Torbenella calvata (Macpherson, 2006)

Torbenia calvata Macpherson, 2006: 678, fig. 4 (New Caledonia, 260–950 m).

Torbenella calvata – Baba 2008: 1021 (new combination). — Baba et al. 2008: 181 (compilation).

Diagnosis

Carapace with transverse ridges usually interrupted, except several on gastric region and posterior part of carapace; gastric region with 2 epigastric spines, behind supraocular spines, and several minute spines on each side; parahepatic, anterobranchial and postcervical spines present on each side. Anterolateral spine of carapace short, not reaching sinus between rostral and supracocular spines. Rostrum spiniform, less than half as long as remaining carapace, slightly carinated dorsally, straight, and slightly upwards directed. Abdominal somite 2 unarmed; posterior ridge of abdominal somite 4 unarmed. Thoracic sternite 3 wide, more than 3 times as wide as long. Antennal article 1 with unusually prolonged mesial process, not exceeding antennular peduncle, distolateral spine of article 2 very strong, exceeding article 3; article 3 with small distolateral spine; article 4 unarmed. P1–4 moderately long and slender; P2–4 dactyli with extensor margin slightly convex, slightly curving distally, each with 1–2 movable spinules on median portion of flexor margin.

Material examined

NEW CALEDONIA • 1 ♂ (4.6 mm); Chesterfield Islands, EBISCO stn DW2632; 21º03.655′ S, 160º44.673′ E; 297–378 m depth; 21 Oct. 2005; MNHN-IU-2013-19909 • 1 ov. ♀ (5.0 mm); KANADEEP stn CP4947; 24º08′ S, 159º37′ E; 275–276 m depth; 5 Sep. 2017; GenBank no.: COI: OP215688, 16S: OP196026, PEPCK: OP252562; MNHN-IU-2017-2839 • 1 ♂ (4.3 mm); KANADEEP stn CP4948, 24º07′ S, 159º40’ E; 275 m depth; 5 Sep. 2017; MNHN-IU-2017-2636.

Distribution

New Caledonia, Chesterfield Islands between depths of 260 and 950 m.