89 
the subrostral corner, both plicae having a somewhat flexuous course. The first 
2 pedigerous segments elevated dorsally to well-marked procurved lamellae, the 3 
posterior ones each with 2 juxtaposed dorsal tubercles. Caudal segments rather 
short, and somewhat elevated dorsally. Eye, as in C. costata, oval in form. 
Antennae and oral parts almost exactly as in C. costata. Second pair of legs 
rather robust, with the terminal joint less narrowed than in the other species, 
and scarcely longer than the antepenultimate joint, its edges clothed with strong 
curved bristles; the 3 posterior pairs with the antepenultimate joint serrate along 
the anterior edge. Uropoda with the stem slightly serrate inside, rami very short, 
the inner one not nearly attaining half the length of the stem, and armed with 
only 4 spinules. Colour pale carneous. Length 6 mm. 
Adult male exhibiting the usual differences from the female, the body 
being more slender, and the carapace shallower, with a short transverse fold 
connecting the 2 lateral plicae in front. Length reaching 7 mm. 
Remarks. — In its general appearance, this form very much resembles 
C. costata. It is, however, of considerably larger size, and, on a closer examina¬ 
tion, is moreover easily distinguishable by the less vaulted carapace and its 
coarse sculpture. Some minor differences may also be proved to exist in the 
structure of the legs and uropoda. 
Occurrence. —I have hitherto only met with this form off the Lofoten 
Islands, where it occurred rather sparingly in a depth of 100—200 fathoms. 
Out of Norway it has not yet been recorded. 
6. Campylaspis horrida, G. 0. Sars. 
(PI. LXII). 
Campylaspis horrida, G. 0. Sars. Nye Dybvandscrustacper fra Lofoten. 
Chr. Yid. Selsk. Forh. 1869, p. 162. 
Specific Characters. — Female. General form of body about as in the 2 
preceding species. Carapace large and tumid, with the anterior part rather 
exserted, surface very uneven owing to numerous conically produced protuberances, 
especially densely crowded together on the dorsal face, whereas laterally they are 
arranged in 2 longitudinal rows, the lower of which forms an almost continuous 
carina, both series being connected in front by a somewhat irregular transverse 
prominence continued on the side of the pseudorostral projection, which is rather 
prominent, subrostral corners small but well defined. The first 2 pedigerous 
segments, as usual, elevated dorsally to thin lamellae, the 3 succeeding ones, like 
the 4 anterior caudal segments, provided with 2 juxtaposed dorsal tubercles, 
