CERAPUS DIEEORMIS. 
457 
A MPHIPODA . P OT) 0 C BRIDES. 
NAT A TORI A, 
Specific character. Male. — Antennae subequal. Second pair of gnatho- 
poda baying tbe carpus longer than the propodos, and the extremity of the 
infero-anterior process single -pointed. 
Length 2 7 g 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 5 inch. 
Ericthonius 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, 
