36 STALK-EYED CRUSTACEA 



superior orbital border has two broad spines in the 

 form of triangular teeth. There is a large spine, curved 

 forwards, on the lateral edge, half-way between the orbit 

 and the branchial region. 



The basal antennal joint has a broad base, contracted 

 towards its extremity ; its external border has two spines, 

 of which the last is situated near the fissure separating the 

 antennae from the suborbital border of the carapace. The 

 antennai are not as long as the rostral horns. 



The under surface of the lateral parts are spiny, but 

 the external maxillipedes, the sternum, and the abdomen 

 are smooth. 



The first pair of legs is thin. The palm is as long as 

 the arm ; the surface is scarcely granular. The arm and 

 forearm are spiny above and below. In fem.ales and 

 young males the fingers are in contact in their whole 

 length when closed. The walking legs are long and 

 thin ; some spines, arranged longitudinally, are found 

 on the fourth and fifth joint ; the last joint is long and 

 large. 



There are short hairs on the ends of the legs, and here 

 and there on the carapace, giving to these parts the 

 appearance of a piece of cloth, but for the most part the 

 carapace is naked. 



Range. — Guadaloupe ; in deep water. 



10. Chorinus. 



Chorinus . . Leach, H. Milne Edwards, Dana. 

 Cancer. . . Herbst. 

 P/sa . . . Latreille. 



Carapace is subtriangular, elongated, convex, and with- 

 out lateral marginal spines. A prominent prceocular 

 spine. The rostrum is formed of two large pointed and 



