Fig. I, a. \^ie\v of spire. 

 Fi^. I, b. Dorsal view. 



PLATE III. 



HOLOPEA GRANDIS. 



Page 177. 



Straparollus TRICARINATUs. 



Page 179. 

 Fig. 2, a. Umbilical view. 

 Fig. 2, b. Front view. 



BUCAXIA perornata. 



Page I So. 

 Fig. 3, a. Side view. 

 Fig. 3, b. Surface ornamentation, enlarged. 



Terebratula (Cr yptoxella) iovvensis. 

 Page 174. 

 Fig. 4, a. Dorsal valve. 



Fig. 4, b. Ventral valve, partlv exposed to show the reverse of the muscular 

 impressions. 



Ancylus obliquus. 

 Page 214. 

 Fig. 5. Top view of a typical specimen. 

 Fig. 5, a. Side view of the same specimen, taken at right angles to the dotted 



lines in Fig. 5. 

 F?g. 5, b. Side view of another somewhat larger, less oblique specimen. 

 Fig. 5, c. Summit view of the specimen 5, b. 



