Fumonelix jonesiana (syn. Mesodon jonesianus) is a species of land snail in the family Polygyridae. Its common names are Jones' middle-toothed land snail and big-tooth covert.Fumonelix jonesiana. Integrated Taxonomic Information System (ITIS).Big-tooth covert snail (Fumonelix jonesiana). Species Profile. US Fish and Wildlife Service. It is native to North Carolina and Tennessee in the United States, where it occurs in Great Smoky Mountains National Park.
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