PLATE 30 

 Camarotoechia dryope (Billings) 



Page 112 



1 A dorsal valve 

 Locality. Edmunds 1 lill 



Camarotoechia sp. 



Page 112 



2 Cast of a ventral valve 



Locality. Edmunds H 



Spirifer macropleuroides Clarke 



Page 119 



3 Dorsal view of the type specimen 



4 Enlargement of the surface 

 Locality. Edmunds Hill 



Spirifer aroostookensis Clarke 



(See plate 34) 

 Page 119 



5 The type specimen, a dorsal valve 

 9 Enlargement of the surface, x 10 



Locality. Edmunds Hill 



Spirifer cymindis Clarke 



Page 117 



6 Internal cast of ventral valve 



7 Exterior of ventral valve 



8 Exterior of dorsal valve 



10, 1 1 Internal casts of ventral and dorsal valves 

 Locality. Edmunds Hill 



Spirifer cymindis var. sparsa Clarke 



Page 118 



12 Internal cast of ventral valve not typical of the variety but showing 



features of plication between that and the species 

 13, 14 Internal casts of two ventral valves with sparse angular plications. 

 x 1% 



Locality. Edmunds Hill 



226 



