EXPLANATION OF PLATE LY. 



Page. 

 FIG. 1. Loxonemasp.l 



Lateral aspect. (Rowley collection.) 

 Carboniferous, Burlington limestone. 



FIG. 2. Loxonema sp,1 



Lateral view. (Rowley collection.) 

 Carboniferous, Burlington limestone. 



FIG 3. Gen. etsp. nov, 



3a. View of bpecimen. (Hare collection.) 

 3b. Opposite aspect of same, showing columella 

 Carboniferous, Upper Coal Measures. 



FIG. 4. Soleniscus sp.1 



4a. Specimen with part of body- whorl removed. (Hare collection.) 

 4b. Another specimen . (Same collection.) 

 Carboniferous, Upper Coal Measures. 



FIG. 6 . Bulimorpha inornata 205 



Lateral view. (Hare collection.) 

 Carboniferous, Upper Coal Measures. 



FIG. 7. Strophostylus remex - 197 



7a. Apertural view. (Key es collection.) 

 7b. Opposite aspect of same. 



Carboniferous, Upper Coal Measures. 



FIG. 8. Trachydomia whceleri 200 



Lateral view. (Key es collection.) 

 Carboniferous, Upper Coal Measures. 



