88 BRITISH GCOPEPODA. 
stricted in the middle, which is the narrowest part of 
the animal, posterior margins of the segments finely 
denticulated, but not produced on the dorsum, except 
the last abdominal segment, which has a posterior 
spine ; rostrum short; caudal seements (fig. 22) shorter 
than the last abdominal joint, and bearing three apical 
sete, the largest of which is not much longer than the 
last segment. Anterior antennse (fig. 13) 7-jointed, 
densely setiferous on the outer margin, first three 
joints larger than the rest, which are short and sub- 
equal. Secondary branch of the posterior antenna 
small (fig. 14), 1-jointed, and bearing four sete. 
Mandible slender (fig. 15), palp slender, with two small 
1-jointed branches. Second foot-jaw (fig. 18) small 
and slender. Inner branch of first pair of feet (fig. 19) 
long and slender, the second joint bearing two curved 
apical setz, only one fourth as long as the first joint, 
which has ciliated margins and a long marginal seta 
near the apex. Fifth pair of feet (fig. 21) composed of 
a large, subtriangular basal joint, and a smaller external 
joint, both of which bear several long marginal sete ; 
the internal portion of the first joint is largely de- 
veloped, and reaches as far as the apex of the second. 
Length -';th of an inch (68 mm). 
This species may perhaps have been often over- 
looked, owing to its small size and its general resem- 
blance to Cletodes and Laophonte. I have notes of its 
occurrence as follows:—At New Grimsby and Por- 
cressa Bay, Scilly, fourteen to twenty fathoms; Clew 
Bay ; off Marsden and Hartlepool (Durham coast), ten 
to thirty fathoms. | 
