1922.] 



S. Kemp : Notes on Crustacea Decapoda. 



273 



011 the lower face of the segment in its distal half there is a sharp 

 longitudinal keel. On its inner margin the dactylus bears a single 

 sharp tooth just behind its middle point, which fits between two 

 similar teeth on the fixed finger. 



In the specimens I have seen the rostrum bears 4 or 5 dorsal 

 teeth and 2 ventral. The lateral process of the antennule is 

 frequently much longer than in C. graminea and sometimes reaches 

 the level of the articulation between the second and third segments. 



The largest specimen examined is 21 mm. in length. 



In living specimens the carapace and first four abdominal 

 somites, except for a median intrusion from the fifth somite, were 



Text-fig, 99. — Coralliocaris superba (Dana). 

 (/. Second pcrneopod. b. Fingers of second peraeopod. 



pure white. The antennal scale, antennules, rostrum, all the legs, 

 the last two abdominal somites and the greater part of the tail-fan 

 were pale brown, dotted with very large dark reddish brown chroma- 

 tophores, specially conspicuous on the antennal scales and large 

 chelae. At the end of the tail-fan there was a narrow band of deep 

 blue, bordered with white. This description agrees very closely 

 with Dana's coloured figure. 



236-9/7- P (,r t Blair, Andamans. A. Alcock, Nov., Four. 



1888. 

 C 427/1. Port Blair, Andamans. S. Kemp, Feb., Nine. 



1915. 

 C 428/1. Port Blair, Andamans. R. P. Mullins, June, Three. 



1918. 



