200 



BIBLIOGRAPHY OF 



Page. Name. Locality. 



271 Lymnaea Vahlii Beck. - Greenland. 



IAmnophysa Vahlii Beck. 



271 Physa ancillaria Say. Pennsylvania. 



var. P. Sayi Tappan. Ohio. 



271 distorta Hold. St. Louis. 



271 fragilis Mighels. Maine. 



271 gyrina Say. Ohio. 



var. P. elliptica Lea. Indiana. 



271 heterostropha Say. New York. 



var. P. aurea Lea. Virginia. 



271 hypnoram Linn, (var.) New York. 



P. elongata Say. 



271 obesa De Kay. Mohawk river. 



271 osculans llald. Mexico. 



271 scalaris Jay. Florida. 



272 Ancylus diaphanus llald. Ohio. 



272 fuscus Adams. Massachusetts. 



272 obscurus llald. Tennessee. 



272 parallelus llald. New England. 



272 rivularis Say. Pennsylvania. 



272 tardus Say. Vermont. 



Order PECTINIBRAtfCIIIATA. 



Family Melaniana. 



272 Melania aequalis llald. 



272 altilis Lea. 



272 alveare Conrad. 



272 annulifera Conrad. 



272 approxima llald. 



272 armigera Say. 



273 bella-crenata llald. 

 27? Boykiniana Lea. 

 27.; Buddii Lea. 



273 caliginoaa Lea. 



.173 canaliculata Say. 



273 catenaria Say. 



27:'> catenoides Lea. 



273 Cincinnatiensis Lea. 



273 clavaeformis L,ea. 



273 comma ( 'onrad. 



273. congesta ''onrad. 



273 conica Say. 

 273 costulata Lea. 



Nolachucky river. 



Susquehannah river. 



Tennessee. 



Alabama. 



Tennessee. 



Tennessee. 



Alabama. 



Georgia. 



Tennessee. 



Tennessee. 



Ohio. 



South Carolina. 



Georgia. 



Ohio. 



Tennessee. 



Alabama. 



Alabama. 



Ohio. 



Tennessee. 



