r.AMKI.UP.R AXCIIIATA 



"3 



Figs. 4c and d represent a very elongated form (var. depressa Posselt), from East Greenland. 

 Figs. 4 c and f show a very high land ventricose) form (var. crassa L,eche), from West Greenland. 

 Fig. 4g shows a specimen in which the folds disappear almost about the middle of the shell. 

 From West Greenland. 



Distribution. Astarte elliptica is an arctic-boreal species, known from the east coast oi North 



America down to New England, from Greenland, Iceland, the Faeroes, British Isles, Danish waters 



down to Bornholm, Norway, north coast of Russia, Kara Sea and Spitsbergen. The bathymetric 



distribution is 3 — 235 fin. 



Astarte crenata Gray. 



PI. IV, figs. 5 a -m. 



Nicania crenata Gray, Parry's first voyage, Suppl. to Append., [824, p. 242. 



Astarte crebricostata Morch, Rink's Gronland, 1X57, p. 91; Yidensk. Medd. Naturh. Foren. 1S6S, p. 222; 

 Arctic Manual, 1S75, p.131; Rink's Dan. Greenland, 1877, p. 441. —Astarte crenata Posselt, 

 Medd. om Gronland, XIX, 1895, p. 71 ; ibid., XXIII, 1898, p. 64; Jensen, ibid., XXIX, [9 19, p. 337. 



The "Ingolf" has taken this species at various stations and in three varieties, namely: 



forma typica 

 St. 29. Davis vStrait 6S fm. 



0.2 C. 



1 spec. 



St. 



32- 

 3 1 - 



35- 

 28. 

 27. 



"5- 



var. subcequilatera Sowb. 

 Davis Strait ^18 fm. 



Jan Mayen 86 - 



St. 116, 



- 15 



- 124 



- 126 



- 128, 



- 106 



3 



St. 127 



var. acuticostata Jeffr. 



S. of Jan Mayen 371 fm. - 0.4 C. 



X. W. of Iceland 330 - - 0.75 - 



N. of Iceland 495 - 0.6 ° 



293 " - 0.5 ° - 



- - 194 - 0.6 



E. of Iceland 447 - 0.6 ° - 



Between Faeroes and Iceland... 272 - 0.5 ° - 



nected or separated valves. 



Numerous spec. 



1 spec. 



Numerous spec. 

 1 valve. 

 1 spec. 



5 



3 spec. X 1 valves. 



and also at the following station, where' the variety cannot be determined 



N. of Iceland. 



14 fm. 



5.6 C. 



The [ngolf-Expcdition. II. 



i spec. X 1 valve (both small 1. 



15 



