NORTH AMERICAN CONCHOLOGY. 45 



Vol. Pa. Name. Locality. 



February, 1847. 



Pfeiffer. — DIagnosen neuer Heliceen. 



iv 32 Helix pachyloma Mhe. Texas. 



April, lS-47. 



iv 59 Dimlier. — Diagnoses Biiccinorum quorundum novorum. 



Auctore Guil. Dunkek. 



iv 61 Bucciuum Antoni Dunher. Mexico. 



May, 1S47. 



iv 71 Philippi. — Testaceorum novorum centuria. Descripsit 



Dr. A. R. Philippi, 



iv 73 Periploma anguliferum Phil. Galveston, Texas, 



iv 77 Donax Texasiana Phil. Galveston, Texas. 



June, 1S47. 



iv 95 Unio Aztecorum Phil. Mexico, 



iv 95 Mexicanus Phil. Mexico, 



iv 96 Liebmanni Phil, Mexico. 



August, 1847. 



iv 113 Modiola Californiensis Esch. California. 

 (^Pholas lapsu calami.) 



October, 1847. 



iv 145 Pfeiifer. — Diagnosen neuer Landsclinecken. 



iv 147 Bulimus harpa. 



iv 150 Helicina lirata Pfr. Mexico, Yucatan. 



iv 151 Aphorismen zur Geschichte der Helicinaceen. 



Notes on — 

 iv 155 Helicina orbiculata. Texas. 



December, 1S47. 



Of enke. — Verzeichniss einer Sendung von Conchylien von 

 Mazatlan,mit einigeu Kritischen Bemerikungen : vom Dr. 

 K. Th. Mexke. 



Siphonaria lecanium Phil. 

 Littorina aspera Pliil. 

 Turritella imbricata Lnm. 

 Vermetus glomeratiis Rousseau. 

 Natica iostoma Mke. 

 maroccana Koch. 



Nerita maroccann Chemn. 

 Chemnitzil Pfr. 



iv 



177 



iv 



178 



iv 



178 



iv 



178 



iv 



178 



iv 



179 



