STALK-EYED CRUSTACEA 8i 



joint of the external antennae has no teeth on its anterior 

 and external border. The first pair of legs of the male 

 is very large. The arm is smooth, almost cylindrical, and 

 stretching much beyond the carapace. The hand is high, 

 very compressed, its upper and lower border has a crest ; 

 the fingers, when closed, have a large space between 

 them. 



Range. — Guadaloupe, St. Thomas. 



3. Othonia laevigata. 



OtJionia Icsvigata . . A. Milne Edwards. 



The carapace is broader than long. The surface 

 smooth, and marked only with some fine punctuations. 

 The praeocular angles are obtuse ; the external orbital 

 angle is sharp. The antero-lateral edge is cut into five 

 almost equal, well-developed, very strong and sharp 

 teeth, with their points directed outwards and a little 

 forwards. 



The anterior edge of the basal joint of external 

 antennae is straight. The first pair of legs of the male is 

 very long. 



Range. — West Indian Sea. 



Subfamily III. Mithracinae. 



MitJiracincs .... Stimpson, Miers. 



Carapace broadly triangular, sometimes transverse, 

 with the sides slightly arcuate ; interorbital space narrow. 

 Rostrum short or obsolete. Second joint of external 

 antennae not dilated. First pair of legs with the fingers 

 elevated at the tips. 

 6 



