1st joint of the inner, and having the middle joint much the largest, last joint 

 somewhat dilated, and aimed with ." geniculated spines of exactly same appearance, 

 though gradually increasing- in length distally: inner ramiis very slender, with the 

 1M joint scarcely at all dilate. 1 and t\\ice the length of the other ~2 eomliined. 

 apical claw slend. T and elongated. Natatory legs \\ith the basal part bent in an 

 elbow-like mann.'r. rami extending at right angle to the basal part, and extremely 

 narrow, being h-s-, unequal than in the preceding species; terminal joint of outer 

 i-annis in 4th pair with only a single seta inside. Last pair of legs with the 

 distal joint exeerdinglv narrow, linear in form, and ciliated on both edges, number 

 of marginal seta' as in >'. l<,it<ii<-<iitiltifn : inner expansion of proximal joint rather 

 -mall and narrouly exserted at the tip, with only .'! apical seise. 



Body pellucid, of whitish colour. 



Length of adult female 0.83 mm. 



/>'< ///"//>. The pre-ent species is easily distinguished from the preceding 

 .me. both by the general form of the body, and by the numerous slender hairs 

 clothing it both dorsally and laterally, the last named character having given rise 

 to the specific name here proposed. It also differs conspicuously in the structure 

 of some of the appendages, though on the whole agreeing in the more essential 

 characters, so as more properly t-> be regarded as congeneric with that species. 



Occurrence. Only a very limited number of specimens of this remarkable 

 form have hitherto come under my notice. They were taken partly in the upper 

 part of the Christiania Fjord, partly at Farsund, south coast of Norway, from 

 depths ranging from :>n to 50 fathoms, muddy bottom. 



G.n. 51. Phyllopodopsyllus, Scott, L906. 



Generic flim-m-l, r*. Body more or less slender, but comparatively strongly 

 built, with rather hard integument-. Anterior divison somewhat compressed and 

 having the l.-i-t -c^nieiit defined in front by a conspicuous constriction. Cephalic 



inent comparatively large and deep, projeet ing in front to a short and blunt 

 immobile rostrum. Urosome well developed and attenuated behind, genital seg- 

 ment (in female) large and some\\hat d>pie>-ed. being imperfectly subdivided in 

 the middle, L'nd --meiit produced at the end ventrally. <'aud;d rami more or 

 lamellarly expanded in>idr. and each earning on the tip a strong seta bul- 



isK dilated at the base. K\ . \\ell dexeloped. Anterior antenna' rather elon- 

 gated, and composed of s or H articulations, the 1 st o|' which is much the largest, 



