LAMKLLIBKAXOIIATA. 



I I I 



Klaksvig 6— 10 fm. i spec. 



r ° — 15 " [O — & many valves. 



11 - , from Laminaria rhizoids. 18 



Arnefjord 0—15 - , hard ground. 1 



Bordovig 7 — 10 - , black sand and small stones. 1 valve. 



— 10 - , sand with Laminaria. 4 spec. 



Andefjord 16 — 23 - 4 — 



Kongshavn 12 — 16 - , small stones, sand and ooze. 2 — 



— ca. 50 - ca. 25 spec. & 90 valves. 



Vestmanhavn 37 2 — 5 - , fine black sand. 80 spec. 



5—6 - , fine black sand. 6 — & 40 valves. 



to - 1 — 



10— 30 - 3 valves. 



Sorvaag 14— 16 1 _, - , ooze. 1 spec. & 2 valves. 



Nolso, beach 1 valve. 



Trangisvaag i J / 4 — 3 - 1 spec. & 2 valves. 



— 6— S - 1 valve. 



Vaagfjord barely 1 - 1 spec. 



10 - 1 — 



S. W. of Myggenses 135 - 1 valve 1 ). 



i l / 2 — 2 miles off the mouth of Bordovig 20 — 30 - 1 spec. & 1 valve. 



Remarks. The material to hand from the Faeroes, Iceland and fTreenland shows, that both 

 the form and sculpture vary to a great degree in Astarte elliptica. 



At the Fceroes, however, the character is fairly uniform, it seems. The species appears here 

 with strongly marked folds right from the umbones down to the ventral margin and they only disappear 

 at the very back. It is only in a single specimen that the folds become indistinct a little below the 

 middle of the shell. The form is not specially variable, on the whole rather elongated, more or less 

 compressed, sometimes however somewhat vaulted. Measurements of some of the specimens which 

 differ in dimensions give the following result: 



Height Breadth 



Length Height T ., Breadth ,, , , 



s Length Height 



30 mm . 23 mm . 76.8", , II """. 36.7 



3 1 23.5 - 75.8 - 12.5 - y.\ - 

 31.25 - 22.5 - 72 - 14 - 448 - 



At Iceland, on the other hand, we very frequently find forms which lack the folds over a 

 greater or smaller part of the shell; sometimes the folds disappear below the middle of the shell, in 

 other specimens they only reach to the middle of the shell, and some specimens even have folds only 



') The shell from this considerable depth lias a very ancient ("fossil" appearance 



