MICRODEUTOPUS ANOMALUS. 
293 
amphipoda. oammarides. 
NATATORIA. 
MICRODEUTOPUS ANOMALUS. 
Specific character. First pair of gnathopoda large but unarmed. Last 
pair of legs remarkably long. 
Length 5 inch. 
Gammarus anomalus. Rathke, Nova Acta Leop. p. 63, tab. iv. fig. 7, 
1843. Liljeborg, Ofvers. af Kongl. Yet. 
Akad. Forhandl. 1854, p. 457. 
Microdentopus anomalus. Spence Bate, Cat. Amph. Brit. Mus. p. 164, 
pi. xxx. fig. 3. 
Lernbos Cambriensis. Spence Bate, Rep. Brit. Assoc. 1855, p. 58. 
Ann. Nat. Hist. 2 ser. xix. p. 142, 1857. 
White, Pop. Hist. Brit. Crust, p. 180. 
The eyes in this species are black, of a long-oval form, 
and planted obliquely in the head. The superior antennae 
are about half the length of the animal, and furnished 
with a secondary appendage consisting of four minute 
articuli. The inferior antennae are about one-third 
shorter than the superior ; but the peduncle is quite as 
long as that of the superior. The first pair of legs have 
the wrist shorter than the hand but not broader. The 
hand is of a long-oval form ; the palm is convex, and 
is continuous with the inferior margin, without its limits 
