78 STALK-EYED CRUSTACEA 



intestinal region ; postocular teeth more prominent than 

 the praeocular ; the distance between their tips equalh'ng 

 five-sixths of the greatest breadth of the carapace. The 

 rostrum forms between one-fourth and one-fifth of the 

 length of the carapace ; it is deflexed, curving downwards, 

 bifid, with the horns united at base for one -third their 

 length, then divergent. Orbital tubes rather large. The 

 movable part of the external antenna; is longer than the 

 rostrum ; the spine on their basal joint is visible on a 

 dorsal view, divergent from the rostrum and nearer to the 

 orbital tubes. Obtuse spines on the fourth joint of first 

 pair of legs ; hands compressed ; distal half of fingers 

 black, with white tips. 



Range. — Guadaloupe, St. Thomas. 



Subfamily II. Othoniinae. 



OthoniincR .... Miers. 

 Othonincs .... Dana, Stimpson. 



Carapace suboblong ; interorbital space very broad. 

 Rostrum almost obsolete. Second joint of external 

 antenna enlarged. First pair of legs with the fingers 

 excavated at the tips. 



I. Othonia. 



Otlionia . . Bell, A. Milne Edwards, Miers. 

 Pzt/w . . . Bell. 



The carapace is truncated in front ; the frontal region 

 is wide. Its general form is suboval, the antero-lateral 

 borders with the postero-lateral being a slightly bowed 

 line bearing teeth. The orbits are tubular. The rostrum 

 is very short, and formed of two small teeth. The external 



