322 



Inlet, namely 23 ram. (from a depth of 50 fms.) and 24 mm. 

 (from 10 fms.). 



The Kolth off-Expedition of 1900 took it in the following 

 locahties : Franz Joseph-Fjord, inner part of Myskoxe-Fjord, 

 53 fms., clay (15 specimens); Franz Joseph-Fjord, outer part 

 of Myskoxe-Fjord, clay, 116 fms. (11 specimens); Mackenzie- 

 Bay N. of Franz Joseph-Fjord, 6V2— 19 fms., mud (31 spe- 

 cimens); off Mackenzie-Bay, 53 fms., mud (25 specimens). The 

 maximum length was 27"8 mm. (Hägg 1. с. p. 17 — 19). 



Area pectunculoïdes Scacchi 

 var. septentrionalis G. 0. Sars. 



1891—92. 72°24'N. 19°42'W. 130 fms. 1 specimen. 



1891—92. 74° 17' N. 15°20'W. 127 — Clay with stones 1 — and 1 valve. 

 1900. SE. of Sabine-Island 110 — 1 — and 1 valve. 



The largest specimen was of a length of 12*5 mm. 



The Kolth off- Expedition of 1900 took a specimen off 

 the north-eastern Greenland (72° 25' N. 17° 56' W.); the depth 

 was ca. 160 fms. and the bottom consisted of stones and sand. 



Mytilidae. 



Mytilus edulis Linné. 



1891 — 92. ïasiusak Between tide-marks 1 specimen. 



1898—99. Tasiusak 1 — and 8 valves. 



1901—02. Tasiusak Numerous specim. 



1901—02. Tasiusak — ca. 5 fms. Numerous specim. 



1901—02. Tasiusak V2 — 5 — Numerous specim. 



1901 — 02. Tasiusak 10—5 — 1 specimen. 



1901—02. Angmagsivik '/2— ca. 5 — 2 — 



The largest specimen is of a length of 84 mm. 



All the East-Greenland specimens, which I have seen, 

 belong to a rather elongated form what will be seen from the 

 following measurements: a) length 84 mm., height 40 mm.; b) 

 length 80 mm., height 34 mm.; c) length 68 mm., height 33 mm.; 

 d) length 70'5 mm., height 31 "5 mm.; e) length 66 mm., height 



