156 



pereiopoda. In the latter respect, it has some resemblance to H. pectinata, 

 but is otherwise rather different. 



Occurrence. - The occurrence of this species off the coast of Norway 

 is somewhat questionable, since the earlier statement of the author, of its 

 being observed in the Varangerfjord, was most probably based on a confu- 

 sion of this species with H. pectinata. 



Distribution. - - Jan Mayen (Norw. North Atlantic Exped.). 



8. Harpinia propinqva, Gr. 0. Sars, n. sp. 



(PI. 54, fig. 2). 



Body more slender than in the last species. Cephalon nearly as long- 

 as the 4 anterior segments of mesosome combined, hood evenly vaulted and 

 projecting considerably beyond the peduncle of the superior antennae. Coxal 

 plates comparatively smaller than in H. serrata, with a far smaller number of 

 marginal seta? ; 1st pair moderately expanded distally ; 5th pair with the 

 posterior lobe less deep. Metasome somewhat stronger than in H. serrata and 

 finely hairy above; last pair of epimeral plates produced to a very short 

 dentiform projection. Antenna? somewhat more slender than in the said spe- 

 cies. Grnathopoda likewise less robust,, hands oblong oval, with the palmar 

 edge very oblique, though scarcely longer than the hind margin. Penultimate 

 pair of pereiopoda rather slender, about half the length of the body; last 

 pair with the basal joint obliquely heart-shaped, posterior expansion scarcely 

 reaching to the end of the meral joint, and only very obscurely serrated. 

 Last pair of uropoda short, inner ramus about the length of the basal joint 

 of the outer, and simple mucroniform, outer ramus with 3 spines exteriorly, 

 terminal joint exceeding half the length of the basal one, and spiniform. 

 Lobes of telson rather short and rounded at the tip. Length of adult female 

 scarcely reaching 5mm. 



Remarks. - This species would seem to be most nearly related to H. 

 neglecta, from which it, however, may at once be distinguished by the much 

 smaller projection of the last pair of epimeral plates of the metasome, as 

 also by the indistinct serration of the basal joint of the last pair of pereio- 

 poda. In the structure of the uropoda it more resembles H. plumosa. 



Occurrence. A few specimens of this form were collected during the 

 Norwegian North Atlantic Expedition, in company with H. serrata, off Jan 

 Mayen, but were, at that time, overlooked. Off the coast of Norway, it has 

 not yet been observed, and it is only here described, in order to show its 

 relationship to the other species. 



