334 



1900. Turner-Sound ca. 3 fms. 10 specimens. 



1891—92. Hekla-Havn 12 - 



1900. Hurry-Inlet 7—0 — Clay and sand 1 — 



1900. The mouth of Hurry-Inlet 10 — Clay 7 — 



1900. Cape Borlase Warren.... 10 — 8 — (4 empty). 



1900. Sabine-Island 3—5 — 5 — (4 empty). 



The majority of the specimens at hand which reach a 

 length of 24 mm. belong to the variety Warhami (== Ästarte 

 Warhami Hancock, Ann. Mag. Nat. Hist. vol. 18, 1846, p. 336, 

 PI. 5, Fig. 15 — 16) which is characterized by a lengthened shape 

 of the shell, elliptical and generally rounded both in front and 

 behind; the umbo is situated almost in the middle of the border 

 of the shell. Generally the shell is rather compressed, but some- 

 times rather ventricous. The concentrical ribs frequently quite 

 reach the ventral margin, but other specimens are only ribbed on 

 the umbonal part or to the middle of the shell, while the rest of 

 the shell only shows fine lines of increase (= Astarte fabula 

 Reeve, in Belcher: The last of the Arctic Voyages, vol. И, 1856, 

 p. 398, PI. 33, Fig. 5 a, b). 



Some specimens belong to the variety striata (== Ästarte 

 striata Leach) which according to my opinion only is a shorter 

 form of Warhami ^). It is not correct to distinguish them by 

 the different colour of the periostracum as the variety Warhami 

 for instance may begin as straw-coloured and end as dark brown. 



At last there are a few specimens of a generally higher, 

 more or less triangular form, with fine lines of increase but 

 without ribs and with a shining periostracum ^).* 



Ästarte Banksii was previously taken by the Germania- 

 Expedition at the north-eastern Greenland, namely at Jackson- 

 Island (Möbius I.e. p. 251, s. n. »Astarte compressa Montagu»). 



In a f s s i I state it has been found in the following localities : 



^) Such a shorter form is figured by Pos seit as: Astarte Banksii heath 

 var. Warhami in his Östgrönl. Mollusker, Tav. I, Fig. 3—4. 



^) Such a form is figured by Posselt as: Astarte Banksii Leach (1. с 

 Fia. 1-2). 



