146 Part I1L.—Twenty-third Annual Report 
_The posterior antennz are moderately slender and elongated, and the 
end joint is armed with a hook-like process on the outer distal angle in 
addition to the usual terminal sete (fig. 12) ; outer ramus small, uniarticu- 
late, and provided with two marginal and two terminal sete. 
Mandibles small and armed with a few bluntly-rounded teeth on the 
biting edge; palp small and furnished with a minute uniarticulated 
branch (fig. 13), 
Maxillee and first maxillipeds as in L. thoracica. 
Second maxillipeds also similar to those of that species, the terminal 
claw being long and slender (fig. 14). 
In the first pair of natatory legs the inner branch has the joint slender 
and nearly twice the length of the entire outer branch, and it bears a few 
minute bristles on the inner margin ; the end joint is small and armed 
with a moderately stout and elongated claw. The outer branches are 
composed of three subequal joints, but the last is rather smaller than 
either of the other two (fig. 15), Outer branches of the second, third, 
and fourth pairs all three-jointed, elongated, and slender, and bearing long 
slender spiniform marginal setz and very Jong terminal bristles, as shown 
by the drawing (figs. 16-18); inner branches short, two-jointed, and 
scarcely reaching to the second joint of the outer branches ; first joint 
considerably shorter than the second, and each furnished with a single 
seta near the end of the inner margin ; the end joint of the inner branches 
of the second and fourth pairs has a single seta on the lower half of the 
outer margin, two onthe inner margin, and two at the apex ; but in the 
third pair “there are three sete on the inner margin of the end joint of the 
inner branches. 
Moreover, a single seta springs from near the middle of the inner’ 
margin of the end joint of the outer branches of the second pair, and two 
from the inner margins of the same joints of the third and fourth, but 
otherwise the armature of the outer branches of the second, third, and 
fourth pairs is much alike. 
Fifth pair of moderate size, primary joint urbadiy oblong ; the inner 
distal angle slightly produced, and furnished with three sete on the inner 
margin—one being near the middle aud two near the distal end; the 
produced part bears one seta also on its inner margin and three others of 
small size and unequal length at its apex. ‘The primary joint also carries 
a slender spiniform seta on the outer distal angle ; the secondary joint is 
narrow and elongated, the length being equal to fully four times the 
width at the broadest part ; it is provided with about four sete on the 
outer margin, one on the inner margin, and one on the produced and 
narrow apex (fig. 19). 
Habitat.—In an old quarry at Granton, Firth of Forth, which is open 
to the sea; collected August 25, 1894: rare. This species differs 
from any other known to me; no male has yet been observed. 
Fam. CLETODEIDZ.. | 
Genus Cletodes, Brady (1872). 
Cletodes Sarsi,* sp. n. PI. xii, figs.. 1-9. 
Description of the Female. “_This species is somewhat intermediate 
between Cletodes neglecta and C. longicaudata, but differs from C. neg: 
lecta in having longer furcal joints, and from C. longicaudata in the 
furcal joints of that species being still more elongated (fig. 1). The 
length of the specimen figured is about ‘5mm. (35 of an inch). 
* Named in compliment to Herr Professor G. a Bars, a a Norwegian 
carcinologist. ‘ ; 
q 
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