Ommatocarcinus, WHITE, 1852

Castro, Peter, 2007, A reappraisal of the family Goneplacidae MacLeay, 1838 (Crustacea, Decapoda, Brachyura) and revision of the subfamily Goneplacinae, with the description of 10 new genera and 18 new species, Zoosystema 29 (4), pp. 609-774 : 735

KEY TO SPECIES OF OMMATOCARCINUS WHITE, 1852

1. Conspicuous prominence on anterolateral borders of carapace. At least half of length of eye peduncles extends beyond outer orbital teeth (see Sakai 1976: fig. 286) .................. ................................................................................... Ommatocarcinus fibriophthalmus

— No prominence or teeth on anterolateral borders of carapace. Eye peduncles only extend slightly beyond outer orbital teeth or clearly extend beyond outer orbital teeth but by less than half (about third) of the length of peduncles (see Chen 1998: fig. 13-1) ............. 2

2. Meri of ambulatory legs (P2-P5) smooth, without dorsal, distal tooth ........................... ................................................................................................ Ommatocarcinus pulcher

— Merus of each ambulatory leg (P2-P5) with one dorsal, distal tooth ........................... 3

3. Carapace wide (cw 2.3 times cl). Cheliped merus with dorsal, median tooth ................. ....................................................................................... Ommatocarcinus macgillivrayi

— Carapace narrow (cw 1.8 times cl) (see Chen 1998: fig. 13-1). Cheliped merus smooth, without dorsal, median tooth ............................................. Ommatocarcinus granulatus