388 



LIFE OF THE PLEISTOCENE 



Galba catascopium (Say) 



" emarginata canadensis (Sowb.) 



Auriculidae 



Carychium exignum (Say) 



" exile H. C. Lea 



Valloniidae 



Vallonia parvida Sfeerki 



" gracilicosta Reinh 



" cosiata CMiiller) 



" pulchella (Muller) 



" perspectiva Sterki 



" cyclophorella Ancey 



PCJPILLIDAE 



Strobilops labyrinthica (Say) 



" affinis Pilsbry 



" virgo Pilsbry 



Pupoidcs marginalia (Say) 



^Bifidaria armifera (Say) 



" conlracta (Say) 



" pentodon (Say) 



" tappaniana (C. B. Adams).. 



" holzingeri Sterki 



" procera (Gould) 



corticaria (Say) 



Pupilla mttscorum (Linn.) 



" blandi (Morse) 



" decora (Gould) 



Leucochila fallax (Say) 



Vertigo tridentata Wolf 



" ovata Say 



" milium Morse 



" morsel Sterki 



" bollesiana Morse 



" elatior Sterki 



" modesta Say 



COCHLICOPIDAE 



Cochlicopa hibrlca (Muller) 



SUCCINEIDAE 



Succinea ovalis Say.. 

 " avara Say.. 



18 This genus is now known as Gastrocopta 



