1913] SOME CLAY DEPOSITS IN THE S.-E. PART OF NORWAY 9 



Ouite near to the sea-level a bluish clay with stones were rising 

 to about three mehes and was covered with yellowish-grey clay 

 of the same physical and petrographical character to the thick- 

 ness of one metre and a half. This fossil-bearing clay deposit 

 was covered with a layer of sand, gravel, and stones of a 

 thickness of about half a metre ; in this gravel-layer we meet 

 with large ice-scratched blocks of quite the same kind as in 

 the ra-moraine itself. Out of the fossil-bearing clay I succeeded 

 in excavating the following species : — 



Portlandia arctica Gray var. siliqua. 



Nucula tennis Mont forma typica and var. expansa. 



Macoma calcaria Ghemn. 



Saxicava arctica L. 



Buccinum terrae novae Mørch. 



At the tile-work of Charlottenberg situated on the west 

 coast of the Island of Jelø I, likewise, in the month of Juni 1899 

 had a good opportunity to study a similar deposit of brick-clay 

 as in the two above mentioned localities and to collect fossils 

 from the different layers. Later on I have also tåken a great 

 interest in revisiting this locality. Along the present sea-shore, 

 a little lower than the shore-line itself, we are richly favoured 

 in studying the present shallow-water life from which to draw 

 some conclusions as compared with the fossils which we are 

 digging out of the stoney clay rising in bluish and grey slopes 

 covered with flourishing Tussilago farfara L. to the height 

 of about ten metres above the present sea-level. 



The present littoral and sub-littoral fauna is especially repre- 

 sented in fine specimens of the following species: — 



Mytilus edutis L. Very common. Length 80 mm. Many 

 different varieties occur, the typical one as well as streaked and 

 banded ones. The shape of this species may be a more rug- 

 ged one or a fine, slender one. 



Cardium edule L. is very numerous, but occurs, however, 

 only in rather small varieties the most common of which is that 

 well-known one with thin shells of a rounded or ovate shape. 

 Sometimes also small oblique specimens may be seen. 



