66 



INDEX 



Spire 18 



slenolrema, Polygyra 58 



Slrialura 77 



milium 77 



milium tneridionalis 77 



milium milium 77 



Slrobila Ill 



Strobilops Ill 



aenea 114 



aenea aenea 114 



aenea micromphala 115 



aenea spiralis 115 



affinis _ 113 



labyrinthica 110, 111 



labyrinlhica labyrinthica Ill 



labyrinthica parietalis 112 



labyrinthica virgo 112 



STROBILOPSIDAE 22. 110 



Strode, W. S 26 



Stylommatophora 37, 40 



Succinea 11, 121 



aurea 148 



avara 121, 124 



avara avara 124 



avara wardiana 124 



concordialis 123 



grosvenorii 124, 148 



higginsi 148 



iUinoisensis 126 



nuttalliana 147 



ovalis 122 



ovalis optima 122 



ovalis ovalis 122 



retusa 125 



retusa decampi 126 



retusa iUinoisensis 126 



retusa magister 125 



retusa peoriensis 126 



retusa retusa 125 



salleana 127 



vermeta 124 



SUCCINEIDAE 121 



Suture 18 



System, binomial 19 



T 



Tail 4 



tappaniana, Gasirocopta 101 



Tebennophorus 133 



Teeth 6, 7. 18 



Tentacle 3,4 



Testacella 



europaea 142 



haliolidea I43 



haliotoidea 143 



thyroides, Polygyra 56 



thyroidus, Polygyra 56 



Trays .' .' . .'.'.14, 16 



Trematoda 25 



tridentata 



bidentata, Polygyra 45 



edentilabris, Polygyra 45 



frisoni, Polygyra 17, 18, 45 



Polygyra 7, 45 



Polygyra tridentata 45 



tridentata, Polygyra 45 



unidentala, Polygyra 45 



Vertigo 106 



U 



Ulffers, H. a 26 



Umbilicus ' ig 



unidentata, Polygyra tridentata 45 



Upper palatal fold 93 



V 



'^'alle>s 29 



Vallonia j 15, 



coslata i 16,' \\i ,' \\9 



excentrica ng 



parvula 119 



pulchella ng 



VALLOXIIDAE '..'..'.'.'.'.'.116 



ventricosa. Vertigo 105 



Ventridens gi 



demissus ' g2 



gularis .82, 150 



intertextus 82. ISO 



ligerus ' gi 



vermeta, Succinea 124 



Vertigo .....!' .103 



elatior 105 



gouldii 163, 147 



loessensis iQ^i 



milium 107 



morsei 19. 104 



ovata .105 



simplex ] 09 



tridentata 1 06 



ventricosa 105 



Vials, shell 14. I6 



virgo, Strobilops labyrinlhica ~. . 1 1 2 



viridulus, Vitrea 70 



Vilrea 



capsella 73 



cellaria 1 40 



hammonis 69 



viridulus 70 



Vitrina limpida 149 



vulgatus, Mesomphix perlaevis 68 



w 



Walker, Bryant 25 



Wall, parietal ig 



u-ardiana, Succinea avara 124 



ivheatlevi, Relinella 70 



Whorl 13 



body Ig 



Wolf, John 26 



z 



zaleta, Polygyra 50 



Zonites gl 



cellaria 140 



fuliginosa 66 



laevigata 68 



ZOXITIDAE 22. 64 



Zonitoides 23. 78 



arboreus 23. 78 



limatulus 80 



minusculus 72 



ui'idus 79 



Zonitoids 13. 23 



