Macrophthalmus crinitus, Rathbun, 1913

Barnes, R. S. K., 2010, A Review Of The Sentinel And Allied Crabs (Crustacea: Brachyura: Macrophthalmidae), With Particular Reference To The Genus Macrophthalmus, Raffles Bulletin of Zoology 58 (1), pp. 31-49 : 41

The M. crinitus group

In M. crinitus Rathbun, 1913 , M. darwinensis Barnes, 1971 , and M. pacificus Dana, 1851 ( Fig. 3C ) the front is relatively broad and unconstricted, the central region of epistome is straight, the characteristic longitudinal ridges of the branchial regions are poorly marked, and the fingers of the male chela are short, with an undeflexed index. The specimen described by Pretzmann (1974) as M. pacificus tjiljapensis in fact belongs to M. definitus in the other subgroup of Mareotis .

Figures

Fig. 3. Form of the carapace and adult male chela of subgroups of the genus Macrophthalmus III: (a, b) the subgenus Macrophthalmus part 2, M. transversus (a) and Macrophthalmus dentatus (b); (c) the M. crinitus group of the subgenus Mareotis. Scale bars = 5mm.