90 AUSTRALIAN MALACOSTEACA. 



Ambulatory legs with a very small spine, sometimes obsolete, 

 near the distal end of the upper margin of the merus. Length 

 7 lines ; breadth at second marginal tooth 13 lines. [Miers.~\ 



Australia (Brit. Museum). 



156. Macrophthalmus latifrons. A.M. 



Macroplithalmus latifrons, Haswell, 1. c. 



Carapace about once and a half as broad as long ; surface very 

 finely granulate. Front broad, about one-fourth of the total 

 breadth. Orbits nearly transverse. Lateral borders arched, 

 with three teeth separated by deep fissures, the first two broad, 

 the third small. Anterior limbs in the male very large, finely 

 granular like the carapace ; hand unarmed, with a granular raised 

 line on the outer surface near the lower border. Immobile 

 finger much bent downwards, regularly denticulated on its inner 

 edge ; inner edge of mobile finger with a denticulated elevation 

 near the base. Inner surface of the arm, edge of carapace, and 

 basal joints of legs, with scattered slender hairs ; a thicker 

 coating on the fourth and fifth joints of the ambulatory legs. 

 Length of carapace fths inch ; greatest breadth 1-J-th inch. 



Port Philip. 



Genus Ommatocarcinus, "White. 



Carapace much wider than long, the antero- lateral angles 

 prolonged into a prominent, laterally-directed spine ; interocular 

 region narrow ; eye peduncles very long. Third joint of the 

 maxillipedes wider than long. Chelipedes more than twice the 

 length of the carapace. 



157. Ommatocarcinus MacGKUivrayi. 



Ommatocarcinus Mac Gill ivrayi, White, Yoy. of the "Rattle- 

 snake," Append., p. 393, pi. v., fig. 1. 



Carapace more than twice as wide as long. Eyes extending a 

 little beyond the lateral spines. Chelipedes two and a half times 

 the length of the carapace; arm long, trigonal, covered with 

 papillae above, and having a nearly obliterated spine about the 

 middle ; wrist smooth, roundish, with a large blunt tooth on the 

 inside ; hands somewhat flattened, widest at the base of the 

 claws, with a broad ridge on the inside, the edge of it rough with 



