IUCN threat status:

Not evaluated

Distribution

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Global Range: (>2,500,000 square km (greater than 1,000,000 square miles)) This species is distributed in temperatee and sub-Arctic North America from southern Alaska and northwestern Canada (but not in the extreme north) east and southeast to central Labrador, western New England and the vicinity of New York City; south to central California, Nevada, Utah, and Colorado; to the central Great Plains in eastern Kandas and eastern Oklahoma; east to the southern Appalachian Mountains; and also southward at higher elevations in discontinuous areas on the Mogollon Plateau and White Mountains, Arizona; Jemez, San Juan, Sangre de Cristo, and Zuni Mountains, New Mexico (Taylor, 2003). Burch (1989) lists several supposed synonyms including Physella gyrina gyrina from Canada, Quebec to Ontario south to Nebraska and east to New York; Physella gyrina gyrina morph elliptica and morph hildrethiana from Ontario south to Iowa and Missouri and east to New York; Physella gyrina alba from eastern Canada to Ontario and northeastern U.S.; Physella gyrina ampullacea from Manitoba west to British Columbia and south to California and east to Arizona and north to Minnesota; Physella gyrina athearni from Alberta; Physella gyrina aurea from New Jersey to Kansas and south to Arkansas and Florida; Physella gyrina aurea morph albofilata from Pennsylvania west to Kansas and south to Oklahoma and Alabama; Physella gyrina bayfieldensis from Northwest Territories south to Kansas; Physella gyrina cylindrica from Ontario and New York south to Virginia; Physella gyrina gouldi from Northwest Territories south to Wisconsin and Colorado; Physella gyrina hawni from Ohio west to Kansas and south to Texas and Alabama; Physella gyrina microstoma from Virginia to Missouri and south to Arkansas and Alabama; Physella gyrina sayi from Quebec to Northwest Territories south to Saskatchewan, the Dakotas and New York; Physella gyrina smithiana from Kansas to Texas, Wyoming and California. Its more southern range includes higher elevations, such as the discontinuous areas of the Mogollon Plateau and White Mountains, Arizona; it is also found in Jemez, San Juan, Sangre de Cristo, and Zuni Mountains in New Mexico (Taylor, 2003). It extends across the border into Mexico.

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