PLATE 44 



Dalmanella sp. cf. concinna Hall 

 1—3 Three views of a mature specimen 

 4, 5 A young specimen, x 2 



67 Alhaii beds. Cape Rosier Cove 



Dalmanella subcarinata Hall 



Page 112 



6, 7 Cardinal and profile views 



St Alban beds. Cape Rosier Cove 



Dalmanella lucia (Billings) 



Page 204 



8, 9 Views of Billings's original specimen 

 10, I r Dorsal and profile of another example, x i^ 

 12, 13 An incomplete specimen, x 1^/2 

 14 Interior of dorsal valve, x i^^ 

 15^17 Views of a silica replacement, x i^^ 

 18 Interior of a dorsal valve, x i}4 



Grande Greve limestone ; division 2. Grande Greve 

 19, 20 A silicified shell having the characters of this species 

 Oriskany limestone. Glenerie, N. Y. 



Schizophoria ? amii nov. 



Page 204 



2 1 Internal cast of ventral valve 



22-24 Ventral and profile and dorsal views, x i^ 



25 A dorsal valve 



Grande Greve limestone. Grande Greve 



340 



