036 



ZOOLOGY MOLLUSCA. 



SUCCINEA LINEATA Binney. 



Succinca lineata, W. G. BINNEY, Proc. Acad. Nat. Sci. Phila., 1857, 19. BINNEY, Proc. 

 Bost, Soc, Nat, Hist., vi, 1857, 155. If?., Terr. Moll., iv, 38, pi. Ixxx, f. 5. 

 TRYON, Am. Jour. Conch., ii, 18G6, 235, pi. ii, f. 1C. BINNEY & BLAND, 

 Laud & Fresh Water Shells N. A., pt, i, 1869, 262. BINNEY, Bui. Mus. 

 Comp. Zool., iii, No. 9, 195. ROBERTS. U. S. Geol. Stirv. Terr., 1870, 4C8. 



This species is extensively distributed throughout the " Interior 

 Region " of W. G. Binney, having entered it probably from the Northern. 

 First chronicled from Nebraska. 



SUCCINEA STEETCHIANA, Bland. 



Succinea stretcliiana, BLAND, Aim. N. Y. Lye., viii, 1865, 168, f. 16. TRYON, Aiu. Jour. 

 Couch., ii, 1866, 231, pi. ii, f. 5. 



Described from a specimen found in Washoe County, Nevada. 



Found in Colorado and New Mexico by the expedition. The speci- 

 mens from Colorado are extremely large for this species ; but Dr. James 

 Lewis informs me they are identical with the type, although some are 

 nearly twice the size of it. 



SUBORDEB BASOMMATOPHO1IA. 



SUPEEFAMILY LIMNOPHILA. 

 FAMILY PHYSIDAE. 



Genus PHYSA, Drap. 

 PHYSA GYKINA, Say. 



Physagyrina, SAY, Jour. Acad. Nat, Sci. Phila., ii, 1821, 171. SAY, Couch., Biuney's 

 ed., 67. HALD., Mou., 1843, 32, pi. iii, figs. 1-6. (?)DEKAY. N. Y. Moll., 

 1843, 79, pi. v, f. 87. CHEMNITZ, ed. 2, L'O, pi. v, tigs. 7-10. ADAMS, Verm. 

 Moll., 1842, 154. BINNEY, Laud & Fresh Water Shells N. A., pt, ii, 1865, 77. 



