1916. ] S. Kemp: Notes on Crustacea Decapoda. 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. 

77L. 
a. Antennule. . Chela of first peraeopod. 
a g 
6. Antennal scale. 2. Second peraeopod. 
c. Mandible. 2. Third peraeopod. 
d. Third maxillipede, the distal 7. Dactylus of third peraeopod. 
segment seen obliquely. k. Second pleopod of female. 
e. Distal segment of third maxilli- 1, Telson. 
pede. m. Apex of telson. 
7. First peraeopod. 
The inner flagellum is short and is usually carried reflected back- 
wards. . 
The antennal scale (text-fig. 2b), which reaches a little beyond 
the antennular peduncle, is broadest near the base and ts 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. 
