AMPHIPODA. 



X AT ATOM A. 



LEUCOTIIOE A RTTCULOS A . 



271 



GAM MA RIDES. 



LEUCOTHOE ARTICULOSA. 



Specific character. First pair of gnathopoda with the carpus pyriform ; 

 second pair having the propodos ovate, the palm smooth. 



Length | inch. 



Cancer {Gam marus) artic ulos us. 



Lcucothoe articulosa. 



Gammarus spinicarpus. 



Montagu, Linn. Trans, vii. p. 70, pi. vi. 



f. 6. 

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



Trans, xi. p, 358. Suppl. Enc. Brit. i. 



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



Desmarest, Consid. sur Crust, p. 263, 



pi. 45, f. 5. Milxe Edwards, Hist. 



des Crust, t. iii. p. 58, pi. 29, f. 14. 



Liljeborg, Ofvers. af kongl. Vet. 



Akad. Forhaudl. 1855, p. 126. White, 



Pop. Hist. Brit. Crust, p. 188. Cat. 



Crust. Brit. Mus. 1847. Cat. Brit. 



Crust. 1850, p. 53. Gosse, Man. Mar. 



Zool. p. 141, fig. 259. Spence Bate, 



Rep. Brit. Assoc. 1855, p. 59. Ann. 



Nat. Hist. 2 ser. xix. p. 146. Cat. 



Amph. Brit Mus. p. 156, pi. xxix. f. 2. 

 Muller, Zool. Dan. iii. p. 66, pi. cxix. 



f. 1-4. 



The head is anteriorly produced into a small rostrum 

 curved downwards betw T een the superior antennas. The 

 eyes are obliquely planted in the head, of an oval shape 

 and a red colour. The superior antennas are about one- 



