POST-TERTIARY FOSSILIFEROUS DEPOSITS. 



77 



Cytheridea papillosa, Bosquet. 

 Loxoconcha impressa (Baird). 

 Cyiherura undata, G. 0. Sars. 

 — • similis, G. O. Sars. 



— Sarsii, Brady. 



— celluJosa (Norman). 



— dathrata, G. 0. Sars. 

 Ci/iheropteron latissimum (Norman). 

 SclerocliUus contort us (Norman). 



31. Annochie, Aberdeenshire. 



At Annochie, about five miles north of Peterhead, a bed of fine fossihferous day 

 occurs, passing immediately from the shore under the beach, thus occupying the same 

 position as many outcrops of clay along the Clyde. As in the corresponding Clyde 

 beds, such species as Awinus jlexuosus, Leda jjygmcea, and Nuada tenuis are ve]'y 

 abundant. 



Height a few feet above sea-level, the bed passing under the beach. 



The following Ostracoda were found : 



Cythere ylobuV/fera, Brady. 



— Dunelmensis (Norman). 

 Cytheridea inornata, n. sp. 

 Cytkerura coiiipjlanata, n. sp. 

 Cytheropteron latissimum (Norman). 

 — Montrosiense, n. sp. 



B. — Arctic Shell-beds. 



Although we have grouped together in one class the sands and clays characterized by 

 an Arctic fauna, it does not necessarily follow that they belong to one period only of the 

 great Glacial Epoch. 



In many of the periods (possibly marked by fluctuations in the intensity of 

 the climate) comprised within the epoch during which an Arctic climate prevailed and 

 disappeared, marine clays must have been deposited and become the habitat of species 

 now relegated to the Arctic circle. 



