220 



BIBLIOGRAPHY OF 



Page. 





Page 



369 



Unio verrucosus Raf. 



370 





U. tuberculatus Barnes. 



370 



369 



Metaptera alata Conrad. 



Unio alatus Say. 





309 



fragilis Conrad. 

 Unio fragilis Say. 



370 





gracilis Barnes. 



370 



369 



Plectomerus plicatus Conr. 

 Unio plicatus Barnes. 





370 



Complanaria complanata 



Conrad. 



370 





Alasmodonta complanata 



370 





Barnes. 





370 



costata Conrad. 



370 





Alasmodonta costata Raf. 



370 





rugosa Bar. 





370 



compressa Conrad. 

 Symphynota compressa Lea. 



370 



Alasmodonta marginata S. 

 leptodon Raf. 



Unio pilanus Barnes. 

 tenuissima Lea. 

 Strophites calceolus Conr. 

 Unio calceolus Lea. 

 edentulus Conrad. 



Alasmodonta edentida Say. 

 Anodonta edentula DeKay. 

 Anodonta cataracta Say. 

 A. Jluviatilis Lea. 

 declivis Conrad. 



A. plana Lea. 

 Ferussaciana Lea. 

 imbecilis Say. 

 A. incerta Lea. 

 Cyclas similis Say. 



liCa. — A Synopsis of the Family of I^aiades: by Isaac Lea, 

 Member of the Amer. Phil. Soc, &c. Third edition, greatly 

 enlarged and improved. Philadelphia, 1852.^ 



Genus MARGAROIV. 

 Subgenus Uiiio. 



19 

 19 

 19 



19 



(Stmphtxote.) 

 Unio Nicklinianus Lea. 

 Boykinianus Lea. 

 inflatus Lea. 



Symph. injlata Lea. 

 U. Alahamensis Conrad. 

 alatus Say. 



Mya alata Wood. 

 Symph. alata Lea. 



Lymnadia alata Sowb. 



Metaptera alata Stimp. 

 19 Unio laevissimus Lea. 



Symph. Isevissima Lea. 



U. Isevissima Desliayes. 

 19 gracilis Barnes. 



U. planus Barnes. 

 fragilis Swain. 



Symph. gracilis Lea. 



1 There is also, in the marginal notes, mucb information regarding the 

 synonymy which is not given in a shape convenient to embody in my ex- 

 tract. As no localities are given, I have taken only those species which 

 are repeated by Mr. Lea in the North American sections of his geographical 

 tables. Mr. Lea published tliree editions of this Synopsis, in the Transac- 

 tions of the Philosophical Society (q. v.), in 1836 and in 1852. The last 

 two now follow. — W. G. B. 



