PLATE 13. 



Pago. 

 Fig. 1. Inoceramus Cripsii?, var. Bahabini' 49 



1,0. Right-side view of the rather transverse type-specimen, of the variety, natural size; 



retaining portions of the inner pearly layer. 

 1, b. A left-side view of a proportionally shorter, smaller specimen. 



1, c. A dorsal profile view of the last, to show its compressed form. 



Fig. 2. Inoceramus Sagensis, var. Nebrascensis 52 



2, o. A right-side view of the type-specimen of the variety, with portions of the posterior and 



posterior-hasal margins broken away. 



2, b. An outline dorsal view of same, to show convexity. 



Fig. ?>. Pholadomya (Procardia) Hodgii 219 



li, a. A left-side view of the type-specimen, which is an internal cast, natural size. 



3, b. An interior view of same, showing the strongly-incurved character of the beaks, and 



large, impressed, cordate lunule, as well as a kind of false area under the beaks. 



