UROTHOE MARINUS. 
195 
AM PHI POD A. 
NAT AT OR! A. 
PIIOXIDES . 
UROTHOE MARINUS. 
Specific character. Superior antennae longer than the inferior. Inferior 
antennae having the flagellum uniarticulate. Second pair of gnathopoda 
with the palm slightly oblique. Both branches of the terminal caudal ap- 
pendages plumose. 
Length inch. 
Urothoe marinus. Spence Bate, Cat. Amph. Brit. Mus. p. 1 45, pi. xix. 
fig. 2. 
Sulcalor marinus. Spence Bate, Synop. Brit. Amph. Ann. Nat. Hist. ser. 
2, xix. p. 140, Feb. 1857. White, Hist. Brit. Crust, 
p. 175. 
This species bears a close resemblance to the preceding 
in its general aspect, but may readily be detected from it 
by the shortness of the inferior antennae. The superior 
antennm are about one-fourth of the length of the 
animal, and have a flagellum scarcely longer than the 
last joint of the peduncle. The inferior antennae 
scarcely reach beyond the extremity of the peduncle 
of the superior. The first joint of the peduncle is 
surmounted by three longitudinal rows of spines, each 
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