134 



ISOPODA. 



ABERRANT1A. 



TANAID^E. 



TANAIDJS. 



LEPTOCHELIA EDWARDSII. 



Specific character. Superior antennae half the length, of the animal ; 

 inferior antennae not so long as the basal joint of the superior. First pair of 

 gnathopoda long, robust, with gaping chela, having the infero-digital process 

 armed with two strong blunt teeth. Posterior pair of pleopoda short, being 

 less than half the length of the pleon. 



Length \ inch. 



Tanais Edwardsii. KROYER, Naturh. Tidsskr. iv. 181, pi. ii. figs. 13-19. 



DANA, U.S. Expl. Exped. p. 800. 



THE animal is slender and linear. The head is fused 

 with the first segment of the body, the six following seg- 

 ments subequal, the anterior being somewhat the smallest. 

 The tail consists of six segments, of which the last is 

 rather the longest and terminates in an obtuse apex. 

 The eyes are small, round, consisting of six or seven 

 rather large lenses, and planted on a small peduncle 

 placed in front of the anterior margin of the cephalon, 

 which, however, partly covers it. The superior pair of 



