MOLLUSCA OF MICHIGAN— WALKER. 525 



INDEX TO SCIENTIFIC NAMES. 



Note. — Names of genera and other groups are printed in Small Capitals; of synonyms 

 in Italics. The specific name precedes that of the generic in all cases. 



Page. 



ACANTHINULA 507 



Affinis, Strobilops 507 



Agnathomorpha 472 



Agrestis, Agriolimax 489 



Agrestis, Limax 489 



Agriolimax 488 



Albinula 510 



Albolabris, Helix 464 



Albolabris, Mesodon 464 



Albolabris, Polygyra 464 



Albolabris dentata, Mesodon 465 



Albolabris dentata, Polygyra 465 



Albolabris niaritima, Helix 465 



Albolabris maritima, Polygyra 465 



Albolabris minor, Polygyra 465 



Albolabris traversensis , Polygyra 465 



Alternata, Helix 491 



Alternata, Anguispira 491 



Alternata, Anguspira 491 



Alternata, Patula 491 



Alternata, Pyramidula 491 



Alternata alba, Anguispira 492 



Alternata alba, Anguspira 492 



Alternata alba, Patula • 492 



Alternata alba, Pyramidula 492 



Arborea, Helix 484 



Arborea, Hyalina 484 



Arborea, Zonitoides 484 



Arboreus, Helix ■ 484 



Arboreus, Zonites 484 



ARIOPHANTINiE 482 



Armif era, Bifidaria 510 



Armifera, Leucochilla 510 



Armif era. Pupa 510 



Asteriscus, Helix ' 494 



Asteriscus, Patula 494 



Asteriscus, Pyramidula 494 



Aulocopoda • 473 



Aurea, Succinea 524 



AuRicuLiD^ 522 



Avara, Succinea 503 



Avara alba, Succinea 503 



Avara major, Succinea 503 



Avara vermeta, Succinea 503 



Basommatophora 522 



Bifidaria ^^9 



Bigranata, Pupa ^Iq 



BinneyaTUL, Hyalina j ' ^ 



Binneyana, Vitrea : ^79 



Binneyanus, Zonites ^^ 



Bollesiana, Isthmia ^ j° 



BoUesiana, Vertigo ^^^ 



52 



