MONOCULODES CARINATUS, 
165 
A MPH1P OLA . PHOXIDES. 
NAT ATOM A. 
MONOCULODES CARINATUS. 
Specific character. Body having the last two segments, and the tail having 
the first three segments, dorsally raised into a keel, increasing in size poste- 
riorly, and ending abruptly in each segment. 
Length \ inch. 
Westwoodea carinata. Spence Bate, Brit. Assoc. Rep. 1855, p. 58 
Kroyera carinata. Spence Bate, Synop. Ann. Nat. Hist. Feb. 1857, 
2 ser. xix. p. 140. 
Monoculodes carinalus. Spence Bate, Cat. Crust. Brit. Mus. p. 104 
The head is considerably produced anteriorly, and 
much deflexed. The eye is long-oval, deeply seated, 
and rather dimly defined, lying in a plane correspond- 
ing with the dorsal surface. The superior pair of an- 
tennas do not reach further than the extremity of the 
peduncle of the inferior pair ; their peduncle reaches a 
little beyond the anterior extremity of the head ; and 
the flagellum is about the length of the peduncle. The 
inferior pair of antennae are about one-third the length 
