AUSTBALIAN MALACOSTKACA. 19 



30. Micippoides longimanus. A.M. 



Micippoides longimanus, Haswell, Proc. Linn. Soc. N.S."W., 

 Vol. iv., p. 444, pi. xxvi., fig. 5. 



Carapace elongate-triangular, gastric region dilated, armed 

 with eight tubercles, of which two are in the middle line behind, 

 (the last spiniform) and six (smaller), paired, in front ; cardiac 

 region prominent, with two or four large tubercles placed close 

 together; two prominent flattened tubercles on the posterior 

 margin, a short spine in the middle line immediately in front of 

 these, and forming with them an equilateral triangle ; branchial 

 regions dilated, with a few low tubercles. Rostrum inclined 

 obliquely downwards, more strongly deflexed in the female than 

 in the male — consisting of two rather short, triangular, pointed 

 ' cornua. Orbits with a single broad fissure above, separating 

 the upper orbital margin from the post-ocular spine. Basal 

 joint of the antennae broad, divided by a narrow mesial furrow, 

 bilobed at the extremity. A flattened prominence of irregular 

 outline on the sub-hepatic region, and two smaller ones behind, 

 one on the pterygostomial region, and the other on the margin 

 of the branchial region above the insertion of the first pair of 

 limbs ; a fourth small circular and flattened projection imme- 

 diately external to the base of the antennae. Anterior limbs 

 very large in the male, more than once and a half the length of 

 the rostrum, smaller in the female ; arm with a few scattered 

 tubercles ; wrist with two irregular keels above in both sexes ; 

 hand compressed, longitudinally furrowed; fingers about half 

 the length of the hand, meeting only near their tips, leaving a 

 narrow interspace. Second pair of legs as long as the carapace, 

 following pairs decreasing in length. Abdomen and ambulatory 

 limbs covered closely with short hairs. 



Port Jackson. 



G-enus Htastentjs, White. 



Carapace triangular, rounded behind. Spines of rostrum 

 long, divergent. Supra-ocular spine small or obsolete, directed 

 outward with a fissure above and below. Orbits small. Basal 

 joint of external antennae rather long, without spines at the 

 distal extremity. Anterior legs in the male unarmed, not nearly 



