26 AUSTRALIAN HALACOSTEACA. 



depressed ; an obscure pointed tubercle about the middle of the 

 lateral margin ; postero-lateral and posterior margins with five 

 small teeth on each side. Rostrum quite perpendicularly deflexed, 

 the apex slightly indexed, terminating in four rounded lobes, the 

 two internal narrower and projecting further forward than the 

 two external, separated from one another by a triangular interval, 

 and from the outer pair by a shallow open sinus. Orbital fissures 

 linear. Anterior limbs very small, the arm carinated above, the 

 carina armed distally with two acute teeth ; wrist and hand 

 smooth — the latter compressed, fringed with hairs, the third 

 joint with sharp minutely toothed anterior and posterior borders. 

 Length five lines ; breadth four lines. 



Port Denison, five fathoms. 



42. Micippa spinosa. A.M. 



Micippa spinosa, Stimpson, Proc. Acad. Nat. Sei. Philad., 

 p. 218 (1857). 



Paramicippa spinosa, Miers, Cat. Crust. N.Z., p. 9 (1876) ; 

 Haswell, Proc. Linn. Soc. N.S.W., Vol. iv., p. 447. 



Carapace depressed, unequal above, closely tuberculated and 

 setose. Dorsal spines few, long, slender, obtuse at apex, three 

 in the median line, of which two are upon the gastric, and one 

 largest, upon the cardiac segion. A large spine upon the 

 branchial region, between which and the post-orbital tooth are 

 nine spines on the lateral margin. Posterior margin spinulose. 

 Eostrum dilated at the extremity, with the margins broadly 

 rounded, margin crenulate, two median divergent teeth. Orbits 

 bi-fissate above, the inner fissure shut, the outer open. Ptery- 

 gostomian region convex and tuberculated, not setose. Anterior 

 legs very small, hand and wrist obsoletely granulated. Ambula- 

 tory legs compressed, densely pilose, third joint with a small 

 terminal spine above. [St.] 



Port Jackson ; Port Stephens. A very common species ; said 

 to occur also in New Zealand. 



43. Micippa affinis. 



Micippa affiinis, Miers, Ann. and Mag. Nat. Hist. (5), iv., p. 13. 



Carapace sub-oblong, deeply concave on the hepatic regions, 



surface uniformly and evenly granulated ; on the gastric regions 



