POST-TERTIARY FOSSILIFEROUS DEPOSITS. 91 



Loxoconcha impressa (Baird). 

 Xestoleberis aurantia (Baird). 

 Cytherura nigrescens (Baird). 



— angulata, Brady. 



— acuticostata, G. O. Sars. 

 Paradoxostoma Fischeri. G, 0. Sars. 



6. West Tarbert Silt. 



A bed of estuarine silt is found at West Tarbert, younger than the glacial clay 

 previously described, and entirely free from any remains of Arctic shells. 



The following Ostracoda were found 



"o 



Pontocypris mytiloides (Norman). 

 Cythere pellucida, Baird. 



— castanea, G. 0. Sars. 



— porcellanea, Brady. 



— crispata, Brady. 



— viridis, Miiller. 



— lutea, Miiller. 



— albo-macculata, Baird. 



— convexa, Baird. 



— cuneiformis, Brady. 



— villosa (G. O. Sars). 



— tuberculata (G. 0. Sars). 

 Loxoconcha impressa (Baird). 



— tamarindus (Jones). 

 Xestoleberis depressa, G. 0. Sars. 

 Cytherura nigrescens (Baird). 



— undata, G. 0. Sars. 



— striata. G. O, Sars. 



— cuneata, Brady. 



— gibba (Miiller). 



— cellidosa (Norman). 

 Paradoxostoma variabile (Baird). 



— Fischeri, G. 0. Sars. 



