LEUCOTHOE ARTICULOSA. 
271 
AMPIIIPODA. GAMMARIDES. 
NATATORIA. 
Specific character. First pair of gnathopoda with the carpus pyriform ; 
second pair having the propodos ovate, the palm smooth. 
Length § inch. 
Cancer ( Gammarus ) articulosus. Montagu, Linn. Trans, vii. p. 70, pi. vi. 
f. 6. 
Leucothoe articulosa. 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. Milne Edwards, Hist, 
des Crust, t. iii. p. 58, pi. 29, f. 14. 
Liljeborg, Ofvers. af kongl. Yet. 
Akad. Forhaudl. 1855, p. 126. White, 
Pop. Hist. Brit. Crust, p. 188. Cat. 
Crust. Brit. Mus. 1847. Cat. Brit. 
Crust. 1850, p. 53. GIosse, 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. 
Gammarus spinicarpus. Muller, Zool. Dan. iii. p. 66, pi. cxix. 
f. 1-4. 
The head is anteriorly produced into a small rostrum 
curved downwards between the superior antennae. The 
eyes are obliquely planted in the head, of an oval shape 
and a red colour. The superior antennae are about one- 
