Macrophthalmus

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 : 34-35

Macrophthalmus (Ven i tu s) latreillei (Desmarest, 1877)

( Fig. 8 E, F)

Gonoplax latreillei Desmarest, 1922: 99 , pl. 9, fig. 1, 4.

Macrophthalmus (Venitus) latreille — Barnes 1967: 232, pl. 3 c, fig. 11; 1971: 31.

Material examined. 2 males (13.82 x 18.00 mm – 28.00 x 36.00 mm), 1 female (21.50 x 25.10 mm) ( MZB Cru 3280), Kamora, Papua, 25.06.2008; 2 males (20.79 x 28.84 mm, 26.8 x 38.5 mm), 1 female (24.50 x 34.40 mm), 1 ovig. (21.20 x 28.10 mm), Port Site, Timika, Papua, 0 8.07.2008 (RCLA-C.B.0277); 1 male, 14.18 x 17.20 mm, Ajkwa, Papua, 02.04.2008; 1 male (8.50 x 10.36 mm), 4 females (8.18 x 9.45 mm – 12.91 x 12.91 mm), Ajkwa I., Papua, 22.06.2008 ( ZRC 2011.1007).

Remarks. This species is characterized by three prominent and one small anterolateral teeth, the heavily granular surface of the carapace and pereopods, deep carapace furrows particularly circumgastric, and thick setae that covers the inner surface of the fingers and upper distal part of the palm. Some male specimens in the collection have small chelipeds that resemble those of the females, and their carapace surface is only sparsely granular. Habitat. Muddy substrate along river banks in mangrove forests.

Geographical distribution. Widely distributed in the Indo-West Pacific from South Africa to the Philippines, Japan and Australia ( Barnes 1970). In Indonesia it was recorded from Halmahera, Maluku ( Tesch 1915) and Pulau Kaledupa, Sulawesi (Barnes 2010), and now Papua.

Figures

FIGURE 8. A, B, Macrophthalmus (Paramareotis) erato De Man, 1888, male (7.97 x 11.27 mm) (RCLA-C. B. 0274); C, D, Macrophthalmus (Paramareotis) quadratus A. Milne-Edwards, 1873, male (6.36 x 8.01 mm) (RCLA-C. B. 0276); E, F, Macrophthalmus (Venitus) latreille Desmarest, 1877, male (20.79 x 28.84 mm) (RCLA-C. B. 0277).