Camatopsis leptomerus Ng and Castro, 2016

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 : 176

Camatopsis leptomerus Ng and Castro, 2016

( Fig. 14G–H )

Material examined. RV Hakuhō Maru KH-72-1 Cruise, sta. 42, 1 8 (CB 5.5×CL 4.8 mm), NSMT-Cr 30941.

Remarks. The genus Camatopsis was revised by Ng and Castro (2016) who referred the forma A and B of the Siboga specimens defined by Tesch (1918) to one known species C. rubida , and three new species C. minor , C. leptomeru s and Microtopsis teschi , and furthermore, amended the records of C. rubida from Japan and Taiwan ( Yokoya, 1933; Sakai, 1939, 1965, 1976; Takeda, 1973b; Fang, 1991; Hsueh and Huang, 2002; Komai et al., 2012) to those of a new species C. thula . Camatopsis thula is most characteristic in having the shortest and stoutest ambulatory meri among its congeners. The specimen at hand ( Fig. 14G–H ) is female, so that the Gl is not available for definite identification, but the ambulatory legs are slenderer than those of congeners, with the overall appearance agreeing well with the photographs of C. leptomerus given by Ng and Castro (2016) who examined numerous specimens from many localities.

Distribution. The type locality is the Bohol Sea in the Philippines, 627–645 m in depth, and the other localities recorded by Ng and Castro (2016) are in Taiwan (310–346 m), the Philippines (10–1,260 m), Malaysia, Indonesia (216 m), Papua New Guinea (80–447 m), Vanuatu (83– 394 m), and New Caledonia (200–700 m).

Figures

Fig. 14. A–F: Camatopsis rubida Alcock and Anderson, Ə (NSMT-Cr 30942; CB 10.1×CL 8.9mm) from sta. 52. A–B: Dorsal views in different photographic angle (A–B), frontal view (C), pleon (B), right (E) and left (F) chelae. G–H: Camatopsis leptomerus Ng and Castro, 8 (NSMT-Cr 30941; CB 5.5×CL 4.8mm) from sta. 42. Dorsal views in different photographic angle (G–H).