NORTH AMERICAN CONCHOLOGY. 265 



No. 18— September 9, 1829. 



Page of Page of Page of 

 Say's IS"'. H. Biuuey's Xame. Locality, 



idition. 



143 Melania laqueata Smj. Cumberland river. 



obovata Saij. Kentucky river, 



integra Sai/. Ohio river. 

 isogona Say. Bear-grass cr., Louisville. 



trilineata Say. Falls of Oliio. 



No. 19 September 23, 1829. • 



Melania depygis Sai/. Falls of Ohio. 



TJnio heros *S'«^. Fox river. 



peruvianus Auct. Am. = U. plicatus. 



cicatricosus Say. Wabash. 



monodonta Say. Falls of Ohio. 



velum Say. Kentucky river. 



cardice Say = U. cordata. 



incurvus Say = U. intorta. 



Xo. 20.— October 7, 1829. 



TJnio dehiscens Say. Wabash. 



ridibundus Say. Cumberland river. 



personatus Say. Wabash. 



apiculatus Say. ^'ear New Orleans. 



Xo. 21.— October 21, 1829. 



323 134 Unio radula Say. 



324 134 purpureus Say. 



Xo. 22.— Xovember 4, 1829. 



Alasmodonta sculptilis Say. Virginia. 



confragosa Say. Wabash river. 



edentula Say. Wabash river. 



Anodonta implicata Say. Danvers, Mass. 



lugubris <S'</^. Cumberland river. 



grandis Say. Fox river. 



Xo. 23.— Xoveralier 18, 1829. 



Anodonta impura »S'a^. Mexico. 



imbecillis Say. Wabash river. 



Cyclas edentula Say. Lake Canandaigua. 



transversa Sry. Kentucky. 



triangularis ,SV/^. Mexico. 



print. 



Diss. 



editio 



17 



275 



143 



18 



276 



143 



18 



273 



144 



19 



227 



144 



19 



227 



144 



19 



291 



145 





201 



1G5 





291 



225 



5 



292 



131 





293 



155 



5 



293 



132 



5 



293 



132 



5 



283 



132 





308 



131 





308 



131 





309 



131 





309 



131 



10 



339 



137 





339 



131 



10 



340 



137 



11 



340 



138 



11 



340 



138 



12 



341 . 



139 



12 



3.-35 



139 



13 



355 



140 



10 



356 



137 



10 



350 



1.38 



11 



35G 



138 



