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 vespertina, Sonorella, 366

veterna, Helix, 66

vincta, Helix, 90

vincta, Helminthoglypta, 92

virilis, Sonorella, 379

vortex, Oreohelix, 497

walcottiana, Sonorella, 248

walkeriana, Helix, 128

walkeriana, Helminthoglypta, 128

walkeri, Sonorella, 286

wasatchensis, Oreohelix, 456

wasatchensis, Patula, 456

wawona, Helminthoglypta, 157

weberiana, Oreohelix, 454

willetti, Epiphragmophora, 180

willetti, Helminthoglypta, 180

williamsi, Helminthoglypta, 109, 115

winslowensis, Oreohelix, 516

wolcottiana, Micrarionta, 248

wolcoltiana, Sonorella, 248

xanthenes, Sonorella, 321

Xerarionta, 204, 214

Xeroclivia, 22

Xerophila, 12, 21

xerophila, Micrarionta, 249

yatesi, Ammonitella, 562

yatesi, Gonostoma, 562

yatesii, Ammonitella, 562


 * Helix, 562

yavapai, Oreohelix, 517

yosemitensis, Epiphragmophora, 61

yosemitensis, Helminthoglypta, 158


 * Monadenia, 61

zechae, Epiphragmophora, 189

zechae, Helminthoglypta, 189