NORTH AMERICAN CONCHOLOGT. 



43 



Vol. Pa. Name. 



ii 83 Helix interna, 



ii 84 Rafinesquea. 



ii 84 lineata. 



ii 84 multideutata. 



Locality. 



August," 1S45. 



ii 115 Menke. — Kritische iibersicht der lebenden Valvata-Arten : 

 vom Heradsgeber. 



11 



121 Valvata tricarinata Sai/. 



Delaware, &c. 



Silesia, &c., N. Ame- 

 • [rica. 



Ci/clostoma tricarinata Say 

 Valvata carinata Sowb. 

 ii 121 depressa Pfr. 



Valvata media Fer. 



pulchella Studer. 

 spirorbls Hartm. 

 sincera S.ay. 

 tiinbil icata Fitzing. 

 tricarinata (var.) simplex Gould, 

 ii 129 humerosa Sai/. 



ii 130 lustrica. 



Amnicola lustrica Say. 



October, lS4.i. 



ii 152 PfeiflFer. — Diagnosen einiger neuer Heliceen : rom Dr. L. 



Pfeiffer. 



ii 152 Helix Buffoniana Pfr. Mexico, 



ii 152 levis Pfr. California. 



ii 154 areolata Pfr. California. 



February, 1S46. 



iii 19 Philippi. — Diagnosen einiger neuer Conchylien-Arten : 



vom Dr. R. A. Philippi. 



Corbula alba Phil. Mazatlan. 



Tellina cicercula Phil, Mazatlan. 



lenticula /'/(//. Mazatlan. 



dichotoma Phil. Mazatlan. 



ervilia Phil. Mazatlan. 



flexuosa Say (note). 



Diplodonta obliqua Phil. Mazatlan. 



Liicina cancellaria Phil. Mazatlan. 



Patella pediculus Phil. Mazatlan. 



Siphonaria Lecanium Phil. Mazatlan. 

 Trochus disculus Phil. Mazatlan. 



4 



