Occurrence. Only 2 female specimens of this form have hitherto come 

 under my notice. They were found in a sample taken some years ago at Farsund 

 from moderate depth. 



Page 214. 

 Add the following species: 



Nitocra pusilla, G. 0. Sars, n. sp. 



(Suppl. PI. 26, fig. 2). 



Specific Characters. Female. Body less slender than in the other known 

 species, gradually tapering behind. Rostral projection very small, nodiform. 

 Urosome much shorter than the anterior division, last segment comparatively 

 small and wanting the spinulose armature found in the other species, the anal 

 opercle being quite smooth. Caudal rami of moderate size and quadrangular in 

 form, with the setas of the outer corner unusually long and pointing straight 

 outwards, apical setae rather slender and divergent. Anterior antennae nearly as 

 long as the cephalic segment, and composed of 8 sharply defined joint densely 

 clothed with slender curved setae and successively diminishing in size, terminal 

 part exceeding half the length of the proximal one. Posterior antennae with the 

 outer ramus very small uniarticulate, carrying 3 ciliated setae. Oral parts of 

 normal structure. 1st pair of legs agreeing in structure with those in the other 

 species, the inner ramus being distinctly prehensile, with the outer 2 joints 

 incurved and combined scarcely more than half as long as the 1st; apical claw 

 and setae rather strong. Natatory legs with the inner ramus much shorter than 

 the outer but distinctly 3-articulate. Last pair of legs with the distal joint 

 rounded in form and edged with 6 setae, the outermost of which is unusually 

 long and slender; inner expansion of proximal joint narrow linguiform and ex- 

 tending somewhat beyond the middle of the distal joint, marginal setae 5 in 

 number, the outermost but one the longest. Ovisac of moderate size oval in form. 



Colour not yet ascertained. 



Length of adult female 0.50 mm. 



Remarks. This form differs from the other known species in the less 

 slender form of the body and in the absolute want of the usual spinulous arma- 

 ture of the last caudal segment. Otherwise it agres pretty well in all essential 

 characters assigned to the present genus. It is of smaller size than any of the 

 hitherto known species. 



