Gonyostomus insularis is a species of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Odontostomidae.MolluscaBase eds. (2025). MolluscaBase. Gonyostomus insularis Leme, 1974. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=1448735 on 2025-08-19
This species is endemic to Brazil.
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