418 
COROPHIIDiE. 
A MPHIPODA . PODOCERIDES. 
NATATORIA. 
Specific character. Superior antennae nearly two-thirds the length of the 
animal ; peduncle reaching to the extremity of the penultimate joints of the 
peduncle of the inferior ; flagellum long and slender. Inferior antennae one- 
third shorter than the superior. Gnathopoda having the propoda snbequal ; 
carpi inferiorly produced to a small extent ; propoda ovate, the palmae oblique 
and imperfectly defined. The colour of the adult animal is a bright 
crimson. 
Length 4 inch. 
Cancer ( Gammarus ) rubricatus. Montagu, Linn. Trans, ix. p. 99, pi. v. 
fig. 1. 
Gammarus rubricatus. Leach, Edin. Encyc. vii. p. 402. 
Ampliithoe rubricata. Leach, Edin. Encyc. Append, p. 432. 
Linn. Trans, xi. p. 360. Suppl. Enc. 
Brit. 1, p. 425. Desmarest, Consid. 
Crust, t. 45, fig. 9. Samouelle, Ent. 
Comp. p. 104. Thompson, Ann. Nat. 
Hist. xx. p. 242 (Oct. 1847). Milne 
Edwards, Ann. Sci. Nat. xx. p. 377. 
Hist, des Crust, iii. p. 33. Spence 
Bate, Rep. Brit. Assoc. 1855, p. 59. 
Ann. Nat. Hist. 2 ser. vol. xix. p. 147. 
Cat. Amph. Brit. Mus. p. 233. White, 
Hist. Brit. Crust, p. 200. Gosse, Mar. 
Zool. i. p. 141, fig. 258. 
The figure at the head of this description is taken 
from Montagu’s type in the British Museum. But the 
