100 



GEOGRAPHICAL DISTRIBUTION 



perpurpureus. Lea. Tennessee. 



perradiatus. Lea. Tennessee river, Florence, 

 Ala. 



personatus. Say. Wabash river, Ind. 



perstriatus. Lea. Abbeville Dist., S. C. 



pertenuis. Lea. Neuse river, N. C. 



petrinus. Gould. Llanos river, Mex. 



phaseolus. Hild. Ohio river. 



Phillipsii. Con. Ohio river. 



pictus. Lea. Harpeth river, Tenn. 



pilaris. Lea. French Broad, and Holston 

 rivers, Tenn. 



pileus. Lea. Ohio river, Cincinnati. 



pinguis. Lea. St. Peter's river, Upper Mis- 

 sissippi. 



placitus. Lea. Alabama. 



plancus. Lea. Coosa river, Ala. 



planicostatus. Lea. Tuscumbia, Ala. 



planilaterus. Con. Yadkin river, N. C. 



Plantii. Lea. Flint river, Ga. 



plenus. Lea. Ohio river, Cincinnati. 



pliciferus. Lea. Mexico. 



plicatus. Lesueur. Ohio river. 



Poeyanus. Lea. Rio de las Balsas, Mexico. 



Popeii. Lea. Devil's river, Texas. 



porphyreus. Lea. Coosa river, Ala. 



Postellii. Lea. Columbus, Ga. 



Powellii. Lea. Sabine river, Ark. 



Prattii. Lea. Cobb county, Ga. 



pressus. Lea. Ohio river, Cincinnati. 



Prevostianus. Lea. Etowah river, Ga. 



productus. Con. Savannah river, Augusta, 

 Ga. 



propinquus. Lea. Tennessee river, Florence, 

 Ala. 



proprius. Lea. Georgia. 



protensus. Lea. North Carolina. 



proximus. Lea. Georgia. 



pudicus. Lea. North Alabama. 



pulcher. Lea. Nashville, Tenn. 



pullatus. Lea. Columbus, Ga. 



pullus. Con. Wateree river, S. C. 



pulvinulus. Lea. Murray county, Tenn. 



pumilus. Lea. Black river, N. C. 



punctatus. Lea. Tennessee. 



puniceus. Hald. Holston river, Tenn. 



purpuratus. Lam. Lower Mississippi. 



purpurellus. Lea. Flint river, Ga. 

 purus. Lea. Neuse river, N. C. 

 pusillus. Lea. Ogeechee river, Ga. 

 pustulatus. Lea. Ohio river, Cincinnati, 

 pustulosus. Lea. Ohio river, Cincinnati. 

 Pybasii. Lea. Tennessee river, Tuscumbia 



Ala. 



pygma3us. Lea. Abbeville, S. C. 

 pyramidatus. Lea. Ohio river, Cincinnati, 

 pyriformis. Lea. Columbus, Ga. 

 quadrans. Lea. Texas, 

 quadratus. Lea. Columbus, Ga. 

 quadrilaterus. Lea. S. and N. Carolina, 

 radians. Lea. Othcalooga river, Ga. 

 radiatus. Lam. Lake Saratoga, Hudson 



river, Delaware river. 

 Raee"nsis. Lea. Columbus, Ga. 

 Raleighensis. Lea. Neuse river, N. C. 

 Rangianus. Lea. Ohio river, Cincinnati. 

 Ravenelianus. Lea. North Carolina, 

 rectus. Lam. Ohio river. 

 Reeveianus. Lea. Alexandria, La. 

 refulgens. Lea. Lauderdale county, Missi. 

 regularis. Lea. French Broad river, E. 



Tenn. 



retusus. Lam. Ohio river. 

 Rhumphianus: Lea. West Georgia. 

 RiddelHi. Lea. Dallas, Texas. 

 Roanokensis. Lea. Tar river, N. C. 

 rostriformis. Lea. Macon county, Ga. 

 rostrum. Lea. Davidson county, N. C. 

 Roswellensis. Lea. Cobb county, Ga. 

 rotundatus. Lam. Ohio river. 

 Rowellii. Lea. Chagres river, Cent. Am. 

 rubellinus. Lea. Othcalooga creek, Ga. 

 rubellus. Con. Black Warrior, Ala. 

 rubidus. Lea. Tombigbee river, Missi. 

 rubiginosus. Lea. Ohio river, Cincinnati, 

 rufus. Lea. Etowah river, Ga. 

 rufusculus. Lea. Abbeville Dist., S. C. 

 rugososulcatus. Lea. Central America. 

 Rutersvillensis. Lea. Fayette co., Texas, 

 rutilans. Lea. Othcalooga creek, Ga. 

 sagittffiformis. Lea. Oconee river, Ga. 

 Saladoensis. Lea. Mexico, 

 salebrosus. Lea. Columbus, Ga. 

 Sapotalensis. Lea. Sapotal river, Mex. 



