COAL-MEASURE SPECIES. 347 



breadth of their body volution. It is also a larger and more robust 

 species than M. Newherryi. 



As none of the specimens yet seen have the outer lip and lower part 

 of the aperture entire, the form of the aperture can not be made out, and 

 there may even be room for some little doubt whether or not it is, in 

 perfect examples, narrowed and produced into a canal below. If this 

 is the case, the name of the species should be Solenicus Klipparti, as it 

 appears to present very nearly the other characters of the type of that 

 group. 



The specific name is given in honor of John H. Klippart, Esq., of 

 Columbus, Ohio, Secretary of the State Board of Agriculture, who dis- 

 covered the specimens from which the foregoing description was made 

 out. 



Locality and position : Near base of Coal Measures, near Somerset, Perry county, 

 Ohio. 



