STALK-EYED CRUSTACEA 13 



rounded. Eyes project laterally. The basal joint of the 

 external antennae keeled, without spines or teeth ; the 

 flagellum is not concealed beneath the rostrum. The 

 fourth joint of the external maxillipedes is shorter than 

 the third, and for the most part narrov/er, but very 

 variable in width ; apex obtuse or produced ; the fifth 

 joint articulates with it at its antero-internal angle. The 

 first pair of legs in the male moderately robust, with the 

 palm slightly swollen. The walking legs have the last 

 joint curved or hook-shaped. 



The first segment of the abdomen is large ; the second, 

 third, and fourth, narrower ; the three last segments 

 coalesce. 



Range. — West Indies, Gulf of Mexico, California. 



Subgenus I. Podochela. 

 Subgenus II. Coryrhynchus. 



Synopsis of the Subgenera and Species. 



A. Rostrum short, triangular. — {^Subgenus Podochela.) 



a. The two terminal joints of the two last pairs of legs 

 curved, forming a hook. 



1. Antero-external angle of the fourth joint of external 

 maxillipedes rounded ; rostrum longer than broad. — 

 {P. grossipes.) 



2. Antero-external angle of fourth joint of external 

 maxillipedes sharp ; rostrum as long as broad. — {P. 

 macrodera.) 



b. The two terminal joints of the fourth and fifth pairs 

 of legs straight. 



3. Antero-external angle of fourth joint of external 

 maxillipedes sharp ; rostrum much longer than broad. — 

 {P. gracilipes.) 



