NORTH AMERICAN CONCHOLOGY. 



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Fig. Name. 



1 Greenii Conrad. 



1 penitus Conrad. 



2 Masoui Conrad. 



3 delumbis Conrad. 



4 arctatus Conrad. 



1 pectorosus Conrad. 



2 rubellus Conrad. 



3 furvus Conrad. 



4 Raveneli Conrad. 



5 icterinus Conrad. 



1 tenebrosus Conrad. 



1 altilis Conrad. 



2 perovalis Conrad. 

 prasinus Conrad. 

 infucatus Conrad. 

 oviformis Conrad. 

 perovatus Conrad. 



Anodonta teres Conrad. 

 Paludina genicula Conrad. 



magnifica Conrad. 

 Melania excurata Conrad. 



Hydeii Conrad. 



annulifera Conrad. 



salebrosa Conrad. 



pyrenella Conrad. 



bitaeniata Conrad. 



comma Conrad. 



lim.a Conrad. 



alveare Conrad. 



nassula Conrad. 



cylindracea Conrad. 



trochiformis Conrad. 



vestita Conrad. 

 Ancylua filosus Conrad. 



4 



G 



1 



2 



5 



5 



G 



7 



8 



7 



9 



10 



11 



12 



The following are mentioned by name only : — 



Locality. 



Black Warrior riv., Ala. 



Alabama river. 



Savannah, river. 



Cooper river, S. C. 



Alabama & Black War- 

 rior river. 



Elk river. 



Black Warrior river. 



Black Warrior river. 



Cooper river & Wateree 

 Canal, S. C. 



Savannah river. 



Rappahannock, Va., & 

 South. Carolina. 



Alabama. 



Alabama river. 



Fox River. 

 Flint River. 



Tennessee. 

 Greene Co., Ala. ' 

 Santee Canal, S. C. 

 Flint river, Ga. 

 Ala. river (Claiborne). 

 Tenn. riv. at Florence. 

 Black Warrior riv., Ala. 

 Black Warrior riv., Ala. 

 Tenn. & Holston rivers. 

 North Alabama. 

 Black Warrior river. 

 Black Warrior river. 

 Elk river, Ala. 

 Elk river, Ala. 

 Tuscumbia, Ala. 

 Tombeckbee river. 

 North Alabama. 

 Greene Co., Ala. 

 Black Warrior river. 



Pago. ITaino. 



31 Unio undatus Barnes. 



39 congareeus Lea. 



40 nasutus. 



40 angustatuB Lea. 



40 ochraceus Suij? 



Locality. 

 Alabama. 

 Savannan river. 

 Santee canal and Augnsta. 

 Santee canal and Augusta. 

 Santee canal & Rappahannock. 



