157 

 9. Harpinia mucronata, G. 0. Sars. 



(PL 54, fig. 3). 

 Harpinia mucronata, G. 0. Sars, Crustacea & Pycnogonida nova etc. No. 22. 



Body rather compressed and <]uite glabrous above. Cephalon about 

 the length of the 4 anterior segments of mesosome combined, hood but slightly 

 convex above, and projecting considerably beyond the peduncle of the superior 

 antennae. The 3 anterior pairs of coxal plates each with a small dentiform 

 projection at the infero-posteal corner, marginal setae few in number; 1st pair 

 rather expanded distally; 5th pair somewhat smaller than in the 2 preceding 

 species. Last pair of epimeral plates of metasome drawn out to a long, 

 slightly upturned, spiniform projection. Antennae rather slender, with the 

 flagella more elongated than in the said species; accessory appendage of the 

 superior ones but little shorter than the Hagellum. Gnathopoda of moderate 

 size, hands oblong oval, with the palmar edge slightly exceeding in length 

 the hind margin. Penultimate pair of pereiopoda not very slender and scarcely 

 exceeding half the length of the body; last pair very small, basal joint 

 less expanded than usual, but drawn out at the infero-posteal corner to a 

 posteriorly-pointing acute spur-like projection, defined above by a small excava- 

 tion and having below a few slight serrations. Last pair of uropoda somewhat 

 larger than in H. propinqva but otherwise of much the same structure. Lobes 

 of telson obtusely truncated at the tip. Colour greyish white. Length of 

 adult female slightly exceeding 5 mm. 



Eemarks. The present species is at once recognized by the peculiar 

 form of the basal joint of the last pair of pereiopoda, a characteristic which 

 gave rise to the specific name proposed by the author. 



Occurrence. - Some specimens of this form were procured during the 

 Norwegian North Atlantic Expedition, on 2 different Stations, both lying 

 immediately outside the coast of Finmark, depth from 148 to 620 fathoms. 

 Another specimen, exactly agreeing with the former, and preserved in the 

 Stockholm Museum, was taken by von Yhlen on the great fishing banks in the 

 North Sea. The species may thus properly be referred to the fauna of Norway. 



Distribution. Greenland (Hansen). 



10. Harpinia truncata, G. 0. Sars, n.sp. 



(I>1. 55, fig. 1). 



Body rather robust, with broadly vaulted back. Cephalon considerably 

 shorter than the 4 anterior segments of mesosome combined, hood very slightly 

 convex above and projecting beyond the peduncle of the superior antennae. 

 The 3 anterior pairs of coxal plates without any dentiform projection 



