89 



the subrostral corner, both plica; 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. 

 Antenna* 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. 



Atlult 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. 



Remark*. 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. Vid. 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 lamella?, the 3 succeeding ones, like 

 the 4 anterior caudal segments, provided with 2 juxtaposed dorsal tubercles, 



