PLATE 18 



Newberria missonriensis Swallow 

 Page 9.?. 



Fig. 1. Internal mould of an imperfect pedicle valve. 

 Figs. 2 and 3. Two views of an internal mould of a brachial valve. 

 Fig. 4. Side view of a specimen with pedicle valve slightly more convex than average. 

 (Callaway limestone of Boone County.) 



Cranaena calvini Hall 

 Page 94. 



Fig. 5. Pedicle valve of a small specimen retaining color pattern. (X2). 

 (Snyder Creek shale of Callaway County.) 



Genus and species not determined 



Fig. 6. Internal mould of a brachial valve. (X4). 



(Mineola limestone of Montgomery County.) 



A try pa gregeri Rowley 

 Page 97. 



Figs. 7-9. Three views of a cotype (X2). (Snyder Creek shale of Callaway County. 

 Collection of R. R. Rowley.) 



