Diaphorostoma desmatum Clarke 



Page 149 



17 An internal cast 



19 The sculpture, x 5 



20, 21 An individual showincr the surface characters 



Grande Grevc limestone ; divisions i and 2. Grande Greve 



Diaphorostoma sp. 



Page 149 



18 A small shell with coarser sculpture and different contour than the 



foregoing, x 2 

 Grande Greve iinicstonc. Indian Cove 



Diaphorostoma perceense nov. 



Page 14Q 



2 2, 23 Two views of an average example showing size, contour and surface 



Grande Greve limestone. Perce Rock 



283 



