398 
away, but it is uot witbout interest to note that there has beeii 
made several direct observations which confirm that it is reallv 
the case. 
The records of the occurreiice of shallow water shells on the 
ice which I have hitherto observed are as follows: 
1) M o bilis writes in „Mollusken“ etc. in the report from „Die 
zweite deutsche Nordpolarfarht“, Leipzig 1874, Bd. 2: „Neben 
den Eislochern, aus denen die Wallrosse auftauchen lagen 
Haufen von Schalen“ triincatci]. 
2) C o 11 i n States in the report on the Mollusca from the Danish 
Dijmphna-Expedition (1887) that Mytilus edulis L. has been 
found on fioating ice in the Kara-Sea. (9 living specimens and 
some valves) ^). 
3) Edv. Baj remarks^), that shells are present in the claj trans¬ 
ported bj the ice-stream which is moving along the east-coast 
of Greenland. He mentions two species: Astarte horealis Chemn. 
(= A. semisulcata Leach), and Lyonsia arenosa Moller. 
4) Posselt writes^) that the Danish East-Greenland Expedition 
of 1892 brought home two specimens of Lyonsia arenosa found 
on fioating ice near Jan Majen. 
The found shallow-water shells maj, perhaps, partlj have lain 
on the bottom of the sea for thousands of jears. What number 
of shells the fioating ice in the course of time maj have been 
able to deposit here is rather incalculable. In mj opinion it is 
In a previous paper: „Om Aflejringen af Molluskernes Skaller“ etc. 
p. 43 Anm. (Vid. Med. Naturh. Foren. Kjøbenhavn 1901) I have 
wronglj attributed this statement to L e c h e. 
2) Edv. Baj: Drivisens Transport af Grus, Ler og Sten langs Grøn¬ 
lands Østkjst“ etc. Meddelelser om Grønland. Hefte 19. Kjøhen- 
havn 1896. 
H.J. Posselt: I. „Østgrønlands Mollusker^. Meddelelser om Grøn¬ 
land. Hefte XIX. Kjøbenhavn 1896 p. 75. IL „Grønlands Brachio- 
poder og BloddyrMeddelelser om Grønland. Hefte XXIII. Kjøben¬ 
havn 1898 p. 92. (Posselt probablj refers to the same finding 
as Baj.) 
