622 Ad. s. Jensen. 



made by the Nathorst Expedition in raised strata at Sophia Sound 

 and Franz Josephs Fjord'); also, moreover, from the specimens of 

 Pecten islandiciis found by the Ryder Expedition in late-quaternary 

 deposits at Scoresby Sound ^). 



Another point worthy of note is the fact that marine quaternary 

 mollusc shells were met with by the Danmark Expedition up to a 

 height of some 125 metres above sea level, which is far in 

 excess of the greatest altitude noted in hitherto published finds from 

 East Greenland, none of which go up beyond about 50 metres. 



The material comprises in all 18 species of determinable molluscs, 

 besides one serpulid, one Balanus species, and 1 echinoderm, apart 

 from Foraminifera and calcareous algæ fLithothamnionJ. 



The determinable species are as follows: 

 Lamellibranchiata : 



Yoldia fPortlandiaJ arctica Gray, 



Modiolaria lœuigata Gray, 



Pecten islandiciis Müller, 



Astarte Banksii Leach, 



Astarte borealis Chemnitz, 



Axiniis flexuosus Montagu, 



Tellina fMacomaJ calcaria Chemnitz, 



Tellina fMacomaJ Loveni Steenstrup, 



Cardium ciliatum Fabricius, 



Cardium (jroenlandicum Chemnitz, 



Mya tnincata L., 



Cyrtodaria Kurriana Dunker, 



Saxicaua arctica L., 



Thracia septentrionalis Jeffreys. 

 Gastropoda: 



Natica affinis Gmelin, 



Trophon clathratus L., 



Buccinum Belcheri Reeve, 



Sipho (Tritonofusus) Kröyeri Möller. 

 Serpulidæ : 



Apomatus globifer Théel. 

 Balanidæ : 



Balanus porcatus da Costa. 

 Echinidæ : 



Strongylocentrotus dröbachiensis Müller. 



^) A. G. Nathorst: Bidrag till nordostra Grönlands geologi. Geol. Foren. Forhandl. 



Vol. 23, 1901, p. 304. 

 -) Ad. S. Jensen : On the Mollusca of East Greenland, I. Lamellibranchiata. With an 



introduction on Greenland's fossil mollusc-fauna from the quaternary time. Meddel. 



om Grønland XXIX, 1909, p. 301—02. 



