NORTH AMERICAN CONCHOLOGY. 



18T 



Page. Name. 



72 Anodonta fluviatilis Lea. 

 Mytilus jluviutUus Sol. 

 var. Mytilus illitus Sol. 

 A. cataract a Say. 

 rnarginata Say. 

 implicata Say. 

 teres Conrad. 

 72 Footiana Lea. 



72 gibbosa Say. 



72 gigantea Lea. 



72 glauca Valenc. 



72 grandis Say. 



A. corpulenta Cooper. 

 72 imbecilis Say. 



A. incerta Lea. 

 72 Newtonensis Lea. 



72 Nuttalliana Lea. 



72 Oregouensis Lea. 



72 ovata Lea. 



72 Pepiniana Lea. 



73 salmonia Lea. 



73 Stewartiana Lea. 



73 subcylindracea Zea. 



73 suborbiculata Say. 



var. j4. rotnndatus Swains. 

 73 undulata Say. 



A. rugosus Swains. 



var. A. Pennsylvania Lam. 

 73 Wahlamatensis Lea. 



73 Wardiana Lea. 



A. virgata Conrad. 



Family Clianiacea. 



74 Chama arcinella Linn. 



75 exogyra Conrad. 



75 producta Brod. 



Family Mytilacea. 



76 Modiola capax Conrad. 

 70 cicercula Moll. 



Mytilus decussatus Mont. 

 76 discors Linn. 



Mytilus discors Linn. 



laevigata Gray. 

 Modiola discrejjans Lam. 



Locality. 

 Hudson river. 



New Jersey. 



New York. 



Massachusetts. 



Connecticut. 



South Carolina. 



Ohio. 



South Carolina. 



Port Gibson. 



Acapulco. 



Fox river. 



Wabash river and Cir. 



cinnati. 

 New Jersey. 

 Wahlamat river. 

 Wahlamat river. 

 Marietta. 

 Lake Pepin. 

 Poland, Ohio. 

 Louisiana. 



Oak Orchard cr., N. Y. 

 Illinois. 

 Alton, Illinois. 

 New York. 



Pennsylvania. 

 Wahlamat river. 

 Ohio. 



Florida. 



Upper California. 



Mexico. 



California. 

 Greenland. 



Greenland. 



