''Planogyra clappi'' is a species of

gastropods Gastropods (), commonly known as slugs and snails, belong to a large taxonomic class of invertebrates within the phylum Mollusca called Gastropoda (). This class comprises snails and slugs from saltwater, freshwater, and from the land. Ther ...

belonging to the family

Valloniidae Valloniidae is a taxonomic family of small and minute, air-breathing land snails, terrestrial pulmonate gastropod mollusks in the superfamily Pupilloidea.MolluscaBase eds. (2020). MolluscaBase. Valloniidae Morse, 1864. Accessed through: World ...

. The species is found in Northern America.

References

Valloniidae Gastropods described in 1898 {{Valloniidae-stub