114 HISTORY OF BRITISH CRUSTACEA. 



unknown as British, but I have examined several specimens 

 taken from the stomachs of fishes from the depth of fifteen 

 or twenty fathoms. Some of these were of larger size than 

 described from the Mediterranean; one, not the largest, 

 measuring three inches from snout to tail, with antenna? of 

 the length of five inches" (p. 79). 



Gen. 41. NIKA, Risso. 



Eirst pair of legs dissimilar ; one on right side with two 

 toes, one on left with one toe only. Beak very small. 

 Inner antennae slender and ending in two long filaments. 

 The outer jaw-feet are pediform, long, and stout. The 

 fore legs are stronger than the following. 



This is the genus which Dr. Leach described under the 

 name of Processa ; the first species is the Processa canalicu- 

 lata of that author ; the name here adopted is prior to Dr. 

 Leach's, and is given to it from the species being eaten on 

 the coasts of the Mediterranean, as the Shrimp is eaten here. 



Nika edulis, Kisso. Risso' 's Shrimp, — Two-toed hand 

 longer than the wrist, both straight; middle plate of tail 

 grooved down the middle, and furnished above with two 

 pairs of small spines. It is about two inches long. 



