317 



Leda minuta Müller. 



1901—02. Ingmikertok. . 10— ca. 30 fms. 3 valves. 



The valves are of a rather recent appearance; their maximum 

 length is 11 mm. 



Yoldia (Portlandia) arctica Gray. 



1900. Cape Dalton . . . 9 — 11 fms. Fine clay with small 









stones 



3 specim. (empty). 



1900. 



Turner-Sound . . 



ca. 3 — 





23 — (the 8 empty) 



1891- 



-92. Hekla-Havn 



ca. 12 — 





2 — (one empty) and 

 1 valve. 



1900. 



Hurry-Inlet .... 



7—0 - 



Clay and sand 



140 — 



1900. 



Fleming-Inlet . . 



118 — 



Red clay 



15 - 



1900. 



Forsblad-Fjord . 



14—3 — 





1 ^ (empty). 



The largest specimen is from Hekla-Havn and is of a 

 length of 25'25 mm., of a height of 14 mm., and of a breadth of 

 9'75 mm. Among the specimens from Turner-SouDd and Hurry- 

 Inlet the largest have a length of 24 mm.; among those from 

 the great depth (118 fms.) in Fleming-Inlet the largest only 

 measures 14 mm. 



The vast majority of the East-Greenland specimens, which 

 I have at hand, belong to the variety portlmidica Reeve; this 

 is a lengthened, low and proportionally compressed form of 

 which I shall state some measures: 

 Length. 



a. Turner-Sound 25 mm. 



b. — — 23-5 — 

 с Cape Dalton 195 — 

 d. Turner-Sound 16 — 

 A very few specimens on the contrary approach the variety 



siliqua Reeve by a shorter, higher, and more ventricous shape, 

 what will be seen from the following measurements: 



Length. Height. Breadth. 



a. Turner-Sound 22-25 mm. 13-5 mm. 9-5 mm. 



b. — — 18-25 — 11-5 — 8 — 

 с — — 18 - 10-75— 7-75 — 



Height. 



Breadth. 



13-5 mm. 



9-5 mm. 



13-25 — 



8-75 — 



11 — 



7 — 



9-2 — 



5-75 — 



