joan Daniel, Templado, Jos�� & Serrano, Alberto, 2021, The Mollusca of Galicia Bank (NE Atlantic Ocean), pp. 1-114 in European Journal of Taxonomy 785 (1) on page 70, DOI: 10.5852/ejt.2021.785.1605, http://zenodo.org/record/5798418

Key to species of Buccinidae and Colidae found in the GB (see also Bouchet & War��n 1985) 1. Sculpture conspicuous, with definite spiral ridges........................................................................... 2 ��� Sculpture attenuated, consisting only of fine spiral grooves............................................................ 3 2. Sculpture mostly spiral, shell commonly> 5 cm.......................................................................................................................................................... Troschelia berniciensis (King, 1846) (Fig. 23J���K) ��� Sculpture with conspicuous knobs along the periphery....................................................................................................................................................... Kryptos koehleri (Locard, 1896) (Fig. 23L���M) 3. Protoconch of little more than 1 whorl, with a large nucleus................................................................................................................................................. Colus gracilis (da Costa, 1778) (Fig. 24A���G) ��� Protoconch of more than 2 whorls, with a small nucleus............................................................................................................................................. Colus jeffreysianus (P. Fischer, 1868) (Fig. 24H���K) Remarks There are two species of Colus R��ding, 1798 to be found on GB (Fig. 24), and their correct identification is crucial since they are an important component of the benthic community and food chain. Both have extremely similar shells and their accurate identification relies essentially on the diagnostic character of the protoconch. Colus gracilis is found on the summit platform and the adult is somewhat larger and more solid, whereas C. jeffreysianus has a broad distribution on the deeper part of the slope. Colus aurariae Fraussen, Rosado, Afonso & Monteiro, 2009, described from off Portugal in 200���500 m depth, differs from C. gracilis in having both early whorls and siphonal canal more stretched out; it was not found on GB., Published as part of Gofas, Serge, Luque, ��ngel A., Oliver, Joan Daniel, Templado, Jos�� & Serrano, Alberto, 2021, The Mollusca of Galicia Bank (NE Atlantic Ocean), pp. 1-114 in European Journal of Taxonomy 785 (1) on pages 55-62, DOI: 10.5852/ejt.2021.785.1605, http://zenodo.org/record/5798418, {"references":["Bouchet P. & Waren A. 1985. Revision of the Northeast Atlantic bathyal and abyssal Neogastropoda excluding Turridae (Mollusca, Gastropoda). Bollettino Malacologico Supplemento 1: 123 - 296. https: // doi. org / 10.5962 / bhl. title. 140763","Bouchet P. & Waren A. 1986. Revision of the Northeast Atlantic bathyal and abyssal Aclidiidae, Eulimidae, Epitoniidae (Mollusca, Gastropoda). Bollettino Malacologico Supplemento 2: 297 - 576. https: // doi. org / 10.5962 / bhl. title. 140762","Jeffreys J. G. 1878 - 1885. On the Mollusca procured during the H. M. S. \" Lightning \" and \" Porcupine \" expedition. Proceedings of the Zoological Society of London. Part 1 (1878): 393 - 416, pls 22 - 23; Part 2 (1879): 553 - 588 pl. 45 - 46 [October 1879]; Part 3 (1881): 693 - 724, pl. 61; Part 4 (1881): 922 - 952, pls 70 - 71 [1882]; Part 5 (1882): 656 - 687, pls 49 - 50 [1883]. Part 6 (1883): 88 - 115 pls 19 - 20; Part 7 (1884): 111 - 149, pls 9 - 10; Part 8 (1884): 341 - 372, pls 26 - 28; Part 9 (1885): 27 - 63 pls 4 - 6.","Bouchet P. & Waren A. 1993. Revision of the Northeast Atlantic bathyal and abyssal Mesogastropoda. Bollettino Malacologico Supplemento 3: 577 - 840. https: // doi. org / 10.5962 / bhl. title. 140732"]}

Anatoma corralae Gofas & Luque sp. nov. urn:lsid:zoobank.org:act: 990DA613-088E-477A-97C1-45B6207C044B Fig. 10 Etymology The specific name honours Eva Corral Prado, in recognition of her valuable contribution to malacology of this area. Type material Holotype GALICIA BANK ��� 1 sh (Fig. 10 D ��� F, 4.0 mm in diameter); 42��41.87��� N, 11��26.71��� W; 1720 m; 8 Aug. 2011; BANGAL 0711 V10; MNCN 15.05 /200138H. Paratypes GALICIA BANK ��� 12 spm and 19 sh; same collection data as for holotype; MNCN 15.05 /200138P. Other material examined GALICIA BANK ��� 6 spm, 14 sh; 43��00.12��� N, 11��57.67��� W; 1706 m; 29 Jul. 2011; BANGAL 0711 V2; MNCN ��� 3 sh; 42��56.77��� N, 11��58.53��� W; 1631 m; 2 Aug. 2011; BANGAL 0711 V5; MNCN. Description Shell up to 3.3 mm high and 4.1 mm maximum diameter, with low conical spire, angulate periphery, moderately inflated base and a small umbilicus. Protoconch of �� whorl, about 240 ��m in maximum diameter, terminated by a slightly flaring edge; protoconch sculpture of irregular granules which tend to form spiral lines towards the periphery. Teleoconch I (until the beginning of the selenizone) about 1.1 whorl, with about 45���50 faint axial riblets, more indistinct in their adapical part, and with a distinct spiral thread abutting on the beginning of the selenizone. Teleoconch II with 2 to 2.5 whorls, separated by a deep suture, and the space between suture and selenizone (the ���sutsel��� according to Geiger 2012) somewhat wider than the latter. Marked peripheral keel, accentuated by the abapical edge of selenizone, which is more prominent than the adapical edge. Selenizone delimited by two narrow lamellae, inside with weakly marked growth stages. Adapical surface of whorls with axial riblets and very thin spiral threads; the riblets arched, much narrower than the interspaces, uneven and very irregularly spaced, attenuated upon reaching the selenizone, about 70 on the first whorl of teleoconch II, about 110���120 on the last whorl; spiral threads, about 20 in the last half-whorl, attenuated in the part that borders the selenizone. Base regularly convex, with sculpture of axial riblets and spiral threads similar in density and appearance to those of the adapical part; the ribs are somewhat flexuous and prolonged inside the umbilicus; the spiral cords, about 35���40, are somewhat weaker towards the periphery. Umbilicus small, without apparent funiculus. Aperture rounded, interrupted by an incision which extends on about �� of the last whorl and narrows at the edge. Colour white. Distribution So far only known from deep-water off the GB. Remarks Anatoma corralae sp. nov. is most similar to A. schiottei H��isaeter & Geiger, 2011, described from the Norwegian Sea, and was mistaken for it in the preliminary report of INDEMARES BANGAL (Gofas et al. 2014b). It differs in being larger (4 mm, compared to 2.25 mm in A. schiottei), having a longer teleoconch I (more than one whorl vs 0.75 whorl) with much more numerous axial riblets (50 vs 15), and in lacking a funiculus in the umbilicus (conspicuous in A. schiottei, see H��isaeter & Geiger 2011: fig. 48). Nevertheless, both species share the same angular outline, the microsculpture of the protoconch with granules tending to be aligned along spiral lines, and the shape of the edge of the protoconch, which is only slightly flaring and has no secondary thickening. The protoconch microsculpture, unusual in the genus, suggests that they may be related. Among the species locally present, Anatoma umbilicata, which is found together in the same hauls, differs clearly by its broad umbilicus and in being practically smooth. Anatoma tenuisculpta is quite similar to Anatoma corralae sp. nov. in size and outline, but differs in having a much coarser axial sculpture forming a regular lattice with small nodules at the intersections of riblets and spiral threads; it also has a much shorter teleoconch I, hardly over half a whorl. Anatoma richardi, which is found on GB but not in the same depth interval, also has such coarser sculpture, and its last whorl is more ample and its suture is not so far below the selenizone. ���Skeneimorph��� species This informal group includes the members of the family Skeneidae W. Clark, 1851 but also members of other Vetigastropod families including several genera of uncertain phylogenetic affinity (Hoffman et al. 2020c) which have been shown by Kano et al. (2009) to be related to the superfamily Seguenzioidea or to other non-vetigastropod clades, like neomphalids or heterobranchs (Haszprunar et al. 2011, 2016). Key to the ���skeneimorph��� species found in the GB 1. Shell smooth and glossy, with reduced or filled umbilicus............................................................... 2 ��� Shell smooth, but not glossy, or sculptured, with definite umbilicus............................................... 3 2. Shell nearly as high as broad.............. Cirsonella romettensis (Granata-Grillo, 1877) (Fig. 14A���C) ��� Shell definitely broader than high (h/w less than 0.7)................................................................................................................... Seamountiella azorica (Dautzenberg & H. Fischer, 1896) (Fig. 14D���F) 3. Axial sculpture obvious.................................................................................................................... 4 ��� No axial sculpture.............................................................................................................................. 5 4. Axial sculpture of narrow, widely spaced ribs.................................................................................................................................................. Vetulonia paucivaricosa (Dautzenberg, 1889) (Fig. 13F���H) ��� Axial sculpture of tightly packed wrinkles....................................................................................................................................... ��� Skenea ��� ponsonbyi (Dautzenberg & H. Fischer, 1896) (Fig. 15E���F) 5. Surface, at least around the umbilicus, with a distinct sculpture...................................................... 6 ��� No conspicuous sculpture, or only subsutural and/or periumbilical keel....................................... 13 6. Sculpture essentially spiral............................................................................................................... 7 ��� Sculpture different............................................................................................................................ 9 7. Spiral sculpture only surrounding the umbilical area, sometimes a subsutural cord at least on the early whorls..................................................................................... Moelleriopsis sp. (Fig. 15C���D) ��� Spiral sculpture all over the shell...................................................................................................... 8 8. Shell yellowish, sculpture of small but definite spiral ridges.......................................................................................................................................... Rugulina fragilis (G.O. Sars, 1878) (Fig. 14G���H) ��� Shell whitish, sculpture of minute spiral threads....................................................................................................................................................... Anekes spiralis Gofas & Luque sp. nov. (Fig. 17A���H) 9. Sculpture of oblique threads, which form a mesh......................................................................... 10 ��� Sculpture of minute granules all over the shell (may be very tenuous).......................................... 12 10. Sculpture forming an oblique mesh all over the shell.....................................................................11 ��� Sculpture tenuous, restricted to apical and umbilical areas................................................................................................................................................. Anekes paucistriata War��n, 1992 (Fig. 16F���K) 11. Shell conical, aperture height about half of total height......................................................................................................................................................... Anekes affinis (Jeffreys, 1883) (Fig. 16A���E) ��� Shell globose, aperture height about two thirds of total height.............................................................................................................................................. Granigyra inflata (War��n, 1992) (Fig. 17I���L) 12. Aperture very broad, more than half the shell diameter.................................................................................................................................................. Granigyra pruinosa (Jeffreys, 1883) (Fig. 15G���J) ��� Aperture diameter less than half the shell diameter............................................................................................................................................................ Granigyra tenera (Jeffreys, 1883) (Fig. 15K���L) 13. Spiral keel present at least on the first teleoconch whorl................................................................ 14 ��� Whorls convex, with no spiral keel even around umbilicus............................................................................................................................................. Akritogyra similis (Jeffreys, 1883) (Fig. 15A���B) 14. Abapical keel sharp and distant from the umbilicus...... Trenchia biangulata Rubio & Rol��n, 2013 ��� Abapical keel blunt and situated within the umbilicus, or at its edge............................................ 15 15. Shell higher than broad, subsutural keel on most whorls............................................................................................................................................................. Mikro scalaroides (Rubio & Rol��n, 2013) ��� Shell wider than high, subsutural keel fading on last whorls.......................................................................................................................................... Mikro minimus (Seguenza G., 1876) (Fig. 14I���L), Published as part of Gofas, Serge, Luque, ��ngel A., Oliver, Joan Daniel, Templado, Jos�� & Serrano, Alberto, 2021, The Mollusca of Galicia Bank (NE Atlantic Ocean), pp. 1-114 in European Journal of Taxonomy 785 (1) on pages 40-43, DOI: 10.5852/ejt.2021.785.1605, http://zenodo.org/record/5798418, {"references":["Geiger D. L. 2012. Monograph of the Little Slit Shells. Santa Barbara Museum of Natural History, Santa Barbara.","Hoisaeter T. & Geiger D. L. 2011. Species of Anatoma (Gastropoda: Anatomidae) in Norwegian and adjacent waters, with the description of two new species. The Nautilus 125 (3): 89 - 112.","Gofas S., Salas C. & Luque A. A. 2014 b. Anexo 6 - Informe sobre los Moluscos del banco de Galicia. In: Informe final del proyecto LIFE + INDEMARES (LIFE 07 / NAT / E / 000732) \" Caracterizacion ecologica del banco de Galicia \": 181 - 195. Instituto Espanol de Oceanografia, Santander and Fundacion Biodiversidad, Madrid.","Hoffman L., Gofas S. & Freiwald A. 2020 c. A large biodiversity of \" skeneimorph \" (Gastropoda, Vetigastropoda) from the South Azorean Seamount Chain with the description of seventeen new species. Iberus supplement 9: 1 - 82.","Kano Y., Chikyu E. & Waren A. 2009. Morphological, ecological and molecular characterization of the enigmatic planispiral snail genus Adeuomphalus (Vetigastropoda: Seguenzioidea). Journal of Molluscan Studies 75 (4): 397 - 418. https: // doi. org / 10.1093 / mollus / eyp 037","Haszprunar G., Speimann E., Hawe A. & Hess M. 2011. Interactive 3 D anatomy and affinities of the Hyalogyrinidae, basal Heterobranchia (Gastropoda) with a rhipidoglossate radula. Organisms, Diversity & Evolution 11: 201 - 236. https: // doi. org / 10.1007 / s 13127 - 011 - 0048 - 0","Haszprunar G., Kunze T., Bruckner M. & Hess M. 2016. Towards a sound definition of Skeneidae (Mollusca, Vetigastropoda): 3 D interactive anatomy of the type species, Skenea serpuloides (Montagu, 1808) and comments on related taxa. Organisms, Diversity and Evolution 16: 577 - 595. https: // doi. org / 10.1007 / s 13127 - 015 - 0260 - 4","Waren A. 1992. New and little known \" Skeneimorph \" gastropods from the Mediterranean Sea and the adjacent Atlantic Ocean. Bollettino Malacologico 27 (10 - 12): 149 - 248.","Rubio F. & Rolan E. 2013. Some new species of Skeneinae (Prosobranchia, Turbinidae). Iberus 31 (1): 1 - 9. https: // doi. org / 10.5281 / zenodo. 4579452"]}

Genus Emarginula Lamarck, 1801 Type species Emarginula conica Lamarck, 1801 = E. fissura (Linnaeus, 1758), by monotypy., Published as part of Gofas, Serge, Luque, ��ngel A., Oliver, Joan Daniel, Templado, Jos�� & Serrano, Alberto, 2021, The Mollusca of Galicia Bank (NE Atlantic Ocean), pp. 1-114 in European Journal of Taxonomy 785 (1) on page 30, DOI: 10.5852/ejt.2021.785.1605, http://zenodo.org/record/5798418

Key to genera and species of the superfamily Cuspidarioidea found on GB 1. Sculpture with definite radial ribs..................................................................................................... 2 ��� Sculpture only commarginal (may include faint ridges from umbo to posterior part), or surface of shell smooth.................................................................................................................................. 3 2. Two strong radial ribs on posterior half, anterior with commarginal undulations................................................................................................................ Myonera paucistriata Dall, 1886 (Fig. 41A���C) ��� Numerous fine radial ribs on posterior half...... Cardiomya cadiziana M. Huber, 2010 (Fig. 41G���I) 3. Posterior rostrum short and stout...................................................................................................... 4 ��� Posterior rostrum tapering................................................................................................................ 6 4. Shell inflated, smooth and glossy................. Jeffreysomya truncata (Jeffreys, 1882) (Fig. 41D���F) ��� Shell compressed, with marked growth lines and wrinkles on posterior part.................................. 5 5. An anterior lateral tooth on the right valve.................................................................................................................................................... Protocuspidaria verityi Allen & Morgan, 1981 (Fig. 43 D���G) ��� No teeth on either valve.................. Protocuspidaria simplis Allen & Morgan, 1981 (Fig. 43 H���K) 6. Hinge of right valve with a small knob-like cardinal and no lateral teeth; posterior rostrum pointed, not definitely distinct from rest of the shell.... Halonympha depressa (Jeffreys, 1882) (Fig. 43 A���C) ��� Hinge of right valve with at least one (posterior) lateral tooth............................................................7 7. Hinge of right valve with anterior and posterior lateral teeth (genus Rhinoclama)......................... 8 ��� Hinge of right valve with only a posterior lateral tooth............................................................................................................................................. Cuspidaria cf. rostrata (Spengler, 1793) (Fig. 42G���I) 8. Posterior part of shell (excluding rostrum) with widely spaced commarginal cordlets; anterior lateral long and lamellar...................................... Rhinoclama semistrigosa (Jeffreys, 1882) (Fig. 42D���F) ��� Posterior part of shell (excluding rostrum) with growth lines only; anterior lateral short and bulging................................................................... Rhinoclama teres (Jeffreys, 1882) (Fig. 42A���C), Published as part of Gofas, Serge, Luque, ��ngel A., Oliver, Joan Daniel, Templado, Jos�� & Serrano, Alberto, 2021, The Mollusca of Galicia Bank (NE Atlantic Ocean), pp. 1-114 in European Journal of Taxonomy 785 (1) on pages 86-87, DOI: 10.5852/ejt.2021.785.1605, http://zenodo.org/record/5798418, {"references":["Huber M. 2010. Compendium of Bivalves. A Full-color Guide to 3,300 of the World's Marine Bivalves. A status on Bivalvia after 250 Years of Research. ConchBooks, Hackenheim.","Allen J. A. & Morgan R. E. 1981. The functional morphology of Atlantic deep water species of the families Cuspidariidae and Poromyidae (Bivalvia): an analysis of the evolution of the septibranch condition. Philosophical Transactions of the Royal Society of London 294: 413 - 546. https: // doi. org / 10.1098 / rstb. 1981.0117"]}

Tiberia sp. Fig. 28D���F Material examined GALICIA BANK ��� 1 spm, 2 sh; 42��41.87��� N, 11��26.71��� W; 1720 m; 8 Aug. 2011; BANGAL 0711 V10; MNCN. Remarks The genus Tiberia is diagnosed by being umbilicate and having a straight columella with three folds, of which the two abapical ones are inconspicuous. The type species Pyramidella minuscula Monterosato, 1880 has a rather thick shell with brown spiral bands, one below the suture and another one above it, prolonged on the middle part of the last whorl. One specimen collected in 1720 m deep on GB (Fig. 28D���F) is definitely a Tiberia but differs from T. minuscula in being colourless, and in having a very thin shell with a markedly keeled last whorl. Pyramidella curtissima Locard, 1897, described from deep water (Travailleur 1881, stn 3, 3307 m; stn 30, 1203 m; Travailleur 1882, stn 13, 2030 m) off Portugal, is much stouter than the specimen illustrated here. The figured syntype could not be traced in the ���Travailleur��� and ���Talisman��� collection of MNHN, Paris; one shell with no indication of station number, labelled ��� Portugal ��� (Fig. 28G) is in poor condition, and four other shells from ���Travailleur��� 1881 stn 31 (not mentioned in Locard 1897) are the rissoid Benthonella tenella. Without additional material at hand, the observed differences are not sufficient to demonstrate that our specimen is specifically distinct from T. minuscula and it is therefore reported as Tiberia sp., Published as part of Gofas, Serge, Luque, ��ngel A., Oliver, Joan Daniel, Templado, Jos�� & Serrano, Alberto, 2021, The Mollusca of Galicia Bank (NE Atlantic Ocean), pp. 1-114 in European Journal of Taxonomy 785 (1) on page 66, DOI: 10.5852/ejt.2021.785.1605, http://zenodo.org/record/5798418, {"references":["Locard A. 1897 - 1898. Expeditions scientifiques du Travailleur et du Talisman pendant les annees 1880, 1881, 1882 et 1883. Mollusques testaces. Masson, Paris. https: // doi. org / 10.5962 / bhl. title. 98313"]}

Genus Melanella Bowdich, 1822 Type species Melanella dufresnei Bowdich, 1822, by monotypy., Published as part of Gofas, Serge, Luque, ��ngel A., Oliver, Joan Daniel, Templado, Jos�� & Serrano, Alberto, 2021, The Mollusca of Galicia Bank (NE Atlantic Ocean), pp. 1-114 in European Journal of Taxonomy 785 (1) on page 55, DOI: 10.5852/ejt.2021.785.1605, http://zenodo.org/record/5798418

Genus Pristigloma Dall, 1900 Type species Glomus nitens Jeffreys, 1876, retained from replaced name., Published as part of Gofas, Serge, Luque, ��ngel A., Oliver, Joan Daniel, Templado, Jos�� & Serrano, Alberto, 2021, The Mollusca of Galicia Bank (NE Atlantic Ocean), pp. 1-114 in European Journal of Taxonomy 785 (1) on page 78, DOI: 10.5852/ejt.2021.785.1605, http://zenodo.org/record/5798418

Pristigloma minima (Seguenza, 1877) Fig. 31J���K Yoldia minima Seguenza, 1877a: 96. Yoldia minima ��� Seguenza 1877b: 1178, pl. 5 figs 27, 27a���c. Pristigloma minima (Seguenza, 1877) ��� Hoffman & Freiwald 2017: 69. Material examined GALICIA BANK ��� 1 sh; 42��40��� N, 11��36��� W; 675���685 m; 19 Oct. 1987; SEAMOUNT 1 DW111; MNHN ��� 1 v; 43��00.12��� N, 11��57.67��� W; 1706 m; 29 Jul. 2011; BANGAL 0711 V2; MNCN ��� 2 v; 42��41.94��� N, 11��40.58��� W; 744 m; 31 Jul. 2011; BANGAL 0711 V4; MNCN. Remarks This minute species, originally described from the Pleistocene of Sicily (see Di Geronimo & La Perna 1997), has been reported from the Canaries (Ortega & Gofas 2019) and from several North Atlantic seamounts including GB (Hoffman & Freiwald 2017). Pseudoglomus pompholyx (Dall, 1890) from the Western Atlantic is superficially very similar, but larger (4 mm) and differs in that the ligament is set in a pit dorsally to the hinge line which remains unaffected (see Ockelmann & War��n 1998 for a good figure), whereas the present species has a resilifer interrupting the hinge. The generic placement could only be ascertained with live-taken specimens. Subclass Autobranchia Grobben, 1894 Superorder Anomalodesmata Family Lyonsiellidae Dall, 1895, Published as part of Gofas, Serge, Luque, ��ngel A., Oliver, Joan Daniel, Templado, Jos�� & Serrano, Alberto, 2021, The Mollusca of Galicia Bank (NE Atlantic Ocean), pp. 1-114 in European Journal of Taxonomy 785 (1) on page 78, DOI: 10.5852/ejt.2021.785.1605, http://zenodo.org/record/5798418, {"references":["Seguenza G. 1877 a. Studi stratigrafici sulla formazione pliocenica dell'Italia meridionale. Bollettino dell R. Comitato Geologico d ' Italia 8: 91 - 99.","Seguenza G. 1877 b. Nuculidi terziarie rinvenute nelle provincie meridionali d'Italia. Atti della Reale Accademia dei Lincei, Memorie della Classe di Scienze Fisiche, Matematiche e Naturali (3) 274 (1): 1163 - 1200. https: // doi. org / 10.5962 / bhl. title. 12578","Hoffman L. & Freiwald A. 2017. A unique and diverse amalgamated mollusk assemblage from the Coral Patch Seamount, eastern Atlantic. Miscellanea Malacologica 7 (4): 61 - 79.","Di Geronimo I. & La Perna R. 1997. Pleistocene bathyal molluscan assemblages from southern Italy. Revista Italiana di Paleontologia e Stratigrafia 103 (3): 389 - 426.","Ortega J. & Gofas S. 2019. The unknown bathyal of the Canaries: new species and new records of deepsea Mollusca. Zoosystema 41 (26): 513 - 551. https: // doi. org / 10.5252 / zoosystema 2019 v 41 a 26","Ockelmann K. & Waren A. 1998. Taxonomy of and biological notes on the bivalve genus Microgloma, with comments on protobranch nomenclature. Ophelia 48 (1): 1 - 24. https: // doi. org / 10.1080 / 00785236.1998.10428674"]}

Myonera paucistriata Dall, 1886 Fig. 41A���C Material examined GALICIA BANK ��� 4 spm, 16 v; 42��41.87��� N, 11��26.71��� W; 1720 m; 8 Aug. 2011; BANGAL 0711 V10; MNCN. Remarks This species was mistaken in the preliminary INDEMARES BANGAL 0711 report (Gofas et al. 2014b), for the similar M. angularis (Jeffreys, 1876) which has been reported from off Portugal (type locality) and off northwestern Morocco (Salas 1996: fig. 127) but not in Spain. The latter differs in having only one sharp keel delimiting the smooth posterior area and in having more numerous and finer commarginal ridges on the anterior and median part of the shell. Myonera acutecarinata (Dautzenberg & H. Fischer, 1906), described from off the Cape Verde Islands, is also very similar but more tapering posteriorly. Myonera bicarinata E.A. Smith, 1896 and Myonera dispar (Dall, Bartsch & Rehder, 1938) have been synonymized by Allen & Morgan (1981) but cautiously retained as separate species by Huber (2010), taking into account their type localities in the Indian Ocean and off Hawaii, respectively. Family Protocuspidariidae Scarlato & Starobogatov, 1983, Published as part of Gofas, Serge, Luque, ��ngel A., Oliver, Joan Daniel, Templado, Jos�� & Serrano, Alberto, 2021, The Mollusca of Galicia Bank (NE Atlantic Ocean), pp. 1-114 in European Journal of Taxonomy 785 (1) on pages 87-94, DOI: 10.5852/ejt.2021.785.1605, http://zenodo.org/record/5798418, {"references":["Gofas S., Salas C. & Luque A. A. 2014 b. Anexo 6 - Informe sobre los Moluscos del banco de Galicia. In: Informe final del proyecto LIFE + INDEMARES (LIFE 07 / NAT / E / 000732) \" Caracterizacion ecologica del banco de Galicia \": 181 - 195. Instituto Espanol de Oceanografia, Santander and Fundacion Biodiversidad, Madrid.","Salas C. 1996. Marine Bivalves from off the Southern Iberian Peninsula collected by the Balgim and Fauna I expeditions. Haliotis 25: 33 - 100.","Allen J. A. & Morgan R. E. 1981. The functional morphology of Atlantic deep water species of the families Cuspidariidae and Poromyidae (Bivalvia): an analysis of the evolution of the septibranch condition. Philosophical Transactions of the Royal Society of London 294: 413 - 546. https: // doi. org / 10.1098 / rstb. 1981.0117","Huber M. 2010. Compendium of Bivalves. A Full-color Guide to 3,300 of the World's Marine Bivalves. A status on Bivalvia after 250 Years of Research. ConchBooks, Hackenheim.","Locard A. 1897 - 1898. Expeditions scientifiques du Travailleur et du Talisman pendant les annees 1880, 1881, 1882 et 1883. Mollusques testaces. Masson, Paris. https: // doi. org / 10.5962 / bhl. title. 98313"]}

Melanella cf. myriotrochi Bouchet & War��n, 1986 Fig. 19F���G Melanella? myriotrochi Bouchet & War��n, 1986: 383, figs 906���907. Material examined GALICIA BANK ��� 1 spm; 43��00.12��� N, 11��57.67��� W; 1706 m; 29 Jul. 2011; BANGAL 0711 V2; MNCN ��� 1 spm; 42��41.87��� N, 11��26.71��� W; 1720 m; 8 Aug. 2011; BANGAL 0711 V10; MNCN. Remarks This species was described on a single specimen, probably immature judging from the very thin, brittle aperture. The specimen illustrated here is larger and definitely adult, but has, like the holotype, a small mucronate protoconch, teleoconch whorls unusually convex for a eulimid, and a projecting profile of the outer lip, making this the closest match we could find among the species described from the area. This identification remains tentative, especially taking into account that the host holothurian species was not found in our material., Published as part of Gofas, Serge, Luque, ��ngel A., Oliver, Joan Daniel, Templado, Jos�� & Serrano, Alberto, 2021, The Mollusca of Galicia Bank (NE Atlantic Ocean), pp. 1-114 in European Journal of Taxonomy 785 (1) on page 55, DOI: 10.5852/ejt.2021.785.1605, http://zenodo.org/record/5798418, {"references":["Bouchet P. & Waren A. 1986. Revision of the Northeast Atlantic bathyal and abyssal Aclidiidae, Eulimidae, Epitoniidae (Mollusca, Gastropoda). Bollettino Malacologico Supplemento 2: 297 - 576. https: // doi. org / 10.5962 / bhl. title. 140762"]}

Ringicula nitida Verrill, 1872 Fig. 29F���G Ringicula nitida Verrill, 1872: 16. Ringicula nitida ��� Bouchet 1975: 329���331. Material examined GALICIA BANK ��� 20 sh; 43��00.12��� N, 11��57.67��� W; 1706 m; 29 Jul. 2011; BANGAL 0711 V2; MNCN ��� 1 sh; 42��56.77��� N, 11��58.53��� W; 1631 m; 2 Aug. 2011; BANGAL 0711 V5; MNCN ��� 1 sh; 42��59.61��� N, 11��58.41��� W; 1671 m; 7 Aug. 2011; BANGAL 0711 V9; MNCN. Remarks Bouchet (1975) considered several deep-sea species of Ringicula as synonyms of R. nitida and, based on this, cited that species from several localities off the northwestern Iberian Peninsula, including GB. However, Mariottini et al. (2000) considered R. nitida as restricted to the Western Atlantic and referred the records by Bouchet (1975) to R. gianninii Nordsieck, 1974, which differs by having a higher spire, more convex whorls, and by forming a parietal tooth (���columellar tooth��� in Mariottini et al. 2000) which R. nitida does not have. However, the specimens collected on GB have a low spire with slightly convex whorls and lack a parietal tooth, therefore being so similar to the lectotype of the American species (Mariottini et al. 2000: fig. 7) that, except for the geographic distance, we see no reason for their specific separation with the material at hand. The only difference observed is the number of spiral striae, which are around 30 in GB shells, less conspicuous in the abapical part of the whorls, while they are about 14 in the lectotype of R. nitida. Bearing in mind that most of the other heterobranchs present in the area such as Acteon monterosatoi Dautzenberg, 1889, Crenilabium exile (Jeffreys, 1870), Pyrunculus ovatus (Jeffreys, 1871) and Scaphander punctostriatus (Mighels & C.B. Adams, 1842) are considered amphiatlantic, we find more prudent to assign these specimens, tentatively, to R. nitida rather than describe them as a new species., Published as part of Gofas, Serge, Luque, ��ngel A., Oliver, Joan Daniel, Templado, Jos�� & Serrano, Alberto, 2021, The Mollusca of Galicia Bank (NE Atlantic Ocean), pp. 1-114 in European Journal of Taxonomy 785 (1) on page 70, DOI: 10.5852/ejt.2021.785.1605, http://zenodo.org/record/5798418, {"references":["Verrill A. E. 1872. Results of recent dredging expeditions on the coast of New England. American Journal of Science and Arts (3) 5: 1 - 16.","Bouchet P. 1975. Opisthobranches de profondeur de l'Ocean Atlantique. I Cephalaspidea. Cahiers de Biologie Marine 16 (3): 317 - 365.","Mariottini P., Smriglio C. & Oliverio M. 2000. The Ringicula leptocheila complex, with the description of a new species (Opisthobranchia Ringiculidae). Bollettino Malacologico 36 (5 - 8): 71 - 82."]}

Fusceulima digitalis Hoffman & Engl, 2021 Fig. 20I���J Balcis sp. ��� Rol��n Mosquera 1983: 199. Material examined GALICIA BANK ��� 1 sh; 42��41.94��� N, 11��40.58��� W; 744 m; 31 Jul. 2011; BANGAL 0711 V4; MNCN ��� 3 sh; 42��28.81��� N, 11��50.03��� W; 1410 m; 8 Aug. 2011; BANGAL 0711 DR15; MNCN. Remarks This recently described species is very different from any known eulimid in European waters. It is tentatively included in the genus Fusceulima Laseron, 1955, due to its small shell, with few, almost flat whorls, short aperture and curved outer lip (see diagnosis of Fusceulima in Bouchet & War��n 1986, Souza & Pimenta 2014 and Engl et al. 2021). It was described and illustrated for the first time as Balcis sp. by Rol��n Mosquera (1983: 199), from the Galicia Bank. Families Buccinidae Rafinesque, 1815 and Colidae Gray, 1857 Key to species of Buccinidae and Colidae found in the GB (see also Bouchet & War��n 1985) 1. Sculpture conspicuous, with definite spiral ridges........................................................................... 2 ��� Sculpture attenuated, consisting only of fine spiral grooves............................................................ 3 2. Sculpture mostly spiral, shell commonly> 5 cm.......................................................................................................................................................... Troschelia berniciensis (King, 1846) (Fig. 23J���K) ��� Sculpture with conspicuous knobs along the periphery....................................................................................................................................................... Kryptos koehleri (Locard, 1896) (Fig. 23L���M) 3. Protoconch of little more than 1 whorl, with a large nucleus................................................................................................................................................. Colus gracilis (da Costa, 1778) (Fig. 24A���G) ��� Protoconch of more than 2 whorls, with a small nucleus............................................................................................................................................. Colus jeffreysianus (P. Fischer, 1868) (Fig. 24H���K) Remarks There are two species of Colus R��ding, 1798 to be found on GB (Fig. 24), and their correct identification is crucial since they are an important component of the benthic community and food chain. Both have extremely similar shells and their accurate identification relies essentially on the diagnostic character of the protoconch. Colus gracilis is found on the summit platform and the adult is somewhat larger and more solid, whereas C. jeffreysianus has a broad distribution on the deeper part of the slope. Colus aurariae Fraussen, Rosado, Afonso & Monteiro, 2009, described from off Portugal in 200���500 m depth, differs from C. gracilis in having both early whorls and siphonal canal more stretched out; it was not found on GB. Family Cancellariidae Forbes & Hanley, 1851 Key to species of Buccinidae and Colidae found in the GB (see also Bouchet & War��n 1985) 1. Sculpture conspicuous, with definite spiral ridges........................................................................... 2 ��� Sculpture attenuated, consisting only of fine spiral grooves............................................................ 3 2. Sculpture mostly spiral, shell commonly> 5 cm.......................................................................................................................................................... Troschelia berniciensis (King, 1846) (Fig. 23J���K) ��� Sculpture with conspicuous knobs along the periphery....................................................................................................................................................... Kryptos koehleri (Locard, 1896) (Fig. 23L���M) 3. Protoconch of little more than 1 whorl, with a large nucleus................................................................................................................................................. Colus gracilis (da Costa, 1778) (Fig. 24A���G) ��� Protoconch of more than 2 whorls, with a small nucleus............................................................................................................................................. Colus jeffreysianus (P. Fischer, 1868) (Fig. 24H���K) Remarks There are two species of Colus R��ding, 1798 to be found on GB (Fig. 24), and their correct identification is crucial since they are an important component of the benthic community and food chain. Both have extremely similar shells and their accurate identification relies essentially on the diagnostic character of the protoconch. Colus gracilis is found on the summit platform and the adult is somewhat larger and more solid, whereas C. jeffreysianus has a broad distribution on the deeper part of the slope. Colus aurariae Fraussen, Rosado, Afonso & Monteiro, 2009, described from off Portugal in 200���500 m depth, differs from C. gracilis in having both early whorls and siphonal canal more stretched out; it was not found on GB., Published as part of Gofas, Serge, Luque, ��ngel A., Oliver, Joan Daniel, Templado, Jos�� & Serrano, Alberto, 2021, The Mollusca of Galicia Bank (NE Atlantic Ocean), pp. 1-114 in European Journal of Taxonomy 785 (1) on pages 55-62, DOI: 10.5852/ejt.2021.785.1605, http://zenodo.org/record/5798418, {"references":["Rolan Mosquera E. 1983. Moluscos de la ria de Vigo 1. Gasteropodos. Thalassas 1 (1) Anexo 1: 1 - 383.","Bouchet P. & Waren A. 1986. Revision of the Northeast Atlantic bathyal and abyssal Aclidiidae, Eulimidae, Epitoniidae (Mollusca, Gastropoda). Bollettino Malacologico Supplemento 2: 297 - 576. https: // doi. org / 10.5962 / bhl. title. 140762","Souza L. S. de & Pimenta A. D. 2014. Fusceulima and Halielloides (Gastropoda: Eulimidae) in the southwestern Atlantic, with descriptions of two new species of Fusceulima. Zoologia 31 (6): 621 - 633. https: // doi. org / 10.1590 / S 1984 - 46702014000600008","Bouchet P. & Waren A. 1985. Revision of the Northeast Atlantic bathyal and abyssal Neogastropoda excluding Turridae (Mollusca, Gastropoda). Bollettino Malacologico Supplemento 1: 123 - 296. https: // doi. org / 10.5962 / bhl. title. 140763","Jeffreys J. G. 1878 - 1885. On the Mollusca procured during the H. M. S. \" Lightning \" and \" Porcupine \" expedition. Proceedings of the Zoological Society of London. Part 1 (1878): 393 - 416, pls 22 - 23; Part 2 (1879): 553 - 588 pl. 45 - 46 [October 1879]; Part 3 (1881): 693 - 724, pl. 61; Part 4 (1881): 922 - 952, pls 70 - 71 [1882]; Part 5 (1882): 656 - 687, pls 49 - 50 [1883]. Part 6 (1883): 88 - 115 pls 19 - 20; Part 7 (1884): 111 - 149, pls 9 - 10; Part 8 (1884): 341 - 372, pls 26 - 28; Part 9 (1885): 27 - 63 pls 4 - 6.","Bouchet P. & Waren A. 1993. Revision of the Northeast Atlantic bathyal and abyssal Mesogastropoda. Bollettino Malacologico Supplemento 3: 577 - 840. https: // doi. org / 10.5962 / bhl. title. 140732"]}

Genus Cuspidaria Nardo, 1840 Type species Cuspidaria typus Nardo, 1840 = Cuspidaria cuspidata (Olivi, 1792), by monotypy., Published as part of Gofas, Serge, Luque, ��ngel A., Oliver, Joan Daniel, Templado, Jos�� & Serrano, Alberto, 2021, The Mollusca of Galicia Bank (NE Atlantic Ocean), pp. 1-114 in European Journal of Taxonomy 785 (1) on page 87, DOI: 10.5852/ejt.2021.785.1605, http://zenodo.org/record/5798418

Cylichnium oliviforme (Watson, 1883) Fig. 30H���J Utriculus oliviformis Watson, 1883: 332. Utriculus sp. ��� Watson 1886: 648, pl. 48 fig. 6. Utriculus oliviformis ��� Dautzenberg & Fischer 1896: 400. Cylichnium oliviforme (Watson, 1883) ��� Fechter 1979: 37���38. Material examined GALICIA BANK ��� 7 sh; 42��56.77��� N, 11��58.53��� W; 1631 m; 2 Aug. 2011; BANGAL 0711 V5; MNCN ��� 6 sh; 42��41.87��� N, 11��26.71��� W; 1720 m; 8 Aug. 2011; BANGAL 0711 V10; MNCN. Remarks This species was described tentatively by Watson (1883) and later retracted by Watson (1886) on the grounds of poor condition of the material examined, originating from off the Azores in 1000 fathoms (1850 m). The species was again found off the Azores by Dautzenberg & Fischer (1896) and confirmed as valid. It was later reported from off the NW Iberian Peninsula by Fechter (1979) and transferred to the genus Cylichnium Dall, 1908. The size given 0.32 inches (8.1 mm) and the depth of the type locality are in good agreement with our material. Bouchet (1975) reported Cylichnium africanum (Locard, 1897) from R/V ��� Thalassa ��� stn X 336 in southern Bay of Biscay (44��11��� N, 05��10��� W, 1850���2050 m). He considered it distinct from Cylichnium oliviforme because, in his words, the latter is more distinctly flattened below the suture and has a finely reticulated sculpture in the upper part of the last whorl. Nevertheless, according to these characters we consider the shell figured by Bouchet (1975: pl. 4, c) as conspecific with our material. Conversely Locard (1897: pl. 2 figs 15���19) illustrated, to represent his Aceras africana, a shell in which the last whorl almost completely covers the spire whereas both the type of C. oliviforme and our specimens have a descending last whorl. Therefore, we follow Fechter (1979) in using the name C. oliviforme for the Iberian species. Family Tornatinidae P. Fischer, 1883, Published as part of Gofas, Serge, Luque, ��ngel A., Oliver, Joan Daniel, Templado, Jos�� & Serrano, Alberto, 2021, The Mollusca of Galicia Bank (NE Atlantic Ocean), pp. 1-114 in European Journal of Taxonomy 785 (1) on pages 71-73, DOI: 10.5852/ejt.2021.785.1605, http://zenodo.org/record/5798418, {"references":["Watson R. B. 1883. Mollusca of H. M. S. ' Challenger' Expedition. - Part XX. Journal of the Linnean Society (London) 17: 26 - 40, 112 - 130, 284 - 293, 319 - 340, 341 - 346. https: // doi. org / 10.1111 / j. 1096 - 3642.1884. tb 02029. x","Watson R. B. 1886. Scaphopoda and Gastropoda. Report on the Scientific Results of the Voyage of H. M. S. Challenger during 1873 - 76. Zoology 15 (42): 1 - 756, pls. 1 - 53. https: // doi. org / 10.5962 / bhl. title. 6513","Dautzenberg P. & Fischer H. 1896. Dragages effectues par l'Hirondelle et par la Princesse Alice 1888 - 1895. 1. Mollusques Gasteropodes. Memoires de la Societe zoologique de France 9: 395 - 498, pl. 15 - 22.","Fechter R. 1979. Gastropoden aus der Iberischen Tiefsee. Meteor Forchungs-Ergebnisse (D) 30: 23 - 40.","Verrill A. E. 1872. Results of recent dredging expeditions on the coast of New England. American Journal of Science and Arts (3) 5: 1 - 16.","Bouchet P. 1975. Opisthobranches de profondeur de l'Ocean Atlantique. I Cephalaspidea. Cahiers de Biologie Marine 16 (3): 317 - 365.","Locard A. 1897 - 1898. Expeditions scientifiques du Travailleur et du Talisman pendant les annees 1880, 1881, 1882 et 1883. Mollusques testaces. Masson, Paris. https: // doi. org / 10.5962 / bhl. title. 98313"]}

Cuspidaria cf. rostrata (Spengler, 1793) Fig. 42G���I Material examined GALICIA BANK ��� 3 v; 42��37.77��� N, 11��49.46��� W; 818 m; 30 Jul. 2011; BANGAL 0711 V3; MNCN ��� 4 v; 42��41.94��� N, 11��40.58��� W; 744 m; 31 Jul. 2011; BANGAL 0711 V4; MNCN. Remarks A specimen of this species from GB was figured by Rol��n et al. (1990) as Cuspidaria capensis (E.A. Smith, 1885). Specimens from GB have a posterior rostrum shorter than usually seen in Cuspidaria rostrata, and are smaller, resembling in those features Cuspidaria meteoris Krylova, 2006, described from the mid-Atlantic seamount group. However, they do not show the sloping postero-ventral margin characteristic of the latter, and are therefore conservatively identified to the mainland species., Published as part of Gofas, Serge, Luque, ��ngel A., Oliver, Joan Daniel, Templado, Jos�� & Serrano, Alberto, 2021, The Mollusca of Galicia Bank (NE Atlantic Ocean), pp. 1-114 in European Journal of Taxonomy 785 (1) on page 87, DOI: 10.5852/ejt.2021.785.1605, http://zenodo.org/record/5798418, {"references":["Rolan E., Otero Schmitt J. & Rolan Alvarez E. 1990. Moluscos de la Ria de Vigo II. Poliplacoforos, Bivalvos, Escafopodos, Cefalopodos. Thalassas Anexo 2: 1 - 276.","Krylova E. M. 2006. Bivalves of seamounts of the north-eastern Atlantic. In: Mironov A. N., Gebruk A. V. & Southward A. J. (eds) Biogeography of the North Atlantic Seamounts: 76 - 95. KMK Press, Moscow."]}

Lepetella sp. Fig. 3H Material examined GALICIA BANK ��� 1 sh; 42��28.81��� N, 11��50.03��� W; 1410 m; 8 Aug. 2011; BANGAL 0711 DR15; MNCN ��� 50 spm; 43��00.12��� N, 11��57.67��� W; 1706 m; 29 Jul. 2011; BANGAL 0711 V2; MNCN ��� 3 sh; 42��56.77��� N, 11��58.53��� W; 1631 m; 2 Aug. 2011; BANGAL 0711 V5; MNCN ��� 10 spm, 40 sh; 42��41.87��� N, 11��26.71��� W; 1720 m; 8 Aug. 2011; BANGAL 0711 V10; MNCN. Remarks Numerous living specimens from 0.4 to 1.7 mm of a Lepetella species were found at depths of 1706 m (V2) and 1720 m (V10), attached to the external surface of empty tubes of the onuphid polychaete Hyalinoecia tubicola (M��ller, 1776), which is common on deepest (1470���1809 m) sedimentary bottoms of the GB (Serrano et al. 2017a). Dantart & Luque (1994), Lima et al. (2015) and Hoffman et al. (2019b) have described some new species of Lepetella in different areas of the Atlantic, and the latter authors mention the possible presence of the dubious taxon L. ionica Nordsieck, 1973 in the GB. Nevertheless, a comparative anatomical and molecular study of these deep-water specimens and specimens of N Atlantic shallower water species of Lepetella is necessary to ascertain if they belong to a different and perhaps undescribed species., Published as part of Gofas, Serge, Luque, ��ngel A., Oliver, Joan Daniel, Templado, Jos�� & Serrano, Alberto, 2021, The Mollusca of Galicia Bank (NE Atlantic Ocean), pp. 1-114 in European Journal of Taxonomy 785 (1) on page 27, DOI: 10.5852/ejt.2021.785.1605, http://zenodo.org/record/5798418, {"references":["Serrano A., Cartes J. E., Papiol V., Punzon A., Garcia-Alegre A., Arronte J. C., Rios P., Lourido A., Frutos I. & Blanco M. 2017 a. Epibenthic communities of sedimentary habitats in a NE Atlantic deep seamount (Galicia Bank). Journal of Sea Research 130: 154 - 165. https: // doi. org / 10.1016 / j. seares. 2017.03.004","Dantart L. & Luque A. 1994. Cocculiniformia and Lepetidae (Gastropoda: Archaeogastropoda) from Iberian waters. Journal of Molluscan Studies 60: 277 - 313. https: // doi. org / 10.1093 / mollus / 60.3.277","Lima S. F. B., Guimaraes C. R. P. & Simone L. R. L. 2015. Lepetella furuncula sp. nov. (Vetigastropoda: Lepetelloidea): the first species of the genus discovered in the South Atlantic Ocean (northeastern Brazil). Bulletin of Marine Science 92: 257 - 262.","Hoffman L., Lavaleye M. S. S., Freiwald A. & van Heugten B. 2019 b. Lepetella (Gastropoda: Lepetellidae) in deep-water coral habitats in the North Atlantic. Miscellanea Malacologica 8 (1): 19 - 26."]}

Genus Anekes Bouchet & War��n, 1979 Type species Anekes undulisculpta Bouchet & War��n, 1979, by original designation., Published as part of Gofas, Serge, Luque, ��ngel A., Oliver, Joan Daniel, Templado, Jos�� & Serrano, Alberto, 2021, The Mollusca of Galicia Bank (NE Atlantic Ocean), pp. 1-114 in European Journal of Taxonomy 785 (1) on page 48, DOI: 10.5852/ejt.2021.785.1605, http://zenodo.org/record/5798418

Policordia sp. Fig. 39G Material examined GALICIA BANK ��� 3 spm, 1 sh; 42��41.87��� N, 11��26.71��� W; 1720 m; 8 Aug. 2011; BANGAL 0711 V10; MNCN. Remarks This second species differs in being less inflated and having an outline with a more produced posterior end, resulting in that the shell is longer than high (higher than long in P. gemma). Whereas our specimens agree in shape and size with the specimens from the Porcupine Sea Bight (1630���1640 m) illustrated on the NMW website (Oliver et al. 2016), we are reluctant to confirm this identification taking into account the taxonomic uncertainty surrounding P. atlantica. Families Cuspidariidae Dall, 1886, Halonymphidae Scarlato & Starobogatov, 1983 and Protocuspidariidae Scarlato & Starobogatov, 1983, Published as part of Gofas, Serge, Luque, ��ngel A., Oliver, Joan Daniel, Templado, Jos�� & Serrano, Alberto, 2021, The Mollusca of Galicia Bank (NE Atlantic Ocean), pp. 1-114 in European Journal of Taxonomy 785 (1) on page 86, DOI: 10.5852/ejt.2021.785.1605, http://zenodo.org/record/5798418, {"references":["Oliver P. G., Holmes A. M., Killeen I. J. & Turner J. A. 2016. Marine Bivalve Shells of the British Isles. Amgueddfa Cymru - National Museum Wales. Available from http: // naturalhistory. museumwales. ac. uk / britishbivalves [accessed 7 Mar. 2021]."]}

Yoldiella valorousae Killeen & J.A. Turner, 2009 Fig. 32I���J Material examined GALICIA BANK ��� 2 spm, 2 sh; 43��00.12��� N, 11��57.67��� W; 1706 m; 29 Jul. 2011; BANGAL 0711 V2; MNCN ��� 2 sh, 1 v; 42��56.77��� N, 11��58.53��� W; 1631 m; 2 Aug. 2011; BANGAL 0711 V5; MNCN ��� 1 v; 42��41.87��� N, 11��26.71��� W; 1720 m; 8 Aug. 2011; BANGAL 0711 V10; MNCN ��� 1 v; 42��32.16��� N, 12��03.79��� W; 1585 m; 5 Aug. 2011; BANGAL 0711 DR12; MNCN. Remarks There is a complicated nomenclatural and taxonomic history for the small Yoldiella species originally described by Jeffreys (1876) as Leda lata, from abyssal depths of the North Atlantic. The name is a secondary homonym of Nucula lata Hinds, 1843, for which reason it was renamed Leda jeffreysi Hidalgo, 1877. Allen et al. (1995) considered that Jeffreys��� type material comprised two different species; they used the preoccupied name Yoldiella lata for one of them and the replacement name Yoldiella jeffreysi for the other one, disregarding the nomenclatural rule (ICZN Art. 72.7) which makes them objective synonyms. The nomenclatural flaw was fixed by Killeen & Turner (2009), who endorsed the specific distinction, based Yoldiella jeffreysi on the lectotype of Y. lata (USNM 199696, from ���Valorous��� stn 16, west of Rockall Plateau, 1785 fms [3265 m]) designated by Allen & Hannah (1989) for their concept of Yoldiella jeffreysi, and named Yoldiella valorousae the second species (treated as ��� Yoldiella lata ��� in Allen & Hannah 1989), based on a shell (USNM 199695) from ���Valorous��� stn 9, off S Greenland, 1750 fms [3200 m]. Allen & Hannah (1989) and Killeen & Turner (2009) reported both species as widespread in the North Atlantic. Both species are similar in outline but Y. valorousae differs from Y. jeffreysi in being more compressed. Family Pristiglomidae Sanders & Allen, 1973, Published as part of Gofas, Serge, Luque, ��ngel A., Oliver, Joan Daniel, Templado, Jos�� & Serrano, Alberto, 2021, The Mollusca of Galicia Bank (NE Atlantic Ocean), pp. 1-114 in European Journal of Taxonomy 785 (1) on pages 76-78, DOI: 10.5852/ejt.2021.785.1605, http://zenodo.org/record/5798418, {"references":["Allen J. A., Sanders H. L. & Hannah F. 1995. Studies on deep-sea Protobranchia (Bivalvia). The subfamily Yoldiellinae. Bulletin of the British Museum (Natural History) Zoology Series 61 (1): 11 - 90.","Killeen I. J. & Turner J. A. 2009. Yoldiella and Portlandia (Bivalvia) from the Faroe-Shetland Channel and Rockall Trough, northeast Atlantic. Journal of Conchology 39 (6): 733 - 778.","Allen J. A. & Hannah F. J. 1989. Studies on deep-sea Protobranchia (Bivalvia). The subfamily Ledellinae (Nuculanidae). Bulletin of the British Museum (Natural History), Zoology Series 55 (2): 123 - 171.","Sanders H. L. & Allen J. A. 1973. Studies on deep-sea Protobranchia (Bivalvia) Prologue and the Pristiglomidae. Bulletin of the Museum of Comparative Zoology, Harvard 145 (6): 237 - 262. Available from https: // www. biodiversitylibrary. org / page / 4336413 [accessed 7 Mar. 2021]."]}

Anatoma richardi (Dautzenberg & H. Fischer, 1896) Fig. 7A���I Scissurella richardi Dautzenberg & H. Fischer, 1896: 487; pl. 21 figs 2���3. Anatoma richardi ��� Geiger 2012: 1108. ��� Ortega & Gofas 2019: 518���519. Material examined GALICIA BANK ��� 1 spm, 32 sh; 42��52��� N, 11��51��� W; 985���1000 m; 20 Oct. 1987; SEAMOUNT 1 DW116; MNHN ��� 3 spm; 42��49.13��� N, 11��46.59��� W; 903 m; 4 Aug. 2011; BANGAL 0711 GOC6; MNCN. Remarks Ortega & Gofas (2019) used this name for the Anatoma species which is common at depths less than 1000 meters in the Canary Islands, and concluded that the synonymy with Scissurella tenuis Jeffreys, 1877 proposed by Geiger (2012) was not warranted. The latter, with an abyssal type locality in the northwest Atlantic, differs by the configuration of the early whorls and the habitat. Anatoma richardi, originally described from off the Azores Islands in 1360 m, is also found on GB. In A. richardi, the suture of the body whorl may be more or less detached from the selenizone of the previous whorl (the ���sutsel��� in Geiger 2012), whereas in A. tenuis the suture is reported as always adjusted to it. Anatoma tenuisculpta (Seguenza, 1880), described from the Pleistocene of southern Italy and recorded as living in the Alboran Sea and Ibero-Moroccan Gulf and in several localities off NW Europe (H��isaeter & Geiger 2011; Geiger 2012), also belongs to this species group but is distinguished by having a higher profile with the last whorl even more clearly separated from the selenizone. We have never seen any locality with A. richardi and A. tenuisculpta sympatric and separable, and the possibility that they represent morphological variation in a single species should be investigated. Some specimens from GB (Fig. 7G���I), here reported as A. cf. richardi, are rather stunted with a rather wide sutsel, but could not be convincingly delimited from typical A. richardi., Published as part of Gofas, Serge, Luque, ��ngel A., Oliver, Joan Daniel, Templado, Jos�� & Serrano, Alberto, 2021, The Mollusca of Galicia Bank (NE Atlantic Ocean), pp. 1-114 in European Journal of Taxonomy 785 (1) on pages 36-39, DOI: 10.5852/ejt.2021.785.1605, http://zenodo.org/record/5798418, {"references":["Geiger D. L. 2012. Monograph of the Little Slit Shells. Santa Barbara Museum of Natural History, Santa Barbara.","Ortega J. & Gofas S. 2019. The unknown bathyal of the Canaries: new species and new records of deepsea Mollusca. Zoosystema 41 (26): 513 - 551. https: // doi. org / 10.5252 / zoosystema 2019 v 41 a 26","Hoisaeter T. & Geiger D. L. 2011. Species of Anatoma (Gastropoda: Anatomidae) in Norwegian and adjacent waters, with the description of two new species. The Nautilus 125 (3): 89 - 112."]}