STALK-EYED CRUSTACEA 



73 



horns ; on each side of them there is the spine of the 

 basal joint of external antenna; nearly as large. 



In the male the first pair of legs is very robust ; the 

 hand is elevated and slightly compressed. In the female 

 these legs are frail, and the palm is almost cylindrical. 

 In both sexes the arm has on its upper surface about 

 three spines. The walking legs are large and short ; 

 those of the second pair are longer than the succeeding 

 pairs, they are armed on the fourth and fifth joint with 

 a series of sharp spines ; the other legs have none on 

 their fourth joint. 



Colour is brown-red ; the legs have a violet tint. 



Range. — Guadaloupe. 



2 Microphrys bicornutus. 



MicropJuys bicornutus 



Pisa galibica '\ 

 Pisa purpurea] 

 Onialacantha Jiirsuta 

 Pisa bicornuta . 

 Pericera bicorna 

 Pisa bicorna . . 

 Pericera bicornis 

 Milnia bicornuta 



Latreille, A. Milne Edwards, 

 Miers. 



Desbonne and Schramm. 



Streets, A. Milne Edwards. 



Latreille. 



H. Milne Edwards. 



Gibbes. 



Saussure, 



Stimpson. 



Carapace rounded behind, and without median spine 

 over the insertion of the abdomen ; covered with round 

 tubercles, armed with a small spine on each branchial 

 region, two small spines on the hepatic region, one small 

 spine on the epibranchial region, but otherwise few or 

 no spines. The rostral horns diverge from base, or may 

 converge at their tips. The superior orbital border 

 projects slightly at the angles, and is marked with two 



