PLATE 45 



Rhipidomella oblata (Hall) 

 Page 184. 



Figs. 1,2. Dorsal and ventral views. 

 Figs. 3, 4. Dorsal and ventral views. 

 Fig. 5. An incomplete ventral valve. 

 Fig. 6. A ventral valve. 

 Figs. 7, 8. Incomplete dorsal valves. 



Rhipidomella discus (Hall) 

 Page 184. 



Figs. 9-12. Dorsal, ventral, side and posterior views. 



Fig. 13. Dorsal view. 



Fig. 14. An incomplete dorsal valve. 



Figs. 15, 16. Ventral and dorsal views. 



Rhipidomella ellsworlhi n. sp. 

 Page 185. 



Figs. 17-31. Ventral, dorsal, side, anterior and posterior views of three shells. 



Figs. 32, 33. Ventral and anterior views. 



Fig. 34. Dorsal view. 



Fig. 35. Ventral view. 



Fig. 36. Ventral view. 



Fig. 37. Ventral view. 



Fig. 38. An incomplete ventral valve. 



Fig. 39. An incomplete dorsal valve. 



