NORTH AMERICAN CONCHOLOGY. 



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Kame. 

 Unio carbonarius Lea, 

 U. pliciferus Lea. 

 var. U, plexus Conrad. 



semigranosa Busch. 

 cardium Raf, 

 U. occidens Lea. 



var. U. ventricosus Barnes, Say. 

 subovatus Lea. 

 cariosus Sai/. 

 U. ovata Valenc. 

 var. U, luteolus Lam. 

 castaneus Lea. 

 cerinus Conrad. 

 cicatricosus Say. 

 U. varicosus Lea. 

 Claibornensia Lea. 

 clavus Lam. 



U. Modioliformis Say. 

 var. U. scalcnius Raf. 

 cuneatus Raf. 

 palulus Lea. 

 coccineus Lea. 

 U. rubra ? Raf. 

 var. U. catillus Conrad. 



Gouldianus? Ward. 

 COllinus Conrad. 

 complanatus Soland. 

 Mya complanaia Soland. 

 var. U, violaceus Spengler. 

 purpureus Say. 

 rarisulrata Lam. 

 coarctata Lam. 

 purpurascens Lam. 

 rhombula Lam. 

 carinifera Lam. 

 Georgina Lam. 

 glahrata Lam. 

 sulridens Lam. 

 Jluviatilis Green. 

 Ml/a rigida Wood. 

 compressus L(a, 



Syiiij/li)/ttola compressa Lea. 

 confertuB Lea. 

 Congareeus Lea. 



Locality. 

 Medellin river. 



Mexico. 



Ohio river. 



Passaic river. 



Hudson river & Conn. 

 Alabama river. 

 Louisiana. 

 Ohio river. 



Alabama. 

 Wabash river. 



Ohio river. 



Mahoning river. 



Ohio river. 



N. river, Va. 

 Maryland. 



New Jersey. 

 Yadkin river. 

 Lake Champlain. 

 Virginia. 

 New York. 

 Hudson river. 

 Connecticut. 

 Lake George. 

 Massachusetts. 

 Connecticut. 

 Pennsylvania. 

 Rhode Island. 

 New York. 



Santee canal, S. C. 

 Congaree river. 



