352 



Cardiidae. 



Cardium ciliatum Fabricius. 



1901—02. Angmagsaîik 30 — 50 fnis. 2 specimens. 



1891—92. Danmarks-Ö 4 — 



1900. Hurry-Inlet 10 — Clay 5 — 



1900. The mouth of Forsblad -Fjord. . 14-3 - 3 - 



The Kolthoff-Expedition of 1900 toolc 2 specimens in 

 Maclienzie-Bay (N. of Franz Joseph-Fjord) at a depth of 6V2— 

 19 fms. and on muddy ground (Hägg 1. с. p. 62). 



The largest specimen, one of those from Mackenzie-Bay, 

 measures 62 mm., the next, one of those from Forsblad-Fjord, 

 is of a length of 57 mm. Thus the species obtains a con- 

 siderable size at East-Greenland. 



In a fossil state it has been found by the Danish Ex- 

 pedition of 1891 — 92 in the «Terrassepynt« on the east-side of 

 Rypefjord, inner Scoresby-Sound. I have not seen the speci- 

 mens, but they have been determined by Posselt'). 



Nathorst also records it as fossil from a locality in the 

 northeastern Greenland, namely at the mouth of Sophia-Sound 

 at a height of 25 — 50 meters above the sea-level^), 



Cardium elegantulum (Beck) Moller. 



1899. Tasiusak. . 20—30 fms. Stony ground with a few algae 1 specimen. 



This specimen is of the following dimensions: length 12mm,, 

 height 9 mm., breadth 6'5 mm. 



G. 0. Sars as well as H.J. Posselt state North America's 

 east-coast to be the home of this species, but undoubtedly in- 

 correctly. Both authors most likely suppose Cardium elegantulum 

 to be American because it has been introduced by Gould in 

 his work over Massachussett's Invertebrata^), Gould however 



M Medd. om Grønland, XIX, 1896, p. 173. 



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



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

 *) Gould & Binney: Rep. Invert. Mass., sec. ed., 1870, p. 141. 



