87 
cuous band-like depressed area, bounded by 2 projecting plicae, and extending 
obliquely from the most prominent part of the branchial region to the base of 
the pseudorostral projection, the latter rather short, subrostral corners very slight. 
The first 2 pedigerous segments elevated dorsally to very distinct procurved 
lamellae. Tail somewhat more slender than in the type species. Eye easily 
observable, semicircular in form. Anterior maxillae with the palp bisetose; posterior 
ones as in the 2 preceding species. Terminal joint of 1st pair of maxillipeds 
extremely small; that of 2nd pair with 4 diverging spines. Third pair of maxilli¬ 
peds less robust than in the 2 preceding species, with the meral joint much 
smaller, and not nearly attaining the length of the 2 succeeding joints combined. 
Second pair of legs with the terminal joint rather produced, exceeding in length 
the 2 preceding joints combined. The 3 posterior pairs of legs with the ante¬ 
penultimate joint serrate along the anterior edge. Uropoda comparatively slender, 
stem coarsely serrate inside, inner ramus scarcely more than half as long as the 
stem, and only armed with 3 spinules, inner edge minutely serrate. Colour whitish, 
with a faint reddish tinge on the median part of the carapace. Length 47a mm. 
Adult male, as usual, more slender than the female, with the carapace 
less vaulted, but exhibiting the very same sculpturing. Uropoda considerably 
more elongated, stem clothed with slender setse, inner ramus narrower and armed 
with about 10 ciliated spinules. Length 5 mm. 
Remarks . — This form is easily distinguishable by the very conspicuous 
depressed area extending obliquely along each side of the carapace, a character 
which has given rise to the specific name sulcata. It is otherwise very nearly 
related to the 2 preceding species, both as regards the general appearance and 
the structure of the several appendages. 
Occurrence. —I first found this form off the Lofoten Islands, where it is 
not unfrequent in depths ranging from 120 to 250 fathoms, on a bottom consisting 
of sandy clay. Subsequently I have also met with it occasionally in 2 other 
localities of the Norwegian coast, viz., in the outer part of the Hardanger Fjord 
at Mosterhavn, and in the Trondhjem Fjord, at about the same depth. Out of 
Norway this form has not yet been recorded. 
4. Campylaspis eostata, G. 0. Sars. 
(PI. LX). 
Oampylaspis eostata, G. 0. Sars. Om den aberrante Krebsdyrgruppe Cumacea, p. 79. 
Specific Characters. —Female. Body of the usual short and robust form, 
with the anterior division greatly dilated. Carapace somewhat smaller than in 
