POST-TERTIARY FOSSILIFEROUS DEPOSITS. 



7L 



Mya truncata . 

 Mytilus edulis . 

 Balanus erenatm 

 Fry of Gasteropoda. 

 Claw of Crustacean. 



Fry, one valve. 

 Fragments. 

 One plate. 



The foUovvino; Ostracoda were found 



Cypris compressa, Baird. 



— ovum (Jurine). 



— ffibba, Raradohr. 

 Fontocypris mytiloides (Norman). 



— trigonella, G. 0. Sars. 

 Cy there castanea, G. O. Sars, 



— tenera, Brady. 



— lutea, Miiller. 



— pulchella, Brady. 



— villosa (G. O. Sars). 



— concinna, Jones. 



— angulata (G. O. Sars), 



— tuherculata (G, O. Sars). 

 Limnicythere inopinata (Baird), 



— antiqua, n. sp. 

 Cytheridea papulosa, Bosquet. 



— punctillata, Brady. 



— lacustris (G, 0. Sars). 

 Loxoconcha tamarindus (Jones). 

 Cytherura nigrescens (Baird). 



26. Errol, Perthshire. 



On the north side of the River Tay, eight miles east from Perth, a clay is exposed 

 remarkable for the intensely Arctic character of its fossils. 



1. Its surface is covered by the estuarine mud of the Tay. 



2. The deposit of clay itself occupies a small oval trough about one mile in length 



