91 



antepenultimate one and comparatively narrower than in the 2 preceding species. 

 l T ropoda with the stem slightly serrate on both edges, inner ramus exceeding 

 half the length of the stem, and armed with 5 spinules. Colour whitish with a 

 faint greenish tinge. Length 5'/j mm. 



Adult male much more slender than the female, with the carapace shal- 

 lower, and scarcely at all vaulted above. Appendages exhibiting the usual trans- 

 formation. Length Q 1 /? mm. 



Remark*. This form is allied to C. horrida, but may be readily distin- 

 guished by the somewhat different form of the carapace and the less numerous 

 and more obtuse protuberances clothing its surface. Moreover the stern of the 

 uropoda is considerably shorter, and the colour of the body very different. The 

 species described by the present author from the Challenger Expedition as C. 

 nodulosa strongly resembles the Norwegian form in its external appearance; but 

 the remoteness of the locality (Kerguelen Islands) must put its specific distinctness 

 beyond all doubt. 



Occurrence. I have found this species along the whole south and west 

 coast of Norway, as far north as the Lofoten Islands, and in some places, for 

 instance in the Trondhjem Fjord, very abundantly. It occurs in depths ranging 

 from 60 to 100 fathoms, muddy clay. The species is hitherto only known from 

 the Norwegian coast. 



8. Campylaspis affmis, G-. 0. Sars. 



(PI. LXIV). 



Campylaspis affinis, G. 0. Sars. Nye Dybvandscrustaceer fra Lofoten. 

 Chr. Vid. Selsk. Forli. 1869, p. 160. 



Specific Characters. Female. Body comparatively more slender in form 

 than usual, with the anterior division less tumefied. Carapace of moderate size 

 and evenly vaulted above, with the anterior part but slightly produced, surface 

 nearly smooth, with only slight traces of a few obtuse protuberances in the anterior 

 part of the dorsal face; pseudorostral projection comparatively short, subrostral 

 corners small, though distinct. The first 2 pedigerous segments less narrow than 

 usual, and having the posterior edge but slightly elevated dorsally ; the succeeding 

 segments, as also the caudal ones, perfectly smooth. Terminal joint of 1st pair 

 of maxillipeds less rudimentary than usual, oval fusiform in shape, and finely 

 ciliated on the edges, tip carrying 2 unequal spines. Second pair of maxillipeds 

 with the seta issuing from the inner corner of the basal joint peculiarly trans- 

 formed, penultimate joint not nearly so large as in the other species. Structure 



