NORTH AMERICAN CONCHOLOGT. 



227 



[Here follows a list of species with, whicli the author is unacquainted. 

 No habitats being given, I cannot be sure of any being American, but pre- 

 sume the following to be so. — W. G. B.] 



Page. 



39 

 40 



40 

 40 



ITnio Aberti Conrad. 

 furvus Conrad. 

 metastriatus Conrad. 

 Mezicanus Phil. 



40 Unio parallelus Conrad. 

 40 Pequottinus Linsl. 



40 puniceus Hald. 



40 purpuriatus Say. 



Subgenus Margaritana. 



(Stmphtsote.) 

 (a. Plicate.) 

 42 Margaritana c o mplanata Lea. 

 Alas, complanata Barnes. 

 Symph. complanata Lea. 

 Unio complanata Desh. 

 Katherina Lea. 



42 



42 

 42 



42 



42 

 42 

 42 



(Non-Stmphtnote.) 



(a. Plicate.) 



confragosa Lea. 



Alas, confrarjosa Say. 

 Unio confragosa Desh. 

 arcula Lea. 

 marginata Lea. 



Alas, marginata Say. 



truncata Say. 

 Unio cariosa Lam. (var. 2 ) 

 varicosa Lam. 

 calccolus Say. 

 Mjja refjulosa "Wood. 

 Alas, corrugata De Kay. 

 rugosa Lea. 



Alas, rugosa Barnes. 



abducta Say. 

 Complanaria rugosa Stim. 



(b. Smooth.) 

 deltoidea Lea. 

 minor Lui. 

 Curreyana Lea. 



42 Margaritana tindulata Lea. 

 Alas, undulata Say. 



sculptilis (jun.) Say^ 

 Strophitus sculptilis Stim^ 

 Mya undulata "Wood. 

 Unio Mans Valen. 



glabratus Sowb. 



42 Raveneliana Lea. 



43 radiata Lea. 



Alas, radiata Conrad. 

 Uniopsis radiata? Swaicw 

 calceola Lea. 



Unio calceolus Lea. 

 Aids, marginata Say. 

 truncata Conrad, 

 Hildrethiana Lea. 



Unio Uildrethianus Lea. 

 Alas, ambigua? Say. 

 43 dehiscens Lea. 



Unio dehiscens Say. 

 oricns Lea. 



43 margaritifera Lea. 



M. Jluviatilis Schum. 

 arcuata Stimpson. 

 Unio Carolinianus Bosc. 

 Alas, arcuata Barnes. 

 falcata Gould. 



44 Holstonia Lea. 

 44 fabula Z(?a. 



(Unknown.) 

 44 Etowaensis Conrad. 



43 



43 



Subgenus Anodonta. 



47 



(Stmphtnote.) 

 (a. Smooth.) 



Anodonta Wahlamatensis 



Lea. 



47 Anodonta BenedictensisZea. 



Syniph. Bcntdictensis Lea. 

 A. cultralus Gould. 

 47 Nuttalliana Lea. 



