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male they are multisegmented and their basal segment bears a long for- 

 wardly directed denticle. 

 ^ The mandibles are narrow, with a small rectangular cutting plate 



which is denticulate on the distal margin; the dentate margin bears several 

 short thin setae. Maxillae I have a well-developed palp which is armed 

 in the distal part of the inner margin with small denticles; the outer lobe 

 bears a few distal spines and a row of thin satae on the inner margin; the 

 inner lobe is oval and bears thin setae on the inner margin. The lobes of 

 maxillae II are roughly equal in size and oval, and each has one small 

 distal denticle. The maxillipeds are strong, with short outer lobes having 

 a flat anterior and rounded posterior surface; some small tubercle-shaped 

 spines occur along the inner margin of each lobe. 



Pereopods I have a weakly developed chela; the 5th segment is dis- 

 tally broadened, forming an acute lobe on the posterior margin, adjacent 

 to the posterior margin of the 6th segment; the 6th segment is shorter 

 than the 5th; its posterior margin is not uniformly denticulate and is 

 armed with short spines; above the claw there are two teeth of unequal 

 size; the claw is straight and stylet-shaped. Pereopods II are simple; the 

 5th segment is rod-shaped; the 6th segment is somewhat shorter than the 

 5th and stretched above the claw as a strong, acute denticle. The 6th seg- 

 ment of pereopods III and IV is thin and longer than the 5th segment; the 

 191 claws are small and retractile. Pereopods V are long and strong; the 2nd 

 segment is somewhat shorter than the remaining segments together; its 

 anterior margin is smooth and the posterior margin bears several (12-22) 

 long, blunt denticle-lobes, enlarged in the distal part of the row; the ante- 

 rior distal angle of the segment is drawn into a long, curved denticle; 

 the 4th segment is shorter than the 5 th and almost equal to the thin 6th; 

 sometimes the 5th and 6th segments are equal; the claw is very small and 

 retractile. Pereopods VI are only slightly shorter but weaker than pere- 

 opods V; the 4th segment is roughly twice longer than the 5th, which in 

 turn is shorter than or equal to the 6th. Pereopods VII have almost the 

 same proportions as pereopods VI but are slighdy shorter. The claws of 

 pereopods VI and VII are small and retractile. 



The basipodites of the uropods are longer than the endopodites; the 

 exopodites are comparatively well developed, roughly similar to those in 

 C. brevicaudata. The distal part of the anterior margin of the basipodite 

 of uropods I is finely denticulate and the posterior margin bears a small 

 number of strong spines. The posterior margin of uropods II is den- 

 ticulate, and opposite the place of attachment of the exopodite bears an 

 isolated large denticle that, however, is not as large as in C. brevicaudata. 

 The anterior margin of the basipodite of uropods III is weakly denticu- 

 late. The telson is spatulate, with a rounded tip. 



