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2,243 species in Mammoth Cave National Park
Virginia valeriae
Vulpicida viridis
Woodwardia areolata
Xanthoparmelia subramigera
Xylobolus frustulatus
Xylomya simillima
Yucca filamentosa
Zonitoides arboreus
Allogona profunda
Alobates pensylvanicus
Ambystoma tigrinum
Ameiurus nebulosus
Anaea andria
Anatherum virginicum
Ancyloxypha numitor
Andropogon gerardi
Anisomorpha ferruginea
Anser caerulescens
Anthrobia monmouthia
Anticarsia gemmatalis
Anzia colpodes
Aphaenogaster lamellidens
Apheloria tigana
Aquila chrysaetos
Araneus marmoreus
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