88 



BIBLIOGRAPHY OP 



208 137 



209 139 



210 140 



211 141 



Family Limneana 



Pa. Fig. 

 Planorbis trivolvis Say. 



Cochlt a trium orbium Lister. 



P. corpulentua Say. 

 lentus Say. 

 bicarinatus Say. 213 142 



Helix angulatus Rackett. 214 143 



campanulatus Say. 215 144 



armigerus Say. 



hirsutus Gould. 216 145 



elevatus Adams. 217 148 



deflectus Say. 



P. virens Adams (var.) 218 149 



exacutus Say. 218 151 



P. exacuous Say. 219 150 



parvus Say. 221 146 



dilatatus Gould. 223 



P. lens? Lea. 

 Physa heterostropha Say. 224 153 



Bulla font inal is IndiiB Orien- 224 152 

 talis Chemn. 



Lam. 



Cochlea neritoides Lister. 

 Bulla fontinalis Gmel. (var.) 



crassula Dillw. 

 Limnea heterostropha Say. 

 Physa ancillaria Say. 



elongata Say. 

 Limnasa columella Say. 

 Lymnaus navicula Val. 

 (var.) chalybea Gould. 

 macrostoma Say. 



Limnea acuminata Adams. 

 umbilicata Adams. 

 modicellus Say. 

 desidiosa Say. 

 -7 elodes Say. 



catascopium Say. 

 Lymneus cornea Val. 

 Ancylus rivularis Say. 

 fuscus Adams. 



Family Peristomata Lam. 



225 156 Valvata tricarinata Say. j 227 p. 144 Paludina decisa Say. 



Cyclostoma tricarinata Say. P. limosa Val. 



V. carinata Sowb. i 229 157 Amnicola porata Say. 



(var.) simplex. Paludina porata Say. 



226 155 pupoidea Gould. 



Family IVeritacea Lam. 



231 163 Natica heros Say. 

 233 165 triseriata Say. 



immaculata T<>tt. 



canaliculata Gould. 



duplicata Say* 



pusilla Say. 



234 168 



235 161 



236 164 



237 166 



238 167 Natica clausa Br. & Sowb. 



N. consolidata Couth. 

 borealis Beck. 



239 162 flava Gould. 



240 Janthina fragilis Lin. 



Helix janthina Lin. 

 Janthina communis Lam. 



Family Itlaoostoniata Lam. 



241 159 Velutina laevigata Lin. 

 lb lix laevigata Liu. 



haliotoidea Fabr. 

 Bulla velutina Mull. 

 V. capuloidea Blainv. 

 rupicola Conr. 



Galericulum l.Tvigatum Brown. 

 242 160 Velutina zonata Gould. 

 244 158 Sigaretus haliotoideus Lam. 



Jlilix haliotoidea Lin. 



Bulla haliotoidea Mont. 



Oxyiloe glabra Couth. 



