CHECK LIST OF ILLINOIS LAND SNAILS 



HELICINIDAE 39 



Hendersottta A. J. Wagner 39 



occulta (Say) 39 



POLYGYRIDAE 40 



Polygyra Say 41 



dorfeuilliana (Lea) 44 



tridenlata Iridenlala (Say).. . . 45 



tridentata frisoni F. C. Baker. 45 

 Iridenlala bidenlala F. C. 



Baker 45 



Iridenlala unidenlala F. C. 



Baker 45 



Iridenlala edentilahris Pilsbry 45 



fraudulenla (Pilsbry) 46 



inflecla injlecla (Say) 47 



inflecla media Pilsbry 47 



inflecla edenUUa (Sampson). . 47 



profunda profunda (Say) .... 48 



profunda efasciala Walker. . . 48 



albolabris albolabris (Say).. . . 49 



albolabris alleni (Wetherby).. 49 



albolabris denlnta (Tryon) ... 49 



zaleta (Binney) 50 



mullilineala multilineala (Say) 51 

 mullilineata algonquinensis 



Nason 51 



multilineala alba Witter 51 



multilineala rubra Witter 51 



palliata (Say) 52 



obslricta (Say) 53 



appressa (Say) 54 



fosteri F. C. Baker 54 



elevata (Say) 55 



Pennsylvanica (Green) 55 



thyroidus (Say) 56 



clausa (Say) 57 



stenolrema (Ferussac) 58 



hirsula (Say) 59 



monodon (Rackett) 60 



fralerna fraterna (Say) 61 



fralerna cava Pilsbry and 



Vanatta 61 



leporina Gould 62 



BULIMULIDAE 63 



Bulimulus Leach 63 



dealbalus (Say) 63 



ZONITIDAE 64 



Mesomphix Rafinesque 65 



cupreus (Rafinesque) 66 



friabilis (W. G. Binney) 67 



perlaevis vulgalus H. B. Baker 68 



Retinella (Shuttleworth) Fischer 69 



eleclrina (Gould) 69 



wheatleyi (Bland) 70 



rhoadsi (Pilsbry) 70 



indenlata (Say) 71 



Hawaiia Gude 72 



minuscula (Binney) 72 



Paravitrea Pilsbry 73 



capsella (Gould) 73 



significans (Bland) 74 



Euconulus Reinhardt 75 



fulvus (Miiller) 75 



chersinus chersinus (Say). ... 76 

 chersinus polygyralus (Pils- 

 bry) 76 



Slriatura Morse 77 



milium milium (Morse) 7 7 



milium meridionalis (Pilsbry 

 & Ferriss) 77 



Zonitoides Lehmann 78 



arboreus (Say) 78 



nilidus (Miiller) 79 



limatulus ("Ward" Binney).. 80 



Venlridens W. G. Binney & 



Bland 81 



ligerus (Say) 81 



demissus (Binney) 82 



ENDODONTIDAE 83 



A nguispira Morse 84 



allernata alternala (Say) 84 



alter nata carinata (Pilsbry & 



Rhoads) 85 



kochi (Pfeiffer) 85 



Discus Fitzinger 86 



cronkhitei anthonyi (Pilsbry) 86 

 palulus (Deshayes) 87 



Helicodiscus Morse 88 



parallelus (Say) 88 



singleyanus inermis H. B. 

 Baker 89 



Punclum Morse 90 



pvgfmaeum (Draparnaud). ... 90 

 HAPLOTREMATIDAE 91 



Ilaplolrema Ancey 91 



concavum (Say) 92 



PUPILLIDAE 93 



Gastrocopta Wollaston 94 



armifera armifera (Say) 96 



armifera similis (Sterki) 96 



armifera affinis (Sterki). . . . . 96 

 armifera abbreviala (Sterki). . 97 



contracta contracta (Say) 98 



conlracla climeana Vanatta. . 98 



holzingeri (Sterki) 99 



pentodon pentodon (Say) 100 



penlodon gracilis (Sterki). . . . 100 

 lappaniana (C. B. Adams).. . 101 



corticaria (Say) 101 



procera procera (Gould) 102 



procera mcclungi (Hanna & 

 Johnson) 102 



Vertigo Draparnaud 103 



morsei Sterki 104 



ovata Say 105 



venlricosa (Say) 105 



elatior Sterki 106 



tridenlata Wolf 106 



milium (Gould) 107 



Pupoides Pfeiffer 108 



marginatus (Say) 108 



Columella Westerlund 109 



edentula (Draparnaud) 109 



STROBILOPSIDAE 110 



Strobilops Pilsbry HI 



labyrinthicalabyrinlhica {Sayi 111 

 labyrinthica virgo Pilsbry. . . .112 

 labvrinthica parielalis Pils- 



'bry 112 



affinis Pilsbry 113 



aenea aenea Pilsbry 114 



aenea micromphala Pilsbry.. 115 

 aenea spiralis Pilsbry 115 



[159] 



