176 BRITISH COPEPODA. 
claws; hand of the second pair (fig. 7) dilated at the 
base, subpyriform, terminating in three strong claws. 
Both branches of the first pair of feet (fig. 8) are 
3-jointed and thick, the last joint being in both cases 
extremely small, and the terminal claws expanded 
into delicate pulvilliform appendages; the first joint 
of the inner branch is much dilated towards the base; 
the external margin is ciliated, the internal ciliated 
near the base, and gives origin, near the middle, to a 
large plumose seta; the second joint has a single 
short seta; first jomt of the outer branch ciliated 
externally, and provided with a large plumose apical 
seta; second and third joints each with one plumose 
apical seta; the outer branch is much the shorter of 
the two. Three following pairs of feet 2-branched, 
each branch composed of three joints; the second pair 
much shorter, however, than the third and fourth, des- 
titute of marginal spines, and having the inner branch 
shorter than the outer; first joint of the outer branch 
fringed externally with a number of spine-like 
sete; the external margins of all the joints in the 
third and fourth pairs (fig. 9) are beset with short, 
stout spines, those of the first joints more slender 
than the rest, the limb being very similar to that of 
the Calanide. ‘The fifth pair is 2-jointed (fig. 10), the 
basal joint marginally ciliated, elongated, and cleft at 
the apex, each segment bearing a single long seta; 
second joint much elongated, narrow, marginally 
ciliated, with irregular transverse rows of hairs 
towards the internal margin, one long seta on the 
external margin, and three at the apex. The last 
