THE NAUTILUS. 83 



POLYGYRA PLICATA Say. Kentucky, Tennessee and the adja- 

 cent parts of Georgia and Alabama. Helix hazardi Bid. is syno- 

 nymous. The name plicata was not preoccupied in Polygyra, to 

 which genus Say originally referred this species. 



POLYGYRA DORFEUILLIANA Lea. Washington to Cooke Coun- 

 ties, Texas, through Indian Territory, Ark., La. to the Coosa River, 

 Ala., north to Arkansas City, Kansas, Benton County, Mo., and 

 Kentucky opposite Cincinnati. 



POLYGYRA DORFEUILLIANA SAMPSONI Wetherby. Texas, Indian 

 Terr., Mo., Ark. 



POLYGYRA FASTIGIATA Say. Henry Co., Ky. to Montgomery 

 and Franklin Counties, Tenn. Helix fastigans Lucy Say in Bid., is 

 a synonym. 



POLYGYRA JACKSONI (Bid.). Indian Territory, Ark., and Mo. 

 north to Camdeu Co. 



POLYGYRA JACKSONI DELTOIDEA Simpson. Fort Gibson, Indian 

 Territory. 



POLYGYRA TROOSTIANA Lea. Tennessee, Kentucky. 



*f* *P *t- 



POLYGYRA OPPILATA (Moric). Cedar Keys (Binney). A south- 

 ern Mexican and Yucatan species, the occurrence of which in Flor- 

 ida requires confirmation. 



POLYGYRA MOOREANA (W. G. Binney). Central and southern 

 Texas. 



POLYGYRA MOOREANA THOLUS (W. G. B.). Washington County, 

 Texas. 



POLYGYRA BICRURIS (Pfr.). Brownsville and mouth of Rio 

 Grande River, Texas. A Mexican species. 



POLYGYRA VENTROSULA (Pfr.). A species of northwestern Mex- 

 ico, reported from Texas by Binney. 



POLYGYRA VENTROSULA HINDSI (Pfr.). Texas, according to 

 Binney. 



POLYGYRA MATERMONTANA Pils. Texas; also Sierra Madre, 

 Mexico. 



POLYGYRA TEXASIANA (Moric.). Indian Territory and through- 

 out Texas. 



POLYGYRA TRIODONTOIDES (Bid.). Barry Co., Mo., Indian Ter- 

 ritory, southwestern Louisiana, south to Corpus Christi, Texas. 



POLYGYRA LATISPIRA Pils. Western Texas. 



POLYGYRA ARIADN^E (Pfr.). Texas, on the Rio Grande, accord- 

 ing to Biuney. 



