90 Trans. Acad. Sci. of St. Louis. 



Many of the specimens at Eureka Springs, Arkansas, 

 are albinos, but this is not often the case with the Mis- 

 souri shells. At Cassville they were 10 to IQi/o mm. di- 

 ameter, but from Carthage they were markedly larger, 

 12 to 13 mm. The inferior lip tooth is somewhat the 

 larger, is more prominent on the front part of the lip, 

 and in some cases is bifid. 



86. POLYGYEA VULTUOSA Gould, 



Sedalia, Pettis Co.; Boonville, Cooper Co. (1). 



Years ago I found on Flat Creek near Sedalia, a single 

 shell that I with another compared very carefully with 

 this species, and had no doubt of the identification, but 

 the specimen has been lost. A single shell in the collec- 

 tion is marked with a question mark as from Boonville. 

 In a later hunt I hoped to find another but did not do so. 

 The shell is not quite mature, but is believed to be this 

 species. 



87. POLYGYRA CEAGENI Call. 



Dade Co. (1) ; Split Log, Macdonald Co. (1) ; 

 Mt. Vernon, Lawrence Co. (1). 



These would formerly have been included in vidtuosa, 

 but are now separated under the above name. 



88. PoLYGYEA INFLECTA Say. 



Poplar Bluff, Butler Co. (7); St. Frangois Co. 

 (3); Marble Hill, Bollinger Co. (3); Madison 

 Co. (3); Seligman, Barry Co. (7); Fern Glen, 

 St. Louis Co. (3) ; River Bluffs, Moniteau Co. 

 (10); Providence, Boone Co. (5); Boonville, 

 Cooper Co. (21) ; Camden Co. (2) ; Morgan Co. 

 (9); Sedalia, Pettis Co. (14); Warsaw, Ben- 

 ton Co. (10) ; Galena, Stone Co. (6) ; Carthage, 

 Jasper Co. (15); Macdonald Co. (7); Chad- 

 wick, Christian Co. (Pilsbry & Ferriss) ; Cure- 



