( 147' ) 



make C. vwlasceiis a. synonym of C. cowpressus, Edw., a course which had 

 previously been suggested by Hilgendorf and de Man. Bouvier, however 

 (Bull. Soc. Philom, Paris (8) II., 1889-90, p. 147), while accepting the 

 suggestion of Hilgendorf and de Man as to the identity of C. compressiis and 

 C. violascens, had, prior to the publication of Ortmann's opinion, decided 

 that C. compressiis and C. ru^osus are varieties of a single species. On this 

 last point, the views of Bouvier, who has Milne Edwards' types at his 

 disposal, must be regarded as final, though they certainly do not clear up 

 the position of C. violascens. My own opinion is that C. violascens Heller 

 is the same as C. cavipes Slimpson, and that C. compressus Ortmann (but not 

 C. cofiipressHS Bouvier) must be included with them. 



Carapace, in front of the cervical groove, punctate, antero-laterally 

 scabrous and slightly setose, the gastric region little convex. 



Eyestalks compressed, dorsally punctate, not reaching the middle of the 

 terminal joint of the antennal peduncle. Ophthalmic scales narrow, acute. 



Antennular peduncle as long as the carapace. The peduncles of the 

 antennae reach the middle third of the 2nd joint of those of the antennules. 

 Antennal acicle fused with the 2nd joint of the peduncle. 



The chelipeds and legs are comparatively smooth. In the chelipeds 

 the meri are very finely and inconspicuously rugulose, the carpi are 

 punctate and have some small corneous-tipped vesicular granules in 

 the upper part of their outer surface ; the right palm has its outer 

 surface studded with similar spiniform granules, with a few bristles 

 interspersed ; the lower part of the outer surface of the left palm is quite 

 smooth, but the upper part is studded with vesicular granules with corneous 

 tips. In the upper part of the inner surface of both palms there is a thick 

 brush of long hairs. 



The 2nd and 3rd legs do not surpass the larger cheliped : except for 

 some dark corneous-tipped granules or spinules along the anterior surface of 

 the three distal joints their surfaces are merely finely punctate : their borders, 

 especially the under border, are setose. The dactyli of the right side are 

 subcylindrical, those of the left side subtriangular. In the 3rd left leg the 

 dactylus is somewhat compressed and its outer surface is flat : the outer 

 surface of the propodus also is nearly flat, but is not separated from the 

 anterior surface by a crest except quite at its distal end. The concave 

 inner surface of the 2nd and 3rd left dactyli is traversed by a very fine 

 longitudinal line, the edge of which is corneous. The cox^e of the 5th pair 

 of legs are a little more salient in the male than in the female : in both 

 sexes the left is slightly more prominent than the right. 



