516 APPENDIX. 



long and prominent. Third joint of the peduncle short and 

 stout, and furnished at the infero-anterior angle with a strong 

 tooth and a few hairs. Fourth and fifth joints long, slender, and 

 subequal. The fiagellum consists of eight articuli. First pair 

 of gnathopoda slender ; propodos shorter and not broader 

 than the carpus, furnished with numerous and long hairs ; 

 dactylos short and impinging closely on the palm. Second 

 pair long and well developed ; carpus distally dilated : pro- 

 podos subconflnent with the carpus, long, broad ; inferior and 

 superior margins subparallel ; palm oblique, armed near the 

 centre with a broad flat-headed tubercle, furnished with a few 

 hairs, slightly posterior to which is a double-cusped process, 

 or strong tooth, between the two points of which the apex of 

 the dactylos impinges ; and at the infero-anterior angle are 

 two prominences, carrying one or two strong straight spines : 

 the dactylos is very robust, abruptly curved, sharp at the point, 

 and shorter than the palm. Posterior pair of pleopoda (want- 

 ing). Telson double-lobed ; each lobe surmounted by a single 

 spine. 



Hah. — Guernsey, where it was taken by the Eev. A. M. 

 Norman. 



