1868.] 



IIOLL SOUTH DEVOX AND EAST CORNWALL. 



433 



Species. 



Localities. 





II 



1 



^ 



Il 



"3 

 W 



1 



Spirifera undifera et var. undulata, Roem. 

 laivicosta, Val. 



*7 

 ^7 



... 



*4 

 * 



* 



* 



* 



* 



*5 



1 



speciosa, Schloth 



disjimcta, Sow 



Spiriferina cristata, var. octoplicata 



E/hynchonplla pleurodon, Phill 



Atrypa reticularis, Linn 



Pentamerus brevi rostris, Phill. 



Rhynchonella cuboides, Shy 



Strophomena rhomboidalis, Wahl. 



Streptorhynchus unibraculum, Schloth..,. 

 gigas, M^Coy 



■ crenistria, Phill. 



Lepta^na laticosta, Conrad 



interstrialis, Phill 



Orthis liipparionyx, Vanux 



resupinata, Mart 



granulosa, Phill 



Chonetes sordida, Phill 



simiradiata, Sow ,.,.. 



Hardrensis, Phill 



Aviculopecten polytrichus, Phill. 



Pterinea anisota, Phill. 



subradiata, PA«7i? 



Clidophorus ovatus, Phill. non Sow 



Modiola scalaris, Phill . 



Pleurotomaria aspera, Sow.'f 



Trochus Boneii, Stein 



Euomphalus serpens, Phill 



Bellerophon bisulcatus, Rom 



Porcellia Woodwardii, Sow 



striata 



Orthocei'as tentaculare, Phill 



Cyrtoceras bdellalites, Phill 



Phillolepis concentricus, Ag 



Scale of Holoptychius? 



Pteraspis (Scaphaspis) Cornubicus, M'Coy 

 Cephalaspis? Carteri, M'- Coy 









^ Murchison. ^ g^lt. Mon. Pal. Soc. ^ Pengelly. * Davidson. 



^ Davidson, in Col. Pengellii. ^ Salter. 7 Jermyn-Street Museum. 



3. Beds overlying the Plymouth and Torhay Limestones. — It has 

 been already stated that a long narrow inclined synclinal trongh 

 extends from Plymouth Sound to Tor Bay. The beds contained in 

 this trough consist of argillaceous slates similar to those which un- 

 derlie the limestones north of Devonport, They are well seen on the 

 coast at Jenny Cliff Bay between Mount Batten and Withy Hedge, 

 of which a section has been given by Prof. Phillips*. South of 

 Plimstock and Elburton this belt of rocks widens out to pass on 



* Pal. Fos. p. 201, Nos. 3 to 5 inclusive. 



2n2 



