STALK-EYED CRUSTACEA 343 



its middle, with a triangular rostrum. Ocular peduncles 

 capable of retraction into well-defined orbits, with the 

 terminal joint basally dilated ; the cornea small. Antennal 

 peduncle of large size (especially the second joint), the 

 flagellum minute. Internal antennae well developed. 

 External maxillipedes elongate, the fourth joint shorter 

 than the third, of small size ; the three terminal joints 

 inserted near the apex of the fourth joint. 



Sternal shield broad anteriorly, widely separating the 

 legs of the first two pairs, and becoming narrower between 

 those of the third pair. Last pair of legs situated above 

 and in front of the fourth pair. 



Range. — West Indian Sea, Pacific Ocean; in deep 

 water. 



I. Raninoides nitidus. 

 Raninoides nitidus ... A. Milne Edwards. 



The carapace is contracted in front, and has two 

 spines behind the postorbital angle. The rostral point is 

 straight. The postorbital spine is long, thin, and slightly 

 diverging. The lateral edge of the carapace is slightly 

 bowed. 



Range. — Grenada. 



2. Zanclifer. 



Zandifcr. . . . Henderson. 



Carapace convex from side to side, and from before 

 backwards ; its surface partly uneven. The fronto-orbital 

 border very narrow, considerably less than half the width 

 of the carapace ; the frontal region trilobate, produced 

 anteriorly. Eyes rudimentary, placed in ill - defined 

 orbits ; the peduncles short, and the cornea of small size 



