GASTROPODA— PLEUROTOMARIIDJE. 



643 



Shoulder convex near suture, concave near band ; coiling some- 

 times slightly loose ; umbilicus moderate. 



Stones River of Minnesota ; Black River of Tennessee. 

 127. E. vicina Ulrich and Scofield. (Fig. 875, f.) Ordovicic. 



b 



f ^ c e 



Fig. 875. a, b, Liospira mundula ; c-e, Eotomaria dry ope ; f, E. vicina. 



Like the preceding, but with shoulders flat, forming a cone 

 equal in height to body of last whorl. 



Stones River of Minnesota and Wisconsin. 

 128. E. supracingulata (Bill.). (Fig. 876.) Ordovicic. 



Fig. 876. Eotomaria supracingulata, three views, X 2 A- (After Ulrich, Pal. Minn.) 



Large ; whorls not embracing to periphery ; shoulders gently 

 convex ; notch deep ; umbilicus large. 



Stones River and Black River of Illinois, Wisconsin, Michigan, 

 and Minnesota ; Pogonip group of Nevada (?). 



129. E. areyi Clarke and Ruedeman. 



Siluric. 



Large and robust, with nearly flat shoul- 

 ders, a prominent band, and the sides of the 

 body whorl nearly vertical. 



In the Guelph of Canada and New York ; 

 Upper Monroe of Michigan. 



130. E. galtensis (Bill.). (Fig. Syy.) 



Siluric. 



Depressed conic, apical angle about ioo°, shoulders nearly flat, 

 whorls embracing to ambitus, body portion receding, making 

 ambital angle often less than 90 ; growth lines recurving, some- 

 times strong on upper surface. 



Fig. 877. Eotomaria 

 galiense. ( AfterWhiteaves, 

 Pal. Foss., III.) 



