4o8 STALK-EYED CRUSTACEA 



transverse cardiac depression is not deep. The anterior 

 edge is more oblique, starting from this frontal point, 

 The posterior edge has in its middle portion three small 

 spines arranged transversely. The rostrum is straight, 

 and slightly keeled above. The abdominal segments are 

 almost smooth. The legs of the first pair are long, with 

 fourth and fifth joint spiny ; the hand has sharp points. 

 The walking legs are short and strong ; there are some 

 hairs. 



Range. — Martinique, Guadaloupe. ' 



2. Munidopsis simplex. 



Mmiidopsis simplex .... A. Milne Edwards and 



Bouvier. 

 GalatJiodes simplex . . . . A. Milne Edwards. 



The carapace has no spines, only some pointed 

 tubercles on the gastric region ; it has some transverse, 

 line-like rugosities. There is a deep transverse depres- 

 sion between the anterior and posterior cardiac lobes. 

 The lateral angle is sharp and spiniform. The lateral 

 edges are rounded and unarmed. The rostrum is 

 slightly elevated. The second and third abdominal 

 segment have a small median spine. The legs of 

 the first pair are weak in both sexes. The fourth and 

 fifth joint have spines inside. The hand is smooth, 

 and the fingers are in contact along their entire length 

 when closed. The fourth joint of the walking legs is 

 rough. 



Range. — St. Vincent, Martinique, Dominica, Guada- 

 loupe. 



