PayAMeH XOXeXOET: 
DINICHTHYS TERRELLI, Newb. 
Fic. 1. Premaxillary tooth, natural size. Cleveland shale, Sheffield, Ohio. 
DinicHTHYys HERTZERI, Newb. (p. 64). 
2. Premaxillary tooth, natural size. Huron shale, Delaware, Ohio. 
DINICHTHYS TUBERCULATUS, Newb. (p. 98). 
3. Supra-scapula, natural size. Chemung group, Warren, Pa. 
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