AMPHIPODA. 



NATATORIA. 



CALLIOPE L.EVIUSCULA. 259 



GAMMARIDES. 



'% 



CALLIOPE L.EVIUSCTJLA. 



SpeciHc character. Eyes tolerably large. Superior antennje 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 Icevinscula. 



Calliope LeacJiii. 



Kroyer, Gronl. 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. 



Si'ENCE 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 antennas. 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 



s2 



