POST-TERTIARY FOSSILIFEROUS DEPOSITS. 



91 



Loxoconcha impressa (Baird). 

 Xestoleberis aurantia (Baird). 

 Cytherura nigrescens (Baird). 



— angiilata, Brady. 



— acidicostata, G. 0. 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 : 



Pontocypris mytiloides (Norman). 

 Cy there pellucida, Baird. 



— castanea, G. O. Sars. 



— porcellanea, Brady. 



— crispaia, Brady. 



— viridis, Midler. 



— lutea, Miiller. 



— albo-macculata, Baird. 



— convex a, Baird. 



— cuneiformis, Brady. 



— villosa (G. O. Sars). 



— tuhercidata (G. 0. Sars). 

 Loxoconcha impressa (Baird). 



— tamarindus (Jones). 

 Xestoleberis depressa, G. O. Sars. 

 Cytherura nigrescens (Baird). 



— undata, G. 0. Sars. 



— striata. G. O. Sars. 



— cuneata, Brady. 



— gibba (Miiller). 



— celhdosa (Norman). 

 Paradoxostoma variabile (Baird). 



— Fischeri, G. 0. Sars. 



