92 U. S. NATIONAL MUSEUM BULLETIN 212 



Type: U. S. Nat. Mus. 



Type Locality: Washington, D. C. 



Range: Maryland, District of Columbia, and north-central Virginia. 



Cleidogona margarita Hoffman 



Cleidogona margarita Hoffman, 1950, Joum. Elisha Mitchell Sci. Soc, vol. 



66, p. 21, figs. 19-22. 

 Type: U. S. Nat. Mus. (No. 1877) . 



Type Locality: Chimneys Camp Ground, Sevier County, Tennessee. 

 Range : Known only from type locality. 



Cleidogona minima Causey 



Cleidogona minima Causey, 1951, Journ. Washington Acad. Sci., vol. 41, 



p. 80, figs. 10-13. 

 Type : Acad. Nat. Sci. Philadelphia. 



Type Locality: Tuscaloosa, Tuscaloosa County, Alabama. 

 Range : Known only from type locality. 



Cleidogona mississippiana Cliamberlin 



Cleidogona mississippiana Chamberlin, 1942, Bull. Univ. Utah, biol. ser., 



vol. 6, No. 8, p. 3, figs. 4-6. 

 Type: Collection of R. V. Chamberlin. 



Type Locality: Eight miles east of Vicksburg, Warren County, Mis- 

 sissippi. 



Range: Known from three localities in central Mississippi. 



Cleidogona sublettei Causey 



Cleidogona sublettei Causey, 1954, Tulane Stud. Zool., vol. 2, No. 4, p. 



66, figs. 4, 5. 

 Type: Amer. Mus. Nat. Hist. 



Type Locality: Grand Ecore, Natchitoches Parish, Louisiana. 

 Range : Known only from type locality. 



Cleidogona unila Causey 



Cleidogona unita Causey, 1951, Journ. Washington Acad. Sci., vol. 41, p. 



78, figs. 5-9. 

 Type: Illinois Nat. Hist. Surv. 



Type Locality: Giant City State Park, Union County, Illinois. 

 Range : Also known from Dixon, Lee County, Illinois. 



Genus DEAROLFIA Loomis 



Dearolfia Loomis, 1939, Bull. Mus. Comp. Zool., vol. 86, p. 177. 

 Generotype: Dearolfia lusciosa Loomis, by original designation. 

 Range: Northeastern West Virginia. 

 Species: One. 



