STALK-EYED CRUSTACEA 409 



B. Rostrum triangular : — 



3. Munidopsis nitida. 



Munidopsis nitida ... A. Milne Edwards, A. Milne 



Edwards and Bouvier. 



Munidopsis brevimana . . Henderson. 



Orophorhynchus nitidns 1 ^ ,^., ^, 



^ , : , . \. A. Milne Edwards. 



OropJwrliynchus spinosus) 



The rostrum is straight and sharp, with its lateral 

 edges spiny ; a keel above. The eye-stalks are produced 

 into two slender lateral spines. There are two small 

 spines placed symmetrically upon the gastric region. 

 The fourth and fifth joint of the walking legs and of the 

 pincers have spines. Abdominal segments are compara- 

 tively smooth ; a few granulations on the posterior ones. 

 The second, third, and fourth each bear a curved trans- 

 verse sulcis, the convexity of which is directed forwards. 



Range. — Dominica, Guadaloupe. 



4. Munidopsis spinoculata. 



Munidopsis spinoculata . . A. Milne Edwards and 



Bouvier. 

 OrophorhyncJius spi)iocnlatus . A. Milne Edwards. 



The carapace is rough, with a subantennary spine on 

 each side in front. The antero-lateral angle is sharp. 

 There is a short spine on the hepatic region. The dorsal 

 surface has two rough lines. The rostrum is keeled above. 

 The eyes do not move. The eye-peduncle is prolonged 

 into a large and sharp spine that reaches half of the 

 length of the rostrum. The abdomen has no spines. 

 The pincers are very short ; they have a spine on the 

 inside, towards the extremity of the arm. 



Range. — Dominica. 



