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Scientific names for Aves taxonomy (family and below) are from The Howard and Moore Complete Checklist of the Birds of the World, Princeton University Press, copyright 2003. Used by permission.
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Order Neritopsina
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Family Helicinidae -



Genus Alcadia -



Genus Helicina -



Subfamily Helicininae -



Genus Bourciera -



Genus Hemipoma -



Genus Ogasawarana -



Genus Olygyra -



Genus Orobophana -



Genus Pleuropoma -



Genus Schasicheila -



Genus Stoastoma -



Genus Stoastomops -



Genus Sturanya -



Genus Hendersonia -



Subfamily Hendersoniinae -



Genus Waldemaria -



Genus Lucidella -



Genus Oligyra -



Subfamily Vianinae -



Genus Calidviana -



Genus Calybium -



Genus Eutrochaetella -



Genus Geophorus -



Genus Heudeia -



Genus Pseudotrochatella -



Genus Pyrgodomus -



Genus Viana
