284 



PLATE X 



Page 



Figs. 1, 2. Solenomya ? ? sharonensis n. sp 194 



Sharon ore: Scioto County, near mouth of Lick Run, 



Locality 2. 



Fig. 1. Internal cast of right valve of holotype. x2 

 Fig. 2. Same, natural size. 

 Fig. 3. Solenomorpha lamborni n. sp 195 



Sharon ore: Scioto County, near mouth of Lick Run, 



Locality 2. 

 Right valve of a cotype. x2 



Figs. 4, 5. Edmondia gibbosa (McCoy) 197 



Lower Mercer limestone: Muskingum County, southeast 



of Fairview School, Locality 45. 

 Fig. 4. Right valve. 

 Fig. 5. "Squeeze" of right valve of another .specimen. 



Fig. 6. Edmondia meekiana (Herrick)? 198 



Lower Mercer limestone: Licking County, Flint Ridge, 



Locality 47. 

 Right valve. 



Fig. 7. Edmondia aspinwallensis Meek__i 197 



After Mark. Conemaugh formation: Portersville lime- 

 stone, Portersville, Ohio. 

 Left valve. 



Figs. 8, 9. Edmondia ovata Meek and Worthen 199 



Fig. 8. "Squeeze" of right valve. Lower Mercer: Licking 



County, Bald Knob, Locality 46. 

 Fig. 9. Left valve. Lower Mercer: Muskingum County, 



southeast of Fairview School, Locality '45. 



Figs. 10 to 13. Nucula elongata n. sp T 201 



Sharon ore: Scioto County, near mouth of Lick Run, 



Locality 2. 



Fig. 10. Internal cast of left valve of a cotype. x2 

 Fig. 11. Same, slightly above natural size. 

 Fig. 12. Right valve of another cotype. x2 

 Fig. 13. Side view in outline. x2 



Figs. 14 to 16. Nucula subrotundata Girty mss 203 



After Girty. Morrow formation: Arkansas. 

 Fig. 14. Left valve of a cotype. x3 

 Fig. 15. Right valve of same cotype. x3 

 Fig. 16. Side view of same cotype in outline. x3 



Figs. 17 to 19. Nucula lunula ta Girty mss. 202 



After Girty. Morrow formation : Arkansas. 



Fig. 17. Right valve of a cotype. x3 



Fig. 18. Posterior view of same cotype showing the well 



denned lunule. x3 

 Fig. 19. Anterior view of same cotype. x3 



Fig. 20. Nuculopsis ventricosa (Hall) --- 204 



Lower Mercer limestone: Muskingum County, near White 



Cottage, Locality 36. 

 Specimen showing both valves. 



Fig. 21. Anthraconeilo bownockeri n. sp 208 



Sharon ore: Scioto County, near mouth of Lick Run, 



Locality 2. 

 Internal cast of left valve of holotype. x2 



(Continued on page 285) 



