Macrophthalmus (Macrophthalmus) parvimanus Guérin-Méneville, 1834

Rahayu, Dwi Listyo & Nugroho, Dharma Arif, 2012, The Indonesian species of Macrophthalmus Desmarest, 1823, with the description of a new species (Crustacea: Decapoda: Brachyura: Macrophthalmidae), Zootaxa 3158, pp. 20-36 : 25-26

Macrophthalmus (Macrophthalmus) parvimanus Guérin-Méneville, 1834

( Figs. 2 G, H)

Macrophthalmus parvimanus Guérin-Méneville, 1834: 7 , pl. 4, fig. 1.

Macrophthalmus (Macrophthalmus) parvimanus — Barnes 1970: 211, fig. 2; 2010: 35 (key). Macrophthalmus parvimanus — Poupin 1997:160, figs. 1A, B, 2, 3A, B, 4.

Material examined. 1 male (4.30 x 8.10 mm), 1 female (5.30 x 10.4 mm) ( MZB Cru 3270), Ekas, Lombok, 20.05.2007; 3 males (4.90 x 5.40 mm – 6.65 x 11.08 mm) (RCLA-C.B.0259), Sekotong, Lombok, 16.05.2007.

Remarks. The affinities of this species with M. convexus have been discussed by Komai et al. (1995) and Poupin (1997). The specimens in this study are smaller than those studied by these authors but the morphology of male G1 is the same as the Indo-Malaysian form i.e. the apical chitinous process of male G1 is pointed medially ( Poupin 1997: fig. 3A, B).

Habitat. Muddy substrates of mid intertidal zone in protected bays near seagrass beds.

Geographical distribution. Widely distributed in the Indo-West Pacific, from the east coast of Africa to Salomon Islands ( Komai et al. 1995). In Indonesia it was recorded from Banda in Maluku ( Poupin 1997), and now Lombok.

Figures

FIGURE 2. A, B, Macrophthalmus (Macrophthalmus) abbreviatus Manning & Holthuis, 1981, male (12.19 x 23.19 mm) (RCLA-C. B. 0253); C, D, Macrophthalmus (Macrophthalmus) brevis (Herbst, 1804), male (8.96 x 17.60 mm) (RCLA- C. B. 0254); E, F, Macrophthalmus (Macrophthalmus) sulcatus malaccensis Tweedie, 1937, male (7.34 x 16.71 mm) (RCLA- C. B. 0278); G. H. Macrophthalmus (Macrophthalmus) parvimanus Guérin-Méneville, 1834, male (6.65 x 11.08 mm) (RCLA- C. B. 0259).