AMPHIPODA. 



NATATORIA. 



CERAPUS DIFFORMIS. 457 



PODOCERIDES. 



CERAPUS DIFFORMIS. 



Specific character. Male. Antennae subequal. Second pair of gnatho- 

 poda having the carpus longer than the propodos, and the extremity of the 

 infero-anterior process single -pointed. 



Length -^ inch. 



Female. Second pair of gnathopoda with the wrist rather broader but 

 not longer than the propodos, having the infero-anterior angle wide, and 

 slightly produced as a plate along the inferior margin of the propodos. 



Length 5 3 g inch. 



JEricthonius difformis. MILNE EDWARDS, Ann. des Sc. Nat. t. xx. p. 382. 



Hist, des Crust, t. iii. p. 60, pi. xxix. fig. 12. 

 Cerapus difformis. SPENCE BATE, Cat. Amph. Brit. Mus. p. 265, pi. xlv. 



fig. 5. 



THE male of this species bears a general resemblance 

 to the preceding. The eyes are round, small, and black. 

 The superior antennae are rather more than half the 

 length of the animal. The inferior antennae are nearly 

 as long as the superior. The first pair of legs are small, 



