HARPAOTIOUS. 147 
setiferous branches. Maxille (fig. 6) well developed, 
bearing two marginal, subovate, setiferous lobes, and 
several digitiform clawed processes. Posterior foot-jaw 
(Pl. LXV, fie. 8; and Pl. LXIV, fig. 19) having a very 
strong subtriangular hand, the outer margin of which 
is strongly convex, while the inner is produced near 
the middle into an angular promontory, beyond which 
it is deeply excavated; the angle is strongly toothed 
or spined, and the teeth are continued, though of 
smalier size, along the concave portion of the hand; 
the apex gives attachment to a large falciform claw, 
and the distal portion of the concave margin bears 
one, or sometimes two, smaller claws. Outer branch 
of the first foot elongated, the first jomt marginally 
ciliated, the cilia being arranged either in a continuous 
series (fig. 9) or in three separate groups (fig. 10), 
second joint ciliated in the middle, and having one 
rather longer seta at the distal end of the row; apex 
3-clawed, inner branch about half as long as the outer, 
and armed with two terminal claws. The inner 
branch of the second foot in the male (fig. 11) has the 
outer angle of the median joint produced downwards 
into a long bayonet-like spine, which is about three 
times as long as the small and almost obsolete third 
joint. Outer branch of the third foot of the male (PI. 
LXIV, fig. 20) curved, and armed at the apex with three 
strong spines. Fifth pair of feet (Pl. LXV, figs. 12, 
13) consisting of an ovate outer, and a broad, sub-: 
quadrate inner (or basal) joint; the inner portion of 
the basal jomt bears about five plumose sete of 
irregular size, and its outer portion is more or less 
