Oxypleurodon sphenocarcinoides ( Rathbun, 1916 )

Arzivian, Arteen, Alrubaie, Ahmad, Yang, Jessica, Lin, Huiyu, Zhang, Eva & Leong, Rupert, 2022, Crabs (Crustacea, Decapoda) from the Seas of East and Southeast Asia Collected by the RV Hakuhō Maru (KH- 72 - 1 Cruise) 4. South China Sea, Bulletin of the National Museum of Nature and Science. Series A, Zoology 48 (4), pp. 147-191 : 159

Oxypleurodon sphenocarcinoides ( Rathbun, 1916)

( Fig. 3C–E )

Material examined. RV Hakuhō Maru KH-72-1 cruise, sta. 54, 1 Ə (CB 5.1 mm excluding lateral plates, PCL 8.8 mm), 1 ovig.8 (6.7× 11.6 mm), NSMT-Cr 30912; 1 ovig.8 (7.8× 12.7 mm), NSMT-Cr 30913; 1 8 (5.0× 8.3 mm), NSMT-Cr 30914.

Remarks. The specimens ( Fig. 3C–E ) examined agree well with the original description ( Rathbun, 1916), and the accounts ( Griffin, 1976; Richer de Forges and Ng, 2009). Oxypleurodon sphaenocarcinoides was already recorded from the Sulu Sea by Takeda et al. (2021) at a depth of 285– 306 m.

Distribution. The Philippines and the South China Sea; 93–306 m depth. The present record of O. sphenocarcinoides is the first for the South China Sea, and the bathymetric record of 760– 777 m is the deepest for the species.

Figures

Fig. 3. A: Dorhynchus rostratus (Sakai), 8 (NSMT-Cr 30908; CB 6.6×PCL 8.5mm) from sta. 54. B: Oncino- pus angustifrons Takeda and Miyake, Ə (NSMT-Cr 30909; CB 3.4×PCL 4.3mm) from sta. 48. C–E: Oxypleurodon sphaenocarcinoides (Rathbun), ovig.8 (NSMT-Cr 30913; CB 7.8×PCL 12.7mm) (C–D) from sta. 54; 8(NSMT-Cr 30914; 5.0×8.3mm) (E) from sta. 54.