NORTH AMERICAN CONCHOLOGT. 



95 



No. 





No 





179 



Planorbis deflectus Say. 



219 



Vermetus lumbricalis Larr. 



ISO 



dilatatus Gould. 



220 



Skenea serpuloides Flem. 



181 



elevatus Adams. 





Delphinuia serpuloides Ad 



182 



exacutus Say. 



221 



Scalaria Groenlandica Gld. 



183 



hirsutus Gould. 





S. suhulala Couth. 



184 



lentus Say. 



222 



lineata Say. 



185 



parvus Say. 



223 



multistriata Say. 



186 



trivolvis Say. 



224 



Nov-Angliae Couth. 



187 



virens. 



225 



Margarita cinerea Gould. 



188 



Physa ancillaria Say. 





Turbo cinereus Couth. 



189 



elongata Say. 



226 



argentea Gould. 



190 



heterostropha Say. 



227 



arctica Leach. 



191 



Limnaea columella Say. 





Turbo inflatus Totten. 



192 



var. chalybea Gould. 



228 



Obscura Gould. 



193 



catascopium Say. 





Turbo obscurus Couth. 



194 



elodes Say. 



229 



undulata Sowb. 



195 



desidiosa Say. 





Turbo incarnatus Couth. 



196 



znacrostoma Say. 



230 



Littorina palliata Gould. 





L. acuminata Adams. 





Turbo palliatus Saj. 



197 



modicelluB Say. 



231 



rudis Gould. 



198 



umbilicata x\.d(uns. 





Turbo obliyatus Say. 



199 



Ancylus fuscus Adams. 



232 



tenebrosa Gould. 



200 



rivularis Say. 





Turbo vestitus Say. 



201 



Valvata pupoidea Gould. 



233 



Lacuna neritoidea Gould. 



202 



tricariuata Say. 



234 



vincta Gould. 



203 



Paludina decisa Say. 





L. pertusa Conr. 



204 



Amnicola porata Say. 



235 



fusca Adams. 



205 



Natica canaliculata Gould. 



236 



Cingula aculeus Gould. 



206 



clausa JJrod. 





Turbo aculeus Adams. 





A', consolitlata Couth.. 



237 



minuta Gould. 



207 



duplicata Say. 





Turbo minuta Totten. 



208 



flava Gould. 



238 



Turritella erosa Couth. 



209 



heros Say. 



239 



interrupta Totten. 



210 



immaculata Totten. 



240 



Pyramis striatula Couth. 



211 



pusilla Say. 



241 



Odostomia exigua Gould. 



212 



triseriata Say. 





Jaminia exiyua Couth. 



213 



One .species not Identified. 



242 



fuBca Gould. 



214 



Janthina fragilis Jhw/. 



243 



producta Gould. 



215 



Velutina laevigata (Jould. 





Jdininia producta Ad. 





V. rupicola Conr. 



244 



seminuda Gould. 



216 



zonata Gould. 



245 



tri&da Gotdd. 



217 



Sigaretus haliotoideus Lam. 





Acteon trifidus Totten. 





0.ryni)i- ijliihra Couth. 



24(3 



Cerithium Emersonii Ad. 



218 



Tornatella puncto-striata 



247 



Greenii Adams. 





Adams. 



248 



nigrocinctum Adams. 



