326 STALK-EYED CRUSTACEA 



B. The lateral edges of the carapace have two teeth. 



c. The last lateral tooth is the most projecting. — 

 {C. oh ess a}) 



d. The first lateral tooth is triangular and flat; the last 

 is rounded at the base. — {C. dentata.) 



C. The lateral edges of the carapace have one tooth. 



e. The front is very advanced. — {C . gracilipes^ 



D. The lateral edges of the carapace have no teeth. 



f. The front is slightly advanced. — {C. cursor?) 



I. Cymopolia sica. 



CymopoUa sica ... A. Milne Edwards. 



The fifth segment of the sternum is prolonged back- 

 wards and forms a sharp point which exceeds the carapace, 

 and extends between the base of the corresponding legs 

 and the abdomen ; the second and third segments carry a 

 fine and transverse keel which is seen behind the carapace. 

 The front is weakly notched. The latero-anterior edges 

 have three pointed and spiniform tubercles. The dorsal 

 surface is covered with granulations arranged in small 

 groups. The wall of the orbit is very little advanced, 

 and the internal orbital angle is truncated in front. The 

 legs of the first pair are very frail in both sexes. The 

 walking legs are of moderate length ; their fourth joint 

 is granular ; the two last joints are very flat and 

 wide. 



Range. — Barbados, Grenada, Dominica, Santa Cruz. 



2. Cymopolia dilatata. 



Cymopolia dilatata ... A. Milne Edwards. 



Carapace has few knobs, which are more in the form 

 of tubercles. The orbits have projections, of which the 



