ZOOLOGY MOLLUSC A. 



PHYSA HETEROSTROPHA, Say. 



hetvrostropJia, SAY., Am. ed. Nich. Eucycl., 1817-19, pi. 1, f. 0. SAY, Couch., 



Binney's ed., 40, pi. Ixix, f. 6. 

 I'hysa hcterostropha, SAY, Jour. Acad. Nat. Sci. Phila,, ii, 1821, 172. SAY, Couch., 



Biuuey's ed., 08. HALD., Mon., 1843, 23, pi. ii, figs. 1-9. GOULD, Invert. 



Mass., 1841, 211, f. 141. ADAMS, Verm. Moll., 1842, 154. DESHAYES, in 



Lamarck, An. sans Ver., viii, 402; ed. 2, iii, 412. DEKAY, N. Y. Moll., 



1843, 70, pi. v, f. 82. CHEMNITZ, ed. 2, 7, pi. 1, figs. 7, 8. MRS. GRAY, Fig. 



Moll. An., pi. cccx, f. 9. POTIEZ & MICHAUD, Gal. des Moll., i, 224, pi. xiii, 



figs. 15, 10. ANON., Can. Nat., ii, 1857, 209, f. . BINNEY, Land & Fresh 



Water Shells N. A., pt. ii, 1805, 84. EGBERTS, U. S. Geol. Surv. Terr., 1870, 



408. 



Physa fmitana, HALD., Mou., pt. ii, 1841, p. 3 of cover. 

 Physa cylindricn, NEWCOMB, in DeKay, N. Y. Moll., 1843, 77, pi. v, f. 82. 

 Physa aurea, LEA, Trans. Am. Phil. Soc. Phila., vi, 1839, 18, pi. xxiii, f. 106. Id., 



Obs., ii, 1839, 18. DEKAY, N. Y. Moll., 1843, 80, pi. v, f. 89. 

 Physa plicata, DEKAY, N. Y. Moll., 1843, 78, pi. v, f. 85. 

 Physa osculans, HALD., Mou. Part., figs. 11, 12. 



Physa striata, MENKE, Syn. M6th., ed. 2, 1830, 132, teste HALDEMAN. 

 Physa sitbarata, MENKE, loc. cit., teste HALDEMAN. 

 Physa charpentieri, KUSTEK, in Chemuitz, ed. 2, 23, pi. 14, figs. 4-0. 

 Pliysn philippi, KiiSTER, loc. cit., 19, pi. iii, figs. 3-6. 

 Physa infata, LEA, Proc. Am. Phil. Soc. Phila,, ii, 32. Id., Trans., ix, l.Id., Obs., 



iv, 7. 



Helix lieterostrophus, EATON, Zool. Text-Book, 1866, 195. 

 Jlulla crassula, DILLWYN, Couch., tab. 1, 487, No. 30 (=fontinalis). CHEMNITZ, Conch., 



ix, 33, pi. ciii, figs. 879, 880, var. 3. GMEL., Syst. Nat., 3407. SCHROTEK, 



Eiul. I., 201, Helix, No. 84. 

 Cochlea neritoides, LISTER, Conch., pi. cxxxv, f. 34. 



This species is represented in the collection by a few individuals 

 brought from the shores of Lake Sevier, forty miles from Fillmore, Utah, 

 by Mr. G. K. Gilbert, geologist of the survey. No living shells were found, 

 and the probabilities are that the shells collected were washed from the 

 Sevier River, which is fresh water, into the briny waters of the lake, and 

 there perished. It is rather curious that a shell so common, and with such 

 a wide range of distribution, should have been met with in but one locality 

 in Utah. 



