20 

 9. Scina borealis, G. O. Hars. 



(PI. 8). 

 Clydonia horealix, G. 0. Sars, Oversigt af Norses Crustaoeer I, p. 75, jjI. 3 fig. 1. 



Cftplialon more deep than long, with a pair of small tubereuliform jjro- 

 jections just above the insertioiin of the superior anteiinEe. The latter about 

 half as long as the body, excepting tlie iirosome; proximal joint of the 

 tlagellum serrated at both edges, more minutely at the superior one, its basal 

 portion somewhat more incrassated in tlie male tlmn in the female and 

 densely hairy. Inferior antennae in male aliout as long as the body, last 

 joint of the peduncle very elongated, fiagellum 5 — fi-articulate. Propodal joint 

 of 1st pair of gnathopoda shorter than tlie carpal joint, tliat of 2iid j)air 

 about as long as the latter. Tliird i)air of pereiopoda longer than the 4tli ; 

 basal joint serrateil on lioth edges and jutting out at the end as an acumi- 

 nated process overhanging the ischial joint, propodal joint about half as long 

 as tlie carpal one. Last pair of pereiopoda scarcely half as long as the 

 penultimate one, liasal joint about tlie length of the remainder part of the 

 leg. First pair of uropoda strongly denticulated on tlie inner edge, 

 exterior ramus lioth in this and tlie succeeding pair olisolete, that of the last 

 pair about as long as the basal portion. Telson acnitely triangular. Body 

 very pellucid, with light red inte.stine and oral region, and Avith .scattered 

 reddish pigmentary spots on the jiosterior division. Length S nun. 



RcnKtrlcs. — The species establisheil liy Dr. Bovallius under the naine 

 of Tyro CJami is very nearly related to, if not identical with, tlic present 

 species, only differing by the 3rd pair of pereiopoda being somewdiat shorter 

 and by the poor development of the propodal joint of these legs. Li all 

 other respects, and especially in the structure of the urosome, witli its several 

 appendages, it agrees exactly witli tlie noithern form. 



Occnrrenec. — I iirst detected this interesting Hy})erid many years 

 ago at Lofoten. It occui'red here only at very great depths from 200 to 

 300 fs. Subsequently I have met witli this form also in two other localities 

 on our coast, viz., in the outer pai't of the Drontheimstjord at Bejan, and in 

 the Christianiaijord at Hanko. Here also it was only pmi'ui'ed from com- 

 paratively great dejiths (100 — loO fs.) by the aid of the dredge or a tine 

 hand-net Hxed to the dredge rope at a short distance from the dredge. 



