354 



Nathorst has also found it fossil in the north-eastern 

 Greenland, at the mouth of Sophia-Sound at a height of 25 — 

 50 meters above the sea-level M. 



Myidae. 



Mya truncata Linné. 



1899. Cape Dan 10 — 15 fms. Rocky ground with algae. 1 specim. 



1899. Tasiusak 20—30 — 1 valve (of a young one). 



1901—02. Angmagsalik. . . V2— ca. 5 — 8 valves. 



1901—02. Ingmikertok .. 10— ca. 30 — 1 specimen (tiny). 



1901—02. Tiningnekelak. . . 5—10 — 3 — and 3 valves. 



1900. Cape Dalton 7 — 11 — Fine clay with small stones 



6 specimens (young). 



1900. Henry-Land 20 — 2 valves (young). 



1900. Turner-Sound 2-0 — 1 valve. 



1900. Turner-Sound 3 — A siphon of a large specim. 



1891 — 92. Hekla-Havn 5 — Mud 10 specim. (young ones and 



half grown specimens). 



1900. Hurry-Inlet 7-0 — Sand and clay 1 spec, (young one). 



1900. Hurry-Inlet^ 10 — Clay 4 — and 1 valve. 



1900. Cape Borlase Warren 10 — 3 valves. 



1900. Sabine-Island Laminarians I valve. 



The Nor den ski old -Expedition of 1883 took empty valves 

 of this species off Angmagsalik at a depth of 25 — 40 fms. 



The Kolthoff-Expedition of 1900 took it in Mackenzie- 

 Bay, N. of Franz Joseph-Fjord at depths of 6V2 — 19 fms. (3 

 specimens) and of 6V2 — 10 fms. fl specimen), on muddy ground 

 (Hägg I. с p. 55). 



The Germania-Expedition took it at Sabine-Island at a 

 depth of 10—20 fms. 



The recorded captures give naturally — on account of the 

 burrowing habit of the animal — no reliable conception of the 

 animal's frequency. The following lines quoted from M obi us 

 (1. с p. 252) shows that Mya truncata occurs in great abun- 



A. G. Nathorst: Bidrag till nordöstra Grönlands geologi; Geol. Foren, 

 Forhandl. Bd. 23, 1901, p. 304. 



