63 



outer, its joints of about equal length. The 3 succeeding pairs of legs rather 

 slender, with the inner ramus longer than the outer (at least in 2nd and 3rd 

 pairs), its 1st joint moderately dilated, with the seta of the inner edge very 

 small, not spiniform, and attached beyond the middle, being accompanied 

 behind by a number of thin spinules; 2nd joint not produced at the end inside. 

 Last pair of legs with the distal joint comparatively small, rounded oval in 

 form, and only provided with 4 marginal setae; inner expansion of proximal 

 joint more produced than in the preceding species, extending almost as far as 

 the distal joint, and obtusely truncated at the end, marginal setae 4 in number. 



Colour whitish. 



Length of adult female 0.60 mm. 



Remarks. The present form looks rather like P. gracilis in its out- 

 ward appearance, but is of much smaller size, and moreover at once distinguished 

 by the comparatively less produced caudal rami. In the structure of the 

 several appendages it exhibits a somewhat mixed character; hence the specific 

 name here proposed. 



Occurrence. Only very few specimens of this form have as yet come 

 under my notice. They were taken at Ris0r from a depth of about 50 fathoms, 

 muddy bottom. 



Gen. Stenocopia, G. O. Sars. 



Remarks. The type of this genus is the form described by Scott as 

 Ameira longicandata, which however, as pointed out by the present author, must 

 be discarded from the genus Ameira, as defined by Boeck. Two other well- 

 defined species of the present genus have been recorded in Vol. V, and I now 

 am enabled to add another species, to be described below. 



52. Stenocopia minor, G. O. Sars, n. sp. 



(PL XLI). 



Specific Characters. Female. Body comparatively less slender than 

 in the type species, with the anterior division slightly broader than the posterior. 

 Cephalic segment about the length of the 3 succeeding segments combined, 

 and projecting in front to a triangular rostral plate. Trunkal segments per- 

 fectly smooth. Urosome (including the caudal rami) fully as long as the 

 anterior division and only slightly tapered behind, its segments minutely denti- 

 culate at the hind edge; genital segment of moderate size and imperfectly 



