_ 87 



cuous hand-like depressed area, bounded by 2 projecting plica 1 , 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 

 lamelhe. Tail somewhat more slender than in the type species. Eye easily 

 observable, semicircular in form. Anterior maxilla} 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 4 J /2 mm. 



Atlult mule, 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 seta, 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. Campy laspis eostata, G. 0. Sars. 



(PL LX). 

 Campylaspis eostata. G. O. Sars. Om den abei-rante 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 



