CALLIOPE L.EVIUSCULA. 



AMPHIPODA. 



NATATORIA. 



259 



GAMMARIDES. 



d 



CALLIOPE L^VIUSCULA. 



Specific character. Eyes tolerably large. Superior antennae having 

 the third joint of the peduncle infero-distally produced to a short tooth. 

 Gnathopoda having the propoda large, oval, and robust. 



Length inch. 



Amphithoe Iceviuscula. KROYER, Grcinl. Amph. p. 53, t. 3, fig. 13. MILNE 

 EDWARDS, Hist, des Crust, t. 3, p. 30. BELL, 

 Append. Belcher's last Arctic Voy. p. 405. 



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



Nat. Hist. 2 ser. xix. p. 142 (Feb. 1857). Cat. 

 Amph. Brit. Mus. p. 148, pi. xxviii. fig. 2. 

 WHITE, Pop. Hist. Brit. Crust, p. 179. 



THE head is produced anteriorly to a small point be- 

 tween the superior antennae. The first three segments 

 of the tail have the posterior margin a little elevated in 

 some specimens. The fourth segment has a broad but 

 not deep depression, which appears to receive the pos- 

 terior margin of the third segment when the animal is 

 extended. The eyes are black, and tolerably large and 

 irregularly round. The antennae are nearly of the same 



