MOLLUSCA 0P\ MICHIGAN— WALKER. 527 



Page. 



Exigua, Helix ' 435 



Exi^ua, Pseudohijalina 485 



Exigua, Pupa 523 



Exigua, Zonitoides 485 



Exiguum, Carychium " ' ' 522 



Exiguus, Zonites _ _ 435 



Exile, Carychium 523 



Exile canadense, Carychium 523 



Exoleta, Helix \ . . . . 466 



Exoleta, Mesodon 466 



Exoleta, Polygyra 466 



Exoletus, Helix •. 466 



Fallax, Helix 463 



Fallax, Pupa 508 



Fallax, Triodopsis 463 



Ferrea. Striatura 479 



Ferrea, Vitrea 479 



Ferreus, Zonites 479 



Fraterna, Helix 470 



Fraterna, Polygyra 470 



Fraterna, Stenotrema 471 



Fraterna albida, Polygyra 471 



Fraudulenta, Polygyra 462 



Fuliginosa, Helix 475 



Fuliginosa, Hyalina 475 



Fuliginosa, Omphalina 474 



Fuliginosa, Zonites 475 



Fuliginosus, Zonites 475 



Fulva, Helix 482 



Fulvus, Euconulus 482 



Fulvus, Zonites 482 



Gastrodoxta 486 



Gehydrophila 522 



Glyphyalina 480 



GoxYODiscus 492 



Gouldii, Pupa 517 



Gouldii, Vertigo 517 



Hammonis, Helix 478 



Hammonis, Vitrea 477 



Harpa, Acanthinula 508 



Harpa, Helix 508 



Helicid^ 459 



Hemphilli, Pallifera 499 



Hemphilli, Tebennophorus 499 



Helicodiscus 494 



Heterurethra 499 



Higginsi, Succinea 524 



Hirsuta, Helix 470 



Hirsuta, Polygyra 47Q 



Hirsuta, Stenotrema, 470 



Hirsutum, Strenotrema 470 



HoLOPODA • 459 



Hydrophila, Helix 483 



Indentata, Helix 480 



Indentata, Hyalina 480 



Indentata, Vitrea 480 



Indentatus. Zonites ■■ • ■■ 480 



Infleda, Helix 463 



Inflecta, Isognomostoma . w . 463 



Inflecta, Polygyra ..,.,.■• 463 



Inflecta, Triodopsis • • 463 



