NORTH AMERICAN CONCHOLOGT. 



Pa. Fig. 



162 92 Bulla insculpta Totten. 



B. solitaria? Say. 



163 100 hiemalis Couth. 



163 94 Gouldii Couth. 



164 95 debilis Gould. 



165 98 triticea Couth. 



Family Bulleana Lam. 



Fig. 



Pa. 



166 



167 

 168 

 169 



97 Bulla canaliculata Sai/. 



Volvaria canaliculata Say. 



Bullina canaliculata Say. 

 96 obstricta Gould. 

 93 oryza Tott. 

 99 liueolata Couth. 



Family Colimacea Lam. 



170 101 Helix albolabria Say. 



Cochlea Virginiana Lister. 



171 108 thyroidus Say. 



Cochlea umbilicata Lister. 



terrestris Virginiana 

 Scliroet. 

 Mesodon leucodon Raf. 



172 hortensis Mull. 



H. subglobosa Binney. 



173 115 tridentata Say. 



174 113 monodon Rack. 



175 116 hirsuta Say. 



II. fraterna Wood. 

 Stenotrema convexa Raf. 



176 102 pulchella Mull. 



Turbo helicinus Lightfoot. 

 II. paludosa Mont., &c. &c. 

 miniita Say. 



177 114 alternata Say. 



II. scabra Lam. 

 radiata Gmel. 



178 112 Btriatella Anthony. 



179 103 lineata Say. 



Planorbis parallelus? Say. 



180 104 cellaria Mull. 



II. nitida Drapamaud. 



nitens Maton & Rackett. 



glaphyra Say. 

 Zonites cellarius Gray. 

 lucida Leach. 



181 109 Indentata Say. 



182 110 arborea Say. 



183 111 electrina Gould. 



184 106 labyrinthica Say. 



185 105 



186 117 



187 118 



188 119 



189 120 



190 121 



191 122 



192 123 



193 124 



194 125 



195 126 



196 127 



197 130 



199 129 



Helix chersina Say. 

 Pupa contracta Say. 

 milium Gould. 

 modesta Say. 

 curvidens Gould. 

 simplex Gould. 

 exigua Say. 

 fallax Say. 



Cyclostoma marginata Say. 



P. fallax? Say. 

 placida? Say. 

 Bulimus lubricus Mull. 



Helix lubrica Miill. 



Cionella lubrica Jeffr. 



Achatina lubrica Michaud. 



Turbo glaber Da Costa. 



Cochlicopa lubrica Ferussac. 



Zua lubrica Leach. 

 Succinea ovalis Say. 

 campestris Say. 

 avara Say. 



S. vermeta Say. 

 Auricula bidentata Say. 



Melampus bidentatus Say. 



A. cornea Desh. 

 denticulata Mont. 



Valuta denticulata Mont, 



Actxon denticulatus Fleming. 



Jaminea denticulata Leach. 



Conovulus denticulatus Gray. 



A. myosotis Jeffr. 



Carychium personatum Mich. 



A. personata Desh. 



