PLATE XXXIV 
Fig. 1 A, B. Charactoceras haeri (Meek and Worthen). A, ventral 
vie’w of an incomplete specimen, showing the surface striae. B, lateral view 
of the same specimen. From the vicinity of Oxford, Ohio, in the basal part 
of the Whitewater member of the Richmond. Collected by Prof. W. H. 
Shideler, of Miami University. 
Fig. 2. Charactoceras haeri (Meek and Worthen). Dorso-ventral 
section, exposing the siphuncle. From Flat Fork, 4 miles northeast of 
Oregonia, Ohio, in the basal part of the Whitewater member of the Rich- 
mond. Collected by Prof. J. E. Carman, of Ohio State University. 
