61 



of proximal joint extending about to the middle of the distal joint, and having 

 the marginal setae less unequal in length than in the preceding species. 



Colour not yet ascertained. 



Length of adult female 0.62 mm. 



Remarks. The present form is considered by Scott to be only a variety 

 of the preceding species. I think however that the differences indicated in the 

 above diagnosis may suffice for warranting its specific distinctness. 



Occurrence. Qi this species also only a small number of specimens 

 have as yet come under my notice. They were obtained from the same 

 samples as the preceding species. 



Distribution. Scottish coast (Scott). 



Gen. Pseudameira, G. O. Sars. 



Remarks. This genus was established by the present author in the 

 year 1911, to comprise 2 well defined species, both obtained at Korshavn. I 

 am now enabled to add 2 new species of this genus from another locality of 

 the Norwegian coast. 



50. Pseudameira gracilis, G. O. Sars, n. sp. 



(PI. XXXIX). 



Specific Characters. Female. Body much more slender and elongated 

 than in either of the 2 previously described species, with the anterior division 

 only slightly broader than the posterior. Cephalic segment equalling in length 

 the 3 succeeding segments combined and rounded in front; rostral prominence 

 small, but well defined, acuminate. Urosome about the length of the anterior 

 division and nearly smooth; genital segment comparatively large, equalling in 

 length the 3 succeeding segments combined, and distinctly subdivided in the 

 middle; last segment much shorter than the preceding one. Caudal rami con- 

 siderably produced, equalling in length the last 2 caudal segments combined, 

 and narrow linear in form; apical setae not much elongated. Anterior antennae 

 short and stout, not nearly attaining the length of the cephalic segment, but 

 composed of 8 well defined joints, the 2nd of which is the largest and of 

 rounded oval form, with the outer edge arcuate and clothed with stiff hairs; 

 terminal part, comprising the 4 outer joints, short, scarcely exceeding the 2 

 preceding joints combined, and clothed with long curved setae. Posterior 



9 Crustacea. 



