Deep-sea spider crabs of the family Epialtidae MacLeay, 1838, from Papua New Guinea, with a redefinition of Tunepugettia Ng, Komai & Sato, 2017, and descriptions of two new genera (Crustacea: Decapoda: Brachyura: Majoidea) Author Lee, Bee Yan Author Forges, Bertrand Richer De Author Ng, Peter K. L. text Zootaxa 2019 2019-06-18 4619 1 1 44 journal article 26462 10.11646/zootaxa.4619.1.1 9aaf6711-748d-4067-a759-26d37802b7fc 1175-5326 3248363 CA6AEB18-2F97-449C-AE34-E1509DFFC841 Oxypleurodon sp. 2 ( Fig. 4 A–C) Material examined. 1 ovigerous female (14.0 × 9.7 mm ) (MNHN-IU- 2011-2802 ), 1 ovigerous female (13.3 × 9.1 mm ) ( ZRC 2018.1479, ex. MNHN-IU- 2011-2802 ), stn CP3646, 06°45’S 147°49’E , 460–485 m , coll. BIOPAPUA Expedition, 24 August 2010 . Remarks. The overall carapace morphology of O . sp. 2 is similar to O. stimpsoni . Compared to a topotypic specimen of O. stimpsoni , however, the differences are obvious: the branchial plates are sharp anteriorly in O. stimpsoni ( Lee et al . 2017 : fig. 2) (versus rounded with an indented anterior border in Oxypleurodon sp. 2; Fig. 4A ); the cardiac plate is ovate in O. stimpsoni ( Lee et al . 2017 : fig. 2) (versus with indented lateral expansions making it elliptical-shaped with irregular distal edges in Oxypleurodon sp. 2; Fig. 4A ); and there is only one slender ovate mesogastric plate in O. stimpsoni ( Lee et al . 2017 : fig. 2) (versus with one ovate mesogastric plate, which is constricted in the lower part and with two large gastric granules in Oxypleurodon sp. 2; Fig. 4A ). In O . alisae n. sp. , the pseudorostral spines are long with both spines appressed ( Figs. 1C , 2A ) (versus distinctly bifid in Oxypleurodon sp. 2; Fig. 4A ); and the branchial plate is more deeply indented in Oxypleurodon sp. 2 ( Fig. 4A ) than in O . alisae n. sp. ( Figs. 1C , 2A ). It is likely that these specimens belong to a new species of Oxypleurodon , but with only two female specimens on hand, more material, in particular male specimens, should be acquired before the species is formally described.