NORTH AMERICAN CONCHOLOGT. 



163 



Tas 

 14 



14 



14 



14 



14 



14 



15 



Lampsilis ventricosa-i^r. MS. 



Unio ventricosus Barnes. 

 siliquoidea Ag. MS. 

 Unio siliquoideus'Ba.rnes. 

 Metaptera alata Ag. MS. 

 Unio alatus Say. 

 gracilis Ag. MS. 



Unio gracilis Barnes. 

 Complanaria rngosa Ag. MS. 

 Alasmodonta rugosa Barn, 

 alasmodontina Ag. MS. 

 Unio alasmodontinusBsiTn. 

 compressus Lea. 

 Margaritana arcuata Phil. 

 Alasm. arcuata Barnes. 



15 



Alasmodonta marginata S. 

 Strophitus tmdulatus Eaf. 



Anodonta undulata Say. 

 sculptilis Ag. MS. 



Uiio undulata Say. 



Alasm. undulata Barnes. 



Alasm. sculptilis Say. 

 Anodonta Benediotensis 

 implicata Say. ^Lea. 



fluviatilis Lea. 



Mytilus fluviatilis Dill. 

 marginata Say. 

 Housatonica Linsley. 

 subcylindracea Lea. 



16 Cyolas similis Say. 



16 rhomboidea Say. 



16 elegans Adams. 



16 partumeia Say. 



16 pellucida Prime. 



C. calyculata Adams 



16 truncata Linsley. 



16 orbicularia Barratt. 



Cycladidae. 



16 



Pisidium dubinm Gould. 



Cyclas dubia Say. 

 16 minus St. 



Cyclas 7ninorAd. etMigh. 

 16 Adamsii Prime MS. 



Cyclas nitida Ad. etMigh. 

 16 ventricosum Prime. 



16 MontacTita elevata .S'^ 

 J/. bid( iilala Gould. 



16 Turtonia minuta Alder. 



Venus minuta 0. Fabr 



Kelliadac. 



17 



Kellia planulata St. 

 K. rubra Gould. 



L<ucinidae. 



17 Thyasira Gouldii St. 



Lucina Gouldii Phil. 

 Lucina flexuosa Gould. 



17 Lucina strigilla St. 



L. divaricata Auct. 

 17 filosa St. 



L. radula Gould. 



Astartidae. 



17 Cardita borealis Conr. 



18 Astarte mactracea Linsley. 



A. lunulala Conr. ? 

 18 sulcata Flem. 



Peclunculus sulcatus Da C. 



A. undata Mighels. 

 18 Astarte PortlandicaM^f^eZs. 

 18 quadrans Gould. 



1 8 castanea Say. 



