Plate II 



Codcistcr lover, n. sp. Summit view. 



Lateral view of another specimen of the same species. 



Edriocrinus adnascens, n. sp. 



Dalnianclla pygincca, n. sp. Posterior view, showing the sinus 



and fold. 

 Dalmanella pygmaa, n. sp. Dorsal view of a typical specimen. 

 Dalmanella rockhouscnsis, n. sp. Interior view of a ventral 



valve, showing the characteristic diductor muscle-scars. 

 Dalmanella rockhouscnsis, n. sp. Ventral view. 

 ■Dalmanella rockhouscnsis, n. sp. Lateral view, to show the 



distinct convexity of the dorsal valve. 

 ■Dalmanella inacra, n. sp. Interior of a ventral valve, showing 



the very minute diductor muscle-scars. 

 ■Dalmanella macro, n. sp. Ventral view of a typical specimen. 

 ■Diciyonella siibgibbosa, n. sp. Ventral view. 

 ■Dicfyonella subgibhosa, n. sp. Enlargement of the surface pits, 



X 10. 



■Dicfyonella siibgibbosa, n. sp. Lateral view, to show the thick 

 umbonal region and the strongly incurved ventral beak. 



■Chonctcs zvadci, n. sp. Ventral view of the holotype, x2. 



■PJiolidosfrophia lindenensis, n. sp. Dorsal view of a nearly 

 complete specimen. 



-Profile of the same. 



■Chonetes hiidsonicus camdcncnsis, n. mut. Ventral view of a 

 natural cast. 



■Strophonella punctiilifcra liolladayi, n. var. Profile view. 



-Strophonella punctulifcra holladayi, n. var. Ventral view of the 

 imperfect holotype, showing the characteristic surface orna- 

 mentation. 



■Strophonella lincolata, n. sp. Dorsal view. 



-Profile of the same species. 



-Brachyprion purduei, n. sp. Ventral view. 



■Brachyprion purduei, n. sp. Interior view of the ventral valve. 



-Lcptcena ingens, n. sp. Ventral view of a natural mold of the 

 interior, showing the characteristic muscle-scars. 

 Fig. 25. — Chonctcs fornacuta, n. sp. \'entral view, .x 2. 



Fig. 9 



Fig. 10, 

 Fig. II 

 Fig. 12 



Fig. 13 



