AMPHIPODA. 



NATATOEIA. 



ANONYX DENTICULATUS. 101 



LYSIANASSIDES. 



\ 



ANONYX DENTICULATUS. 



Specific character. Third segment of the pleon produced on each side 

 into a tooth, which is directed upwards and backwards, at a right angle with 

 the inferior half of the posterior margin. Inferior antennae more than half 

 the length of the animal. 



Length * inch. 



Anonyx denticulatus. 



SPENCE BATE, Rep. Brit. Assoc. 1855, p. 58. Ann. 

 Nat. Hist. 2 ser. vol. xix. 139 (Feb. 1857.) Cat. 

 Amph. Brit. Mus. p. 74, pi. xii. fig. 2. WHITE, 

 Pop. Hist. Brit. Crust, p. 171. 



THE animal is proportionally long, and in general form 

 bears a considerable resemblance to Anonyx ampulla, from 

 which it may be readily recognized by the posterior mar- 

 gin of the last deep segment of the body being produced 

 on each side backwards and upwards into a long flat 

 tooth. The eyes in this species have not been observed 

 by us, having only seen dead specimens. The superior 



