List of the Mollusca of Missouri. 79 



souri. His decision was that he had never seen any hete- 

 rostropha from west of the Mississippi river. 



37. Physa gyrina albofilata Ancey. 



Cow Skin river, Macdonald Co., Aug., 1891, (8), 

 (17) ; Nevada, Vernon Co.; Chad wick, Christian 

 Co. (Pilsbry & Ferriss). 



Some years ago I sent some Physa from Eureka 

 Springs, Arkansas, to the late Mr. Ancey, then of France, 

 and later of Algeria; these he described as albofilata. 

 The same beautiful shells have been found in Missouri as 

 above. 



38. Physa oleacea Tryon. 



Branch Cedar Creek, Pettis Co., Oct., 1883, 

 (10) ; Pond, west of Gentry's, Pettis Co., May, 

 1885, (24) ; Pond, northwest of Gentry's, July, 

 1885, (14) ; Stream, Boonville, Cooper Co. (10) ; 

 Pond on Gentry farm, Pettis Co. (15). 



39. Physa Integra Hald. 



From Pettis County:— Flat Creek, Aug., 1886, 

 (17); Same, Sept., 1886, (3); Muddy Creek, 

 Aug., 1886, (14) ; Flat Creek, Aug., 1881, (40) ; 

 Pond, Freight depot, Sedalia, Sept., 1884, (11) ; 

 Same place, July, 1885, (15) ; Dresden, Sept., 

 1885, (15); Muddy Creek, Pin Hook, Apr., 

 1891, (15). 



Hannibal, Marion Co., Sept., 1885, (15) ; Pal- 

 myra, Marion Co., Sept., 1887, (16) ; Kansas 

 City, Jackson Co. (17) ; Bear Creek, Marion 

 Co. (25) ; Lake, Peirce City, Lawrence Co., 

 1880, (29) ; Same, April, 1884, (20) ; Spring, 

 Nevada, Vernon Co., Aug., 1884, (25); Pond, 

 Nevada, Aug., 1884, (14); Branch, Columbia, 

 Boone Co., April, 1903, (26) ; Same, May, 1903, 

 (16). 



