132 THE NAUTILUS. 



293. ZONITOIDES EXIGUUS (Stimps.). Quebec and Ontario, New 

 England, N. Y., Mich. 



294. ZONITOIDES MTLIUM (Morse). Ontario to Florida, west to 

 Indiana. 



294a. ZONITOIDES MILIUM PUGETENSIS (Dall). Seattle, Wash. ; 

 Ballena, San Diego Co., Cal. 



Genus GASTRODONTA Albers, 1850. 



295. GASTRODONTA INTERTEXTA (Binn.). Ontario to Florida, 

 west to southwestern Louisiana and Indiana. A carinated form 



% 



occurs. 



296. GASTRODONTA ACERRA (Lewis). Roan Mt., North Caro- 

 lina, to Montgomery, Ala. ; Indian Terr. 



297. GASTRODONTA DEMISSA (Binn.). Western Pa. to Georgia 

 west to Arkansas and eastern Texas. 



297a. GASTRODONTA DEMISSA BRITTSII (Pils.). Hot Springs, Ark. 



298. GASTRODONTA CERINOIDEA (Anth.). Virginia to northern 

 Florida. 



299. GASTRODONTA LIGERA (Say). Ontario to Michigan, Indian 

 Terr, and Louisiana, south to Virginia and Tennessee. 



300. GASTRODONTA COLLISELLA Pils. Lookout Mt., Roane, 

 Knox, Monroe and Washington counties, Tennessee ; Lexington, 

 Va. 



300a. GASTRODONTA COLLISELLA PERCALLOSA Pils. Near Chat- 

 tanooga and Nashville, Tenu. 



301. GASTRODONTA GULARIS (Say). Mountain region of eastern 

 Tennessee, western North Carolina, northern Alabama and Georgia. 



301a. GASTRODONTA GULARIS CUSPIDATA (Lewis). Monroe Co., 

 etc., eastern Tennessee ; Roan Mt. 



302. GASTRODONTA SUPPRESSA (Say). Ontario and Michigan 

 to Maryland. 



303. GASTRODONTA MACiLENTA^Shuttl.). Mountains near the 

 Tennessee and North Carolina boundary. 



304. GASTRODONTA LASMODON (Phillips). Eastern Tennessee, 

 western North Carolina and northern Alabama. 



305. GASTRODONTA ELLIOTTI (Redf.). Same distribution. 



306. GASTRODONTA INTERNA (Say). Ohio to northern Florida, 

 chiefly in Tennessee; West Virginia ; northern Alabama. 



Subgcnus Taxeodonta Pilsbi-y, 1898. 



307. GASTRODONTA SIGNIFICANS (Bid.). Fort Gibson, Indian 

 Terr.; Union Co., Tenn. 



