331 



Pectinidae. 



Pecten groenlandicus Chemnitz. 



1901—02. Tasiusak 30—50 fms. 9 specimens. 



1899. Ödesund 5 — 15 — Stony ground with algae 



2 specimens. 



1900. Gape Dalton 9—11 — Clay with small stones 



1 fragment. 



1900. Off Henry-Land ca. 20 — Stones 1 valve. 



1900. Turner-Sound ca. 3 — 1 specimen and 1 valve. 



1891— 92. Hekla-Havn 3—11 — ca. 20 — 



1900. Hurry-Inlet 10 — Clay ca. 50 — 



1900. Fleming-Inlet 118 — Red Clay 



I valve (of a young one). 

 1900. The mouth of Forsblad-Fjord .14 — 3 — ca. 70 specimens. 



1900. Forsblad-Fjord 90—50 — Clay with sharp stones 



6 specimens. 



1900. Cape Borlase Warren 10 — Laminarians 1 — 



1900. Sabine-Island Laminarians 4 — 



The Norden ski old -Expedition of 1883 took 15 speci- 

 mens (long. max. 27*5 mm.) off Angmagsalik (6o°4Û' N. 35° 32' W.) 

 at a depth of 25—40 fms. and on clayey groimd. 



The Kolthoff- Expedition of 1900 took it in the following 

 locahties (comp. Hägg 1. с. p. 28), specimens of a length of 

 up to 26'5 mm.: 



SE. of Walrus-Island.. 74° 30' N. 42— 53 fms. Mud and stones 



Numerous spec. 

 SE. of Pendulum-Island 74°35'N. 79 — Mud and stones 



2 specimens. 



Pecten groenlandicus thus appears to be rather common 

 along East-Greenland. It has been found to occur from 65^/2° 

 — 74V2° N. and will most probably be found to reach as far 

 North as Greenland altogether. 



Pecten groenlandicus obtains a very considerable size of 

 up to a length of 28*5 mm. at East-Greenland, as in other 

 high-arctic regions. 



As it constantly is asserted that the left valve is consider- 

 ably larger than the right (compare for instance Hägg 1. с. 



