Cryptopodia collifer Flipse, 1930

Ng, Peter K. L., Priyaja, P., Kumar, A. Biju & Devi, S. Suvarna, 2019, A collection of crabs (Crustacea, Brachyura) from the southwestern coast of India, with a discussion of the systematic position of Nectopanope Wood-Mason in Wood-Mason & Alcock, 1891 (Euryplacidae), ZooKeys 818, pp. 1-24 : 13

Cryptopodia collifer Flipse, 1930 Figs 6 D–F, 7 I–M

Cryptopodia collifer Flipse, 1930: 66, fig. 41; Serène 1968: 62 (list); Shen et al. 1982: 144, pl. 1 fig. 8; Dai et al. 1986: 160, pl. 21 fig. 8, text-fig. 91; Dai and Yang 1991: 176, pl. 21 fig. 8, text-fig. 91; Cai et al. 1994: 584 (list); Chiong and Ng 1998: 189, fig. 22; Davie et al. 2002: 322 (list); Ng and Davie 2002: 372 (list); Ng et al. 2008: 130 (list).

Material examined.

1 male (17.5 × 10.6 mm), 7°27.978'N, 77°32.297'E, 100 m.

Remarks.

Five species of Cryptopodia H. Milne Edwards, 1834, are known from India ( Trivedi et al. 2018): C. angulata H. Milne Edwards & Lucas, 1841, C. echinosa Chiong & Ng, 1998, C. fornicata (Fabricius, 1787), C. patula Chiong & Ng, 1998, and C. spatulifrons Miers, 1879b. The addition of C. collifer Flipse, 1930, not previously known from the Indian Ocean, is notable. Cryptopodia collifer Flipse, 1930, was described from a single female specimen from eastern Indonesia and has since been reported from China ( Shen et al. 1982). In an unpublished study, S.H. Tan and the first author examined specimen of this species from off Phuket, Philippines and Fiji, including males, and they agree well with the specimen obtained here from India, and as figured by Chiong and Ng (1998: fig. 22).

The lateral margins of the rostrum are straight in the holotype of C. collifer (cf. Chiong and Ng 1998: fig. 22A) but are gently convex in the present male (Fig. 6C), as was figured by Shen et al. (1982: pl. 1 fig. 8) for the Chinese specimen. The male telson of C. collifer is semi-circular in shape (Fig. 6D), and is distinct from the more triangular shapes of other Cryptopodia species (see Chiong and Ng 1998). The G1 structure of C. collifer is most similar to that of C. pan Laurie, 1906, from the Indo-West Pacific (cf. Chiong and Ng 1998: fig. 24A, B, D–K), but the latter species is easily distinguished by its third maxilliped being distinctly swollen ( Chiong and Ng 1998: fig. 23C). The third maxilliped of C. collifer , like those of other congeners, is quadrate and not inflated (Fig. 6D).