ORCHESTIA MEDITERRANEA. 
31 
A MPHIPODA . ORQIIESTIIDJE. 
SALTATORIA. 
Specific Character. — Male . — Second pair of gnatliopoda having the pro- 
podos broad posteriorly, and gradually tapering to a point anteriorly ; palm 
very oblique, smooth, occupying nearly the whole of the inferior margin ; pos- 
terior pair of pereiopoda having the meros and carpus broad in mature adults. 
Female . — First pair of gnathopoda having the propodos long and cylin- 
drical : the palm short ; the inferior angle but slightly tuberculated. 
Length of full-grown males about $ of an inch. 
0. mediterranean 
0. littorea, 
0. littorea , var., 
0. Ice vis. 
Costa, Rend. dell. Accad. Sci. Napoli, p. 171, 1853. 
Spence Bate, Cat. Amph. Brit. Museum, p. 24, pi. 
iv. fig. 5. 
Milne-Edwards, Ann. Sc. Nat. t. 20, Hist, des Crust, 
iii. p. 16, Regne An., Edit. Crociiard, Crust, pi. 59, 
f. 3 (males), fig. 2 b-2 j (details). Rathke, Fauna 
der Krym, t. 5, fig. 1-6. Lucas, Exped. dans 
l’Algerie. 
White, Hist. Brit. Crust, p. 163. 
Spence Bate, Ann. Nat. Hist. 2nd ser. 1857, xix. 
p. 136, White, Cat. Brit. Mus. Crust, p. 48. 
