248 College of Forestry 



Cotypes in collection of The New York State College of 

 Forestry at Syracuse University, the Academy of Natural 

 Sciences of Philadelphia, and Dr. Bryant Walker, Detroit, 

 Mich. 



This race of Lampsilis is related to both radiata and luteola 

 From the latter it differs in the more elliptical sometimes 

 orbicular outline of the male shell, the olive green and brown 

 epidermis and in the cardinal teeth which are heavier and 

 broader, not so deeply serrated, and of different shape. From 

 radiata it differs in its outline, in its epidermis, which is not 

 as rough, and in the cardinal teeth, which are not as heavy, 

 and are more elevated, triangular and pyramidal. The pits 

 at the base of the cardinal teeth are deeper. The race is 

 common in Oneida Lake on mud bottom in water from 8 to 

 18 feet deep. 



Adapted from "The Nautilus", Vol. 30, 

 pp. 74-75, 1916. 



