1916.] 



S. Kemp : Notes on Crusiacea Decapod a. 



393 



slender, incurved and spine-like, extending a little beyond the end 

 of the segment and bearing a few hairs externally. The second 

 and third segments are nearly equal in length, each bearing near 

 its distal end one or two very long plumose setae. The outer 

 flagellum is longer and stouter in the male than in the female. 

 In the former sex the thickened portion is composed of some seven 

 segments and is longer than the peduncle ; in the latter it is shorter 

 than the peduncle and consists only of five more slender segments. 



Autennule. 



Autenual scale. 



Mandible. 



Third maxillipede, the distal 

 segment seen obliquely. 



Distal segment of third maxilli- 

 pede. 



First peraeopod. 



Phvcocarix xi nitila its. gen. cl sp. nov. 



g. Chela of first peraeopod. 

 h. Second peraeopod. 

 i. Third peraeopod. 

 /. Dactylus of third peraeopod. 

 k. Second pleopod of female. 

 /. Telson. 

 ;/. Apex of telson. 



The inner flagellum is short and is usually carried reflected back- 

 wards. 



The antennal scale (text- fig. 26), which reaches a little beyond 

 the antennular peduncle, is broadest near the base and is less than 

 twice as long as wide ; the outer margin is convex, terminating in 

 a spine that reaches as far forwards as the apex of the lamella. 

 The peduncular segments bear long setae similar to those on the 

 antennule. 



