496 STALK-EYED CRUSTACEA 



basal point is swollen, and the flagellum is long, stout, and 

 very strong. The external maxillipedes are thin and 

 pediform. The legs of the first and second pair are about 

 the same length. The palm is rudimentary. The third, 

 fourth, and fifth pair equal ; the fourth joint has below 

 many spines ; their finger is short and hooked. The 

 abdomen is large and smooth ; the second segment has 

 above two rows of small articulated spines ; it terminates 

 behind in a point from each side of which there is a 

 longer articulated spine. 



Range. — West Indies, Pacific Ocean ; in deep water. 



I. Stylodactylus serratus. 



Stylodactylus serratus ... A. Milne Edwards. 



The same as the genus. 

 Range. — Dominica. 



Family VII. Pasiphaeidae. 



PasiphcBidcB . . . Spence Bate. 



The first two pairs^of legs are well developed, and have 

 pincers. The remaining three pairs of legs are very much 

 reduced in size, and sometimes imperfectly formed. 



I. Leptochela. 



Leptochela . . . Stimpson, Spence Bate. 



Carapace smooth, scarcely crested ; rostrum very 

 short, spiniform. The internal antennae have two flagella. 

 Mandibles inflexed, broad, and compressed. Palp short, 

 ovate, and nonarticulate. First pair of maxillipedes not 

 pediform, having the last joint armed with long spines. 



