26 JAMES A. GRIEG. [SEC. ARCT. EXP. FRAM 



Both specimens belong to the variety expansa, G. 0. SARS. The 



spiral striation in both is but slightly developed. The groove on the 



columella in the specimen from the winter harbour is deeper, narrower 



and shorter than in the other specimen. The largest specimen measures: 



Long. 19 mm., Lat. 15.5 mm. 



A specimen found by the Nares Polar Expedition in the stomach 

 of a plioca barbata near Franklin Pierce Bay, Grinnell Land, had a 

 length of 21 mm. At Spitsbergen the species attains a length of 23 mm. 



Onchidiopsis groenlandica, BERGH. 



Locality: 



July 26. 1900. The west side of the entrance to Stordalen, Havnefjord, 20 m. Clay. 

 A very contracted specimen. 



Natica, lunatia, groenlandica, BECK. 



Locality: 



July 8. 1901. Rcnbugten, about 20 in. An empty shell of the typical form. Alt. 

 26 mm., Lat. 25.5 mm. 



Aug. 16. The head of the Gaasetjord. about 14 m. A rather young specimen 

 (Alt. 14.5 mm., Lat. 12 mm.) belonging to the form pallida, BRODERIP 

 & SOWERBY. The shell is pale yellowish horn-colour, spiral sculp- 

 ture extremely fine, operculum yellowish-brown and without calca- 

 reous partition. 



Natica clausa, BRODERIP & SOWERBY. 



Locality: 



July 15. 1902. Off Havhestfjeld, North Devon. One specimen belonging to the 

 typical form (natica affinis, GMELIN). 



Alt. 23.5 mm.. Lat. 21.5 mm. Spiral sculpture wanting. 



Bela harpularia, COUTHOUY. 



Locality: 



July 26. 1900. The entrance to Stordalen. Havnefjord. A rather worn empty shell, 

 10.5 mm. 



Both in outward appearance and in sculpture tbe specimen exactly 

 corresponds with the West Greenland and North American form of bela 

 harpularia of which I have had two specimens from Georger Bank for 

 purposes of comparison. Therefore although the specimen is not in a 

 very good state of preservation it must undoubtedly be referred to this 

 species. It differs from the Greenland bela woodiana, which it closely 

 resembles, in having a more slender form, less prominent carina, fewer 

 ribs - I counted 17 ribs on the last whorl, while according to POSSELT 

 bela n-oodiana has 2025 ribs -- and a finer spiral sculpture. 



