Helenoconcha polyodon

†Helenoconcha polyodon was a species of small air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Charopidae.

Helenoconcha polyodon
Scientific classification
Kingdom:
Animalia
Phylum:
Mollusca
Class:
Gastropoda
(unranked):
clade Heterobranchia

clade Euthyneura
clade Panpulmonata
clade Eupulmonata
clade Stylommatophora

informal group Sigmurethra
Superfamily:
Punctoidea
Family:
Charopidae
Genus:
Helenoconcha
Species:
†H. polyodon
Binomial name
†Helenoconcha polyodon
Sowerby, 1844

This species was endemic to Saint Helena. It is now extinct.

References
  1. Mollusc Specialist Group (1996). "Helenoconcha polyodon". IUCN Red List of Threatened Species. 1996: e.T9767A13014801. doi:10.2305/IUCN.UK.1996.RLTS.T9767A13014801.en. Retrieved 14 November 2021.


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