PL AT E \j —Con 11 n ued. 
Fig-. 
Fig. 
Fig. 
Fig. 
Fig. 
Fig. 
Fig. 
Fig. 
Fig. 
Fig. 
Fig. 
Fig. 
34. 
35. 
36. 
37. 
3S. 
39. 
40. 
41. 
42. 
43. 
44. 
45. 
46. 
Palteoneilo attenuata. 
Page 346. 
A cast of the interior of a left valve. 
Waverly group. Licking Co., Ohio. 
The interior of a left valve from a gutta-percha impression of the preceding. 
An enlargement of the same. 
A small individual of this species. 
Waverly group. Neivark, Ohio. 
The cast of a rig-ht valve of medium size. 
Waverly group. Newark, Ohio. 
A cast of an unusually large left valve. 
Waverly group. Newark, Ohio. 
Palteoneieo tkuncata. 
Page 347. 
A small specimen retaining the shell and showing the surface markings. 
Waverly group. Bagdad, Ohio. 
A large right valve of this species. 
Palteoneilo sulcatina. 
Page 347. 
A left valve. 
Waverly group. Licking Co., Ohio. 
A cast from the impression of the exterior, showing the character of surface strife and an unusual 
truncation at the post-inferior extremity. 
Waverly group. Newark, Ohio. 
From a gutta-percha impression of the natural mould. 
Waverly group. Licking Co., Ohio. 
A cast of the interior of a right valve, showing muscular scars and crenulated hinge-line. 
Waverly group. Licking Co., Ohio. 
A gutta-percha impression from a right valve of this species. 
Waverly group . 3 Richfield, Ohio. 
