350 



GAMMARID^l. 



AMPHIPODA. 



NAT A TORI A. 



GAMMARIDES. 



MCE11A GROSSIMANA. 



Specific character. Superior antenna? half as long as the animal : ped- 

 uncle very long, with the second joint longer than the first : the short 

 flagellum not more than half the length of the peduncle : secondary append- 

 age half the length of the flagellum. Second pair of gnathopoda oblong ; 

 palm slightly oblique. 



Length inch. 



Cancer (Gammarus) grossimanus. Montagu, Linn. Trans, ix. t. iv. fig. 5. 

 Mcera grossimana. Leach, Edin. Encyc. vii. p. 403. Linn. 



Trans, xi. p. 359. Suppl. Enc. Brit. i. 



p. 425. Samouelle, Ent. Comp. p. 103. 



Desmarest, Consid. sur Crust, p. 265. 



Spence Bate, Cat. Amph. Brit. Mus. 



p. 188, pi. xxxiv. fig. 3. 

 Milne Edwards, Hist, des Crust, t. iii. 



p. 54. White, Cat. Brit. Mus. Crust. 



1847, and Cat. Brit. Crust. 1849, 



p. 53. Pop. Hist. Brit. Crust, p. 185. 



Gosse, Man. Mar. Zool. i. p. 141. 



Spence Bate, Synop. &c. Ann. Nat. 



Hist. 2 ser. xix. p. 145. 

 Milne Edwards, Ann. des Sc. Nat. t. xx. 



p. 368. Hist, cles Crust, t. iii. p. 49. 



Gammarus grossimamis. 



Gammarus Impostii. 



In this animal the head is not deep, but nearly as long- 

 as the first three segments of the body. The body itself 



