324 STALK-EYED CRUSTACEA 



cavity has in front, in the middle line, a large notch ; 

 it is hid by the external maxillipedes, which are advanced 

 much in such a way as to hide the base of the internal 

 antennae. The third joint of the external maxillipedes 

 is long ; the fourth is narrow. The first pair of legs 

 is short, and has pointed fingers. The second and third 

 pair resemble those of Cyclodorippe ; the fourth and fifth 

 are small, folded on the back, and end in a small hooked 

 nail, but they are not cheliform. 



The abdomen of the male is short. The last segment 

 of the abdomen of the female is triangular, with a rounded 

 end. The eggs are very large cuid fc^^^ in number. The 

 genital orifice of the female opens on the basal joint of 

 the third pair of legs. 



I. Cymonomus quadratus. 



Cyjiionouins qiiadi-atiis . . A. Milne Edwards. 



The carapace is subquadrilateral, the antero-lateral 

 edges being placed almost on the same transverse line 

 as the facial region, which is very straight, the surface 

 is little curved and finely granular ; the rostrum is thin 

 and pointed ; the antero-lateral edges are armed with 

 some small spines, the postero-lateral are unarmed ; the 

 posterior border is wide. The legs of the first pair are 

 feeble and granular ; their fingers are as long as the 

 palm. The walking legs are long and smooth. 



Range. — Grenada, Dominica, Guadeloupe, Santa 

 Cruz, Havana ; in deep water. 



3. Cymopolus. 



Cynwpolns .... A. Milne Edwards, 



The eyes are normally developed. The fourth joint 

 of the external maxillipedes do not conceal the fifth and 



