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Torbenella lupi sp. nov. urn:lsid:zoobank.org:act: FE41E3F0-3236-4B3D-AB95-CC190C43A233 Fig. 4 Torbenella aff. orbis 1. — Machordom et al. 2022: table 2. Etymology The name ‘ lupi ’ refers to one of the southern hemisphere constellations (the Wolf). Material examined Holotype PAPUA-NEW GUINEA • ov. ♀ (10.2 mm); KAVIENG stn CP4418; 02º27′ S, 150º40′ E; 335–340 m depth; 28 Aug. 2014; GenBank no.: COI: OP215693, 18S: OP196289, PEPCK: OP252566; MNHNIU-2014-10024. Paratypes PAPUA-NEW GUINEA • 3 ♂♂ (6.5–8.0 mm), 3 ov. ♀ (7.5–8.0 mm), 1 ♀ (5.9 mm); KAVIENG stn DW4495; 02º24′ S, 149º55′ E; 272–274 m depth; 6 Sep. 2014; MNHN-IU-2014-9900 • 1♀ (7.2 mm); KAVIENG stn CP4496; 02º25′ S, 149º54′ E; 269–274 m depth; 6 Sep. 2014; MNHN-IU-2014-13983. Description CARAPACE. Slightly wider than long. Transverse ridges usually interrupted, except several on gastric region and posterior part of carapace, with dense very short setae. Main transverse striae on posterior part of carapace interrupted in cardiac region. Scales and secondary striae absent between main striae. Gastric region with 2 main epigastric spines each behind supraocular spine; with row of 4–5 minute flanking spines and some small spines at base of rostrum and in parahepatic, hepatic and anterior branchial regions; one small postcervical spine on each side. Orbit with lateral limit weakly defined. Frontal margins concave. Lateral margins slightly convex. Anterolateral spine well developed, at anterolateral angle, reaching level of sinus between rostrum and supraocular spines. One or 2 very small marginal spines anterior to cervical groove. Branchial margins with 4 (rarely 5) small spines. Rostrum spiniform, less than half as long as remaining carapace, not exceeding end of corneae, carinated dorsally, straight, and directed slightly upwards. Supraocular spines barely reaching midlength of rostral spine and falling short of end of corneae, subparallel, directed slightly upwards. THORACIC STERNUM. Smooth, without striae, except a few on sternite 4. Sternite 3 2.5 times as wide as long; sternite 4 2.8 times as wide as long, and 2.3 times as wide as sternite 3. Anterior part of sternite 4 slightly narrower than sternite 3; anterior margin widely contiguous to sternite 3. ABDOMEN. Somites 2–4 with 2 median spines on anterior ridge; posterior ridge of somite 4 with small median spine. Somites 2–3 each with 3 transverse ridges and several scales in addition to anterior ridge. Somite 4 with a few striae. EYES. Eyes large, maximum corneal diameter 0.4 times distance between bases of anterolateral spines. ANTENNULE. Article 1 (distal spines excluded) about one-third carapace length, elongate, barely reaching end of corneae, with 2 short distal spines, mesial spine shorter than lateral spine; lateral margin unarmed, bearing numerous long plumose setae. ANTENNA. Article 1 with prolonged, strong mesial process exceeding antennular peduncle, lateral border with numerous long plumose setae; article 2 with 2 distal spines, distomesial longer than distolateral, barely reaching end of article 3; article 3 with distomesial spine, article 4 unarmed. MXP3. Ischium about 1.5 times length of merus, distoventrally produced to spine. Merus with welldeveloped median spine on flexor margin, extensor margin unarmed. P1. 2.5–3 times carapace length, squamous, with dense short setae on scales, with scattered long setae. Merus 1.3–1.5 times carpus length, armed with some mesial spines, distalmost strongest. Carpus slightly longer than palm, 3 times as long as wide, with several spines along mesial margin. Palm slightly longer than fingers, with few small spines on mesial border. Fingers unarmed, distally curving and crossing, ending in sharp point. P2–4. Moderately long and slender, squamous, with dense short setae on scales, with some long iridescent setae along extensor margins of all articles. P2 twice carapace length. Meri successively shorter posteriorly (P3 merus 0.8 times length of P2 merus, P4 merus 0.8 times length of P3 merus); P2 merus 0.8 times carapace length, 4.5–5.0 times as long as wide, 1.7 times as long as P2 propodus; P3 merus 4.0–4.5 times as long as wide, 1.5 times as long as P3 propodus; P4 merus 3.5–4.0 times as long as wide, 1.3 times as long as P4 propodus. Extensor margins of meri with row of small, proximally diminishing spines on P2–3, distal spine only on P4; flexor margins with distal spines followed proximally by several eminences; lateral sides unarmed. Carpi with several spines on extensor margin; flexor margin ending in blunt point. Propodi 4.0–4.5 times as long as wide; extensor margin unarmed; flexor margin with 4–5 slender movable spines, without fixed distal spine. Dactyli slender, length 0.9 times that of propodi; flexor margin with 2 median movable spinules; P2 dactylus 5.5 times as long as wide. Genetic data Partial genes of COI, 18S and PEPCK were successfully sequenced. As usual, the COI sequence showed the highest levels of divergence, 4.86% comparing T. aequabilis sp. nov. and T. orbis, and 15.42% to T. calvata. Torbenella lupi sp. nov. formed a well-supported cluster (pp = 1) with T. aequabilis and T. orbis (Fig. 7). Remarks The new species is morphologically closely related to T. orbis (Baba, 2005) and T. mensae sp. nov., sharing the presence of median spines on the anterior ridge of the abdominal somite 2. Characters distinguishing the three species are outlined under the Remarks of T. mensae (see below). Distribution Papua-New Guinea, between depths of 269 and 340 m.

Key to species of the genus Heteronida 1. Body densely granulated, with numerous large granules......................................... H. ceres sp. nov. – Body not densely granulated, with minute or small granules........................................................... 2 2. Rostrum without ridge in midline.................................. H. barunae Baba & de Saint Laurent, 1996 – Rostrum with longitudinal ridge in midline...................................................................................... 3 3. Branchial region of carapace with distinct elevation. Gastric process prominently high and anteriorly produced...................................................................................... H. aspinirostris (Khodkina, 1981) – Branchial region of carapace without elevation. Gastric process low and rounded......................................................................................................................... H. clivicola Macpherson & Baba, 2006

Heteronida aspinirostris (Khodkina, 1981) Bathymunida aspinirostris Khodkina, 1981: 1261, figs 1–5. Heteronida aspinirostris – Baba & de Saint Laurent 1996: 475, figs 3d–e, 23, 32d–f. — Baba 2005: 246. — Macpherson & Baba 2006: 451. — Baba et al. 2008: 81. Diagnosis Dorsal surface of carapace finely granulate; gastric process prominently high and anteriorly produced; branchial region with distinct elevation. Rostral and supraocular spines distinct, with longitudinal ridge in midline of rostrum reaching posteriorly to gastric process, anteriorly directed strongly upward. Abdominal somites 2–3 each with strong, median hump-like process and low lateral process on each side; somite 4 with smaller median process on each of anterior and posterior ridges. P1–4 granulate. Dactyli of P2–4 relatively stout, flexor margin with 6–10 spines, distal one rather close to tip, extensor margin with plumose setae. Material examined NEW CALEDONIA • 1 ♂ (3.2 mm); Chesterfield Islands, EBISCO stn DW2610; 19º33.147′ S, 158º40.618′ E; 486–494 m depth; 19 Oct. 2005; MNHN-IU-2013-19874. NEW CALEDONIA • 2 ♂♂ (3.0– 3.2 mm); EXBODI stn CP3830; 22°05′ S, 167°09′ E; 400–437 m depth; 8 Sep. 2011; MNHN-IU-2016-5792 • 1 ♂ (3.4 mm); EBISCO stn DW3906; 19°50′ S, 165°33′ E; 490–580 m depth; 23 Sep. 2011; MNHN-IU-2011-7018 • 1 ♀ (3.3 mm); EBISCO stn DW3925; 18°35′ S, 164°19′ E; 388 m depth; 26 Sep. 2011; MNHN-IU-2016-5790 • 2 ♂♂ (3.2–3.3 mm); EBISCO stn DW3926; 18°35′ S, 164°20′ E; 364–473 m depth; 26 Sep. 2011; GenBank no.: COI: OP215645, 16S: OP195984, 18S: OP196233, PEPCK: OP252457; MNHN-IU-2013-1920 • 1 ♂ (3.3 mm), 2 ♀♀ (3.1– 3.2 mm); EXBODI stn CP3927; 18°36′ S, 164°20′ E; 381 m depth; 26 Sep. 2011; MNHN-IU-2013-1972 • 1 ♂ (3.2 mm), 1 ov. ♀ (3.7 mm), 1 ♀ (3.3. mm); EBISCO stn DW3930; 18°37′ S, 164°26′ E; 448– 464 m depth; 26 Sep. 2011; MNHN-IU-2013-1663, MNHN-IU-2013-1662, MNHN-IU-2013-1660 • 4 ♂♂ (2.8–3.3 mm), 3 ov. ♀♀ (3.2–3.7 mm); EBISCO stn DW3937; 18°37′ S, 164°26′ E, 446–604 m depth; 27 Sep. 2011; MNHN-IU-2013-1788 to IU-2013-1790. Distribution Previously known from New Caledonia, Loyalty Islands, Pines Island, Norfolk Ridge, Chesterfield Islands, Vanuatu, and Tonga, between depths of 345 and 930 m. The present material was collected in New Caledonia and Chesterfield Islands, at depths of 364– 604 m., Published as part of Macpherson, Enrique, Rodríguez-Flores, Paula C. & Machordom, Annie, 2023, Integrative approach to describe new species of squat lobsters of the genera Heteronida Baba & de Saint Laurent, 1996 and Torbenella Baba, 2008 (Decapoda, Munididae) from the Southwestern Pacific Ocean, pp. 116-140 in European Journal of Taxonomy 860 (1) on pages 118-119, DOI: 10.5852/ejt.2023.860.2055, http://zenodo.org/record/7689432, {"references":["Khodkina I. V. 1981. A contribution to the fauna of the family Galatheidae (Decapoda) of the South-west Pacific. Zoologicheskii Zhurnal 8: 1261 - 1264. [In Russian with English summary and translation.]","Baba K. & de Saint Laurent M. 1996. Crustacea Decapoda: Revision of the genus Bathymunida Balss, 1914, and description of six new related genera (Galatheidae). In: Crosnier A. (ed.) Resultats des Campagnes MUSORSTOM 15. Memoires du Museum national d'histoire naturelle 168: 433 - 502.","Baba K. 2005. Deep-sea chirostylid and galatheid crustaceans (Decapoda: Anomura) from the Indo- West Pacific, with a list of species. Galathea Reports 20: 1 - 317.","Macpherson E. & Baba K. 2006. New species and records of small galatheids (Crustacea, Decapoda, Galatheidae) from the southwest and central Pacific Ocean. Zoosystema 28: 443 - 456.","Baba K., Macpherson E., Poore G. C. B., Ahyong S. T., Bermudez A., Cabezas P., Lin C. W., Nizinski M., Rodrigues C. & Schnabel K. E. 2008. Catalogue of squat lobsters of the world (Crustacea: Decapoda: Anomura - families Chirostylidae, Galatheidae and Kiwaidae). Zootaxa 1905: 1 - 220. https: // doi. org / 10.11646 / zootaxa. 1905.1.1"]}

Key to species of Torbenella 1. Second abdominal somite unarmed.................................................................................................. 2 – Second abdominal somite with 2 median spines on anterior ridge.................................................. 4 2. Thoracic sternite 3 wide, more than 3 times as wide as long. Posterior ridge of abdominal somite 4 unarmed. Anterolateral spine of carapace short, not reaching sinus between rostral and supracocular spines.................................................................................................. T. calvata (Macpherson, 2006) – Thoracic sternite 3 narrow, less than 3 times as wide as long. Posterior ridge of abdominal somite 4 usually with small median spine. Anterolateral spine of carapace well developed, barely reaching sinus between rostral and supracocular spines................................................................................. 3 3. Some transverse ridges of carapace uninterrupted. Abdominal somites 2–3 each with 3 transverse ridges in addition to anterior ridge.................................................................... T. aequabilis sp. nov. – All transverse ridges of carapace laterally or medially interrupted. Abdominal somites 2–3 each with 1 or 2 transverse ridges in addition to anterior ridge............................................. T. crateris sp. nov. 4. Antennal article 2 with distomesial spine strong, overreaching midlength of article 4. P2–4 dactyli armed with row of spinules on proximal two-thirds of flexor margin................................................ ............................................................................................................ T. insolita (Macpherson, 2004) – Antennal article 2 with distomesial spine of moderate size, reaching midlength of article 3. P2–4 dactyli unarmed or with a few spinules on proximal half of flexor margin...................................... 5 5. Thoracic sternite 3 wide, more than 3 times as wide as long. Posterior ridge of abdominal somite 4 unarmed................................................................................................................. T. mensae sp. nov. – Thoracic sternite 3 moderately wide, less than 3 times as wide as long. Posterior ridge of abdominal somite 4 usually with small median spine....................................................................................... 6 6. P2–4 dactyli slender, 7.5 times as long as wide; flexor margin unarmed ......... T. orbis (Baba, 2005) – P2–4 dactyli moderately slender, 5.5 times as long as wide; flexor margin with a few spinules on proximal half................................................................................................................ T. lupi sp. nov., Published as part of Macpherson, Enrique, Rodríguez-Flores, Paula C. & Machordom, Annie, 2023, Integrative approach to describe new species of squat lobsters of the genera Heteronida Baba & de Saint Laurent, 1996 and Torbenella Baba, 2008 (Decapoda, Munididae) from the Southwestern Pacific Ocean, pp. 116-140 in European Journal of Taxonomy 860 (1) on page 136, DOI: 10.5852/ejt.2023.860.2055, http://zenodo.org/record/7689432, {"references":["Macpherson E. 2004. Species of the genus Munida Leach, 1820 and related genera from Fiji and Tonga (Crustacea: Decapoda: Galatheidae). In: Marshall B. A. & Richer de Forges B. (eds) Tropical Deep-Sea Benthos 23. Memoires du Museum national d'histoire naturelle 191: 231 - 292.","Baba K. 2005. Deep-sea chirostylid and galatheid crustaceans (Decapoda: Anomura) from the Indo- West Pacific, with a list of species. Galathea Reports 20: 1 - 317."]}