Species of Maioid Crustacea. 13 



cephalotliorax the granulated crests mentioned by A. Milne- 

 Edwards. Moreover these specimens differ very remarkably 

 in the form of the rostrum from one another. In the female 

 the gastric region is very convex and the rostral spines de- 

 flexed and short, as in the other species of Pseudomicippe, 

 whereas in the male they are much longer, slender, and nearly 

 horizontal. The anterior legs, as usual in the male sex, are 

 more developed, palm larger and compressed. It seems scarcely 

 possible that these specimens, which were collected on the 

 same occasion and at the same locality, can belong to distinct 

 species ; and if not, it is very remarkable that the deflexed 

 rostrum, which is one of the principal characters of the genus, 

 should fail in the male sex in this particular species. Length 

 of carapace to base of rostrum (in the male) 7 lines. 



Hob. Shark's Bay, Western Australia (H.M.S. l Herald 1 ). 



Paratnicippe affinis, sp. n. 



Carapace suboblong, deeply concave on the hepatic regions, 

 surface uniformly and evenly granulated ; on the gastric region 

 are two somewhat larger granules, placed one behind the 

 other, and followed by one on the cardiac region ; there is also 

 one on each branchial region ; the lateral and posterior margins 

 are granulated ; the fissures of the upper orbital margins are 

 very small ; the rostrum is broad, spatulate, obliquely de- 

 flexed, with a small triangular notch at its distal end, and 

 with its antero-lateral angles rounded, without teeth or 

 spines. The anterior legs (in the female) are very small and 

 smooth ; the ambulatory legs are densely hairy. Length 

 about 6 lines. 



Hah. Bass's Straits (H.M.S. ' Challenger '). 



The single example (a female) was found among the 

 ' Challenger ' collection of fishes, and is very nearly allied to 

 P. platipes, Riippell, with which P. bicarinata, Ad. & White, 

 and Micippe hirtipes, Dana, are probably identical. It differs 

 in its more evenly granulated carapace, the absence of the 

 spine on the antero-lateral margins of the rostrum, and the 

 more densely hairy legs. 



Micippe parvirostris, sp. n. (PI. IV. fig. 9.) 



Carapace triangulate-oblong, narrowing anteriorly ; its 

 whole surface covered with close-set but very prominent 

 granules, which tend to become small spinules ; rostrum com- 

 posed of two very small, truncated, subvertically deflexed 

 spines. The lateral margins are armed with six spines, in- 

 cluding the postocular, which is bifid. The sides of the body, 

 beneath the lateral marginal spines, are granulated, like the 



