OP CONCHOLOGY. 



Dimensions. — Length 12 mill., diam. 7 mill. 



Habitat. — Bridgeport, Ala., (Charles M. Wheatley.) 

 Lake Superior, (Jos. Leidy, M. D.) 



My Cabinet. Cabinet of Mr. C. M. Wheatley, Phoenixville, 

 Penna. Cabinet of the Academy of Natural Sciences, Phila- 

 delphia. 



Observations. — This species, of which I have seen nume- 

 rous examples, of all ages, is much shorter in the spire, more 

 oval, and differently colored from Ph. gyrina, Say. Ph. brevi- 

 spira, Lea, is differently colored and more inflated, and finally, 

 Ph. Primeana, nob., is a smaller species, with distinct striae, 

 longer spire, and more inflated. It is, I think, the most beau- 

 tiful species of the genus yet detected in the United States. 



Neiv Localities for Physse. 



Physa brevispira, Lea. Buffalo, N. Y. W. S. Nason. 

 (Smithsonian Collection.) 



" Niagarensis, Lea. Grand Rapids, Mich. C. M. 

 Wheatley. (Coll. Wheatley and Try on.) 



" Grosvenorii, Lea. Dayton, Nevada. C. M. Wheat- 

 ley. (Coll. Wheatley and Tryon.) 



" parva, Lea. Little Valley, Nevada. C. M. Wheat- 

 ley. (Coll. Wheatley and Tryon.) 



" Whitet, Lea. Chattahoochie River, Columbus, Geo 

 (Coll. Wheatley and Tryon.) 



" gyrina, Say. Carson, Nevada. C. M. Wheatley. 

 (Coll. Wheatley and Tryon.) 



This is a very large variety, distinguished by an 

 unpolished epidermis, and rough, coarse growth- 

 lines. 



" INTEGRA, Hald. Rhode Island. (Coll. Tryon.) 



I am not aware of this species having been no- 

 ticed until now, in any other locality, except that 

 of the description, Indiana. 



u Niagarensis, Lea. Lake Superior. Joseph Leidy, 

 M. D. (Coll. Tryon.) 



This species may prove to be only a variety of 

 integra, Hald. 



