186 



LE NATURALISTE CANADIEN 



Crepidula plana, Say. 

 Calyptrœa noachina, Linn. 



Trichotropidae. 

 TricliOtropis borealis, Brod. 



Scal&riidae, 

 Scalaria commuais, Lam. 

 k ' groenlandica, Pary. 

 TinTitc!li:£ae. 

 Turritella erosa. Couth 



" reticulata, Mighels. 

 Littorinidde. 

 Littorina littoralis, Stimps. 

 " rudis, Montagu» 

 " littorea, Fabr. 

 " obtusata, Linn. 

 Lacuna vincta, Fabr. 



Streponiatidae. 

 Goniobasis livesceus, Say. 



" Haldemani, Tryon. 



Rissoidie. 

 Skenea costulata, Verrill. 

 Amnioola porata, Say. 

 ** gran u m, Say. 



** lapidaria, Say* 



Rissoa minuta, Totten. 

 Valvatidae. 

 Valvata tricarinata, Say.* 

 " sincera, Say. 

 " humeralis, Say. 

 Paludinidx. 

 Paludina decisa, Say, 

 " intégra, Say. 

 Iiirbinidae. 

 Trocbus albulus, Moll. 

 Margarita citierea, Gould, 

 " striata, Brod. 

 " undulata, Chemn. 

 " obscura, Couth. 

 • s heliciua, Fabr. 

 iC varicusa, Mighels. 

 PatclUdœ. 

 Âcmœa testudinalis, Forb-es. 



" caeca, Moll. 

 Cylichua alba, Brown. 



ChitonJdae. 



Chiton marmoreus, Fabr. 

 Leptochiton albus, Linn. 

 Deartkrochiton Emersouii, Couth 



BuHidw. 

 Bulla debilis, Gould. 



Vttrinidae* 



Vitrina pellucida, Gould. 



" limpida, Gould. 



Zonitidao 



Zonites coucava, Say. 



Helicidae* 



Helix albolabri*, Say. 



" aJternata, Say. 

 • " monodon, Say- 



" exolela, Binn. 



" trideutata, Say. 



" nemoralis, Linn. 



" aiborea, $a?/. 



" 6triatella, A/tth- 



" liueata, Saw. 



" labynnthica, £««/, 



" pulchella, Mull. 



" viridula, Meuke. 



" fulva, Drap. 



" Sayi, Binn. 



'• multidentata, Binn- 



" iiidentata, *S"a*/. 



" exigua, Stimps. 



" minutissima, Zea* 



" nitida, Jftitf. 

 Bulimus lubricus, Drap. 

 " liarpa, &«#. 

 Pupidse. 

 Pupa pentodon, «Sfay. 



" contracta, À(y. 



" corticaria, Say. 

 Vertigo ovata, Say. 



" Gouldii, Binn. 



" simplex, Gould. 

 Liiuaiidae. 

 Li max compestris, Prime. 



" agrestis, Linn. 

 Tebeiiuephoras Caroliuiensis, Bose. 



