Search

We present the first DNA taxonomy publication on abyssal Mollusca from the Clarion-Clipperton Zone (CCZ), central Pacific ocean, using material collected as part of the Abyssal Baseline (ABYSSLINE) environmental survey cruise 'AB01' to the UK Seabed Resources Ltd (UKSRL) polymetallic-nodule exploration area 'UK-1' in the eastern CCZ. This is the third paper in a series to provide regional taxonomic data for a region that is undergoing intense deep-sea mineral exploration for high-grade polymetallic nodules. Taxonomic data are presented for 21 species from 42 records identified by a combination of morphological and genetic data, including molecular phylogenetic analyses. These included 3 heterodont bivalves, 5 protobranch bivalves, 4 pteriomorph bivalves, 1 caudofoveate, 1 monoplacophoran, 1 polyplacophoran, 4 scaphopods and 2 solenogastres. Gastropoda were recovered but will be the subject of a future study. Seven taxa matched published morphological descriptions for species with deep Pacific type localities, and our sequences provide the first genetic data for these taxa. One taxon morphologically matched a known cosmopolitan species but with a type locality in a different ocean basin and was assigned the open nomenclature 'cf' as a precautionary approach in taxon assignments to avoid over-estimating species ranges. One taxon is here described as a new species, Ledella knudseni sp. n. For the remaining 12 taxa, we have determined them to be potentially new species, for which we make the raw data, imagery and vouchers available for future taxonomic study. The Clarion-Clipperton Zone is a region undergoing intense exploration for potential deep-sea mineral extraction. We present these data to facilitate future taxonomic and environmental impact study by making both data and voucher materials available through curated and accessible biological collections.

Esta memoria de tesis doctoral se centra en el estudio de 242 ejemplares de la familia Pruvotinidae Heath, 1911 procedentes de los sustratos duros de los fondos batiales de Galicia, recolectados durante varias campañas oceanográficas realizadas por la Estación de Bioloxía Mariña da Graña (USC). Para el estudio de la anatomía interna se aplicaron técnicas clásicas de reconstrucción y en 5 especies ya descritas presentes en Galicia se complementó la información con reconstrucciones en 3D. Como resultados se describieron 7 especies nuevas, 1 del género Pararrhopalia Simroth 1893, 4 del género Pruvotina Cockerell, 1903 y 2 del género Labidoherpia Salvini-Plawen, 1978. Además se incluye el género Forcepimenia Salvini-Plawen, 1978 dentro de la subfamilia Halomeniinae Salvini-Plawen, 1978 y se propone una nueva subfamilia Schelmatiinae. Finalmente se realiza un estudio zoogeográfico para conocer los patrones de distribución de las especies de la familia Pruvotinidae en los fondos duros batiales de Galicia.

The family Pruvotinidae (Solenogastres, Cavibelonia) includes thirty species of fifteen genera grouped in five subfamilies. These subfamilies are defined by the combination of the presence or absence of hollow hook-shaped sclerites, the presence or absence of a dorsopharyngeal gland and the type of ventrolateral foregut glandular organs: type A, type C or circumpharyngeal. In this paper, three new species of the family Pruvotinidae are described: Pruvotina artabra n. sp. and Gephyroherpia impar n. sp. from NW Spain, and Pruvotina manifesta n. sp. from Antarctic Peninsula. These new descriptions increase the global knowledge of Solenogastres biodiversity.

The class Solenogastres (sensu Salvini-Plawen, 1967) includes approximately 270 described species, 30% of which can be found off the Atlantic and Mediterranean coasts of Europe. From the Iberian Peninsula, 36 species are known, and six are cited from the Southern Peninsula from Gorringe Bank to Cabo de Gata. The results of a study of a collection of 81 specimens are presented here. Solenogastres were collected from seafloors off the South Iberian Peninsula during three expeditions: DEEPER [Desarrollo de Estudios de Ecosistemas de Profundidad bajo un Enfoque interdisciplinar] 0409, INDEMARES [Inventario y designación en la Red Natura 2000 en áreas marinas del Estado Español]/Chica 0610–0211 and INDEMARES/Alborán 0911. Analysis of the collected solenogaster specimens resulted in the discovery of a new species, which is described here as Alexandromenia avempacensis sp. nov, along with the identification of four already known species: Unciherpia hirsuta, which had not been reported from the South of the Peninsula before and Neomenia carinata, Anamenia gorgonophila and Dorymenia sarsii, whose presence in this area was already known. New anatomical and ecological data regarding these species are also provided. The anatomical reconstruction of the anterior and posterior body ends of Neomenia carinata is presented in addition to a more detailed and extensive description of its copulatory spicules. A broader and more complete description of the sclerites of this species is also provided. The study of the habitus, hard parts and histological sections of Dorymenia sarsii points towards a synonymy between D. sarsii and D. tortilis. Ecological data related to the accompanying fauna and the type of substratum for each species described is also provided., SI

Two specimens of Solenogastres belonging to the family Pruvotinidae recorded from the western Irish Sea are presented. Despite their immature state, they are described due to the poor knowledge of the Solenogastres fauna in that biogeographical area. One specimen can be defined as a new species tentatively classified within the genus Gephyroherpia Salvini-Plawen: G.(?) triangulata sp. nov. The second specimen probably represents a juvenile of Eleutheromenia sp.

Salvini-Plawen, Luitfried von (2008): Contributions to West European Cavibelonia (Mollusca, Solenogastres) with two new species. Zoosystema 30 (4): 873-897, DOI: http://doi.org/10.5281/zenodo.4525775, {"references":["GARCIA- ALVAREZ O., URGORRI V.&SALVINI- PLAWEN L. VON 2000. - Sputoherpia galliciensis, a new species from off Galicia (Mollusca, Solenogastres: Amphimeniidae). Ophelia 53: 181-188.","HANDL C. & SALVINI- PLAWEN L. VON 2002. - New records of Solenogastres-Cavibelonia (Mollusca) from Norwegian nords and shelf waters including three new species. Sarsia 87: 423-450.","HASZPRUNAR G. 2000. - Is the Aplacophora monophyletic? A cladistic point of view. American Malacological Bulletin 15: 115-130.","HEATH H. 1911. - Reports on the scientific results of the expedition to the tropical Pacific, XIV. The Solenogastres. Memoirs of the Museum of Comparative Zoology at Harvard College 45 (1): 1-179.","ICZN 1981. - Opinion 1185. Simrothiella Pilsbry, 1898 (Mollusca, Solenogastres): Designation of a type species. Bulletin of Zoological Nomenclature 38 (3): 185-187.","ICZN 1999. - International Code of Zoological Nomenclature. The International Trust for Zoological Nomenclature, London, 306 p.","KOREN J. & DANIELSSEN D.C. 1877. - Beskrivelse over nye arter, henhOrend til slaegten Solenopus, samt nogle oplysninger om dens organisation. Archiv for Mathematik og Naturvidenskab (Christiana) 2: 121-128 (in Norwegian, translated into English in 1879: Descriptions of new species belonging to the genus Solenopus, with some observations on their organisation.Annals and Magazine of Natural History ser. 5, 3 (17): 321-328).","LELOUP E. 1946. - Alexandromenia grimaldii sp. nov., Solenogastre bathypelagique. Bulletin du Musee royal d'Histoire naturelle de Belgique 22 (16): 1-12.","LELOUP E. 1949. - Meromenia hirondellei g. nov., sp. nov., Solenogastre du Golfe de Gascogne. Bulletin de l'Institut royal des Sciences naturelles de Belgique 25 (1): 1-6.","NIERSTRASZ H. 1909. - Die Amphineuren. I. Die Solenogastren.Ergebnisse und Fortschritte der Zoologie 1: 239-306.","ODHNER N. 1921. - Norwegian Solenogastres. Bergens Museums Aarbok 1918-1919 3: 1-86.","PRUVOT G. 1891. - L'organisation de quelques Neomeniens des cotes de France. Archives de Zoologie experimentale et generale, ser. 2, 9: 699-810.","PRUVOT G. 1902. - Sur les affinites et le classement des Neomeniens. Archives de Zoologie experimentale et generale, ser. 3, 10 (Notes et Revue 2): XVII- XXVII."]}