no Bryant Walker 



Physa elliptica Lea. 



Is a valid species according to Crandall (27, p. 54 ) and includes troos- 

 tiana Lea and minor Crandall as varieties and aiirca, fcbigerl and nicklinii 

 Lea and deformis Currier as synonyms. Baker's figures (4, pi. 34, tig. 5), 

 copied by IMatchley and Daniels (14, pi. I, fig. 118) do not represent the 

 true elliptica. 



I'iiYSA klliptica minor Crandall. 



Physa elliptica minor Crandall, Naut., XV, 1901, p. 55. 

 Type locality : Grand Rapids, Mich. 

 Types No. 14469 Coll. Walker. 



Physa febigeri Lea. 



Physa fcbigeri Lea, Pr. A. N. S. P., 1864, p. 114; Jour. A. N. S. P., \T, 1866, 



p. 174, pi. 24, fig. 99; Obs., XI, 1866, p. 130, pi. 24, fig. 99. 

 Type locality: Logan Co., O. 



Is elliptica according to Tryon (132, p. 163) and Crandall (27, p. 55). 



Physa forsheyi Lea. 



Physa forsheyi Lea, Pr. A. N. S. P., 1864, p. 114; Jour. A. N. S. P., VI, 



1866, p. 172, pi. 24, fig. 95; Obs., XI, 1866, p. 128, pi. 24, fig. 95. 

 Type locality : Rutersville, Texas. 



Includes zvJiitei Lea according to Crandall (27, p. 67). 



Physa fragieis Mighels. 



Is a pathologic form of ancillaria according to Morse (75, p 43). 



Physa grosvernori Lea. 



Physa (irosvernori Lea, I'r. A. X. S. P., 1864, p. 114; Jour. A. X. S. P., VI, 

 1866, p. 175, pi. 24, fig. 100; Obs., XI, 1866, p. 131, pi. 24, fig. 100. 



According to Cooper (25, p. 97) includes P. traskii Lea, occidentalis 

 Try., dorbignyana Lea and sparsestriatn Try. as varieties. 

 Type locality : Santa Rita Valley. 



Is a var. of forsheyi according to Crandall (27, p. 69). 



Physa gyrina Say. 



Includes cylindrica Newc, altonensis, Jiazvnii and smithsoniana Lea as 

 synonyms and aibofilata Ancey, liildretJiiana Lea and oleacea Tryon as vari- 

 eties according to Crandall (27, p. 45). 



