''Pachnodus velutinus'' was a species of air-breathing

land snail A land snail is any of the numerous species of snail that live on land, as opposed to the sea snails and freshwater snails. ''Land snail'' is the common name for terrestrial gastropod mollusks that have shells (those without shells are known as ...

, a terrestrial

pulmonate Pulmonata or pulmonates, is an informal group (previously an order, and before that a subclass) of snails and slugs characterized by the ability to breathe air, by virtue of having a pallial lung instead of a gill, or gills. The group includ ...

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

mollusk in the family Cerastidae. This species was endemic to the Seychelles. It is now

extinct Extinction is the termination of a kind of organism or of a group of kinds (taxon), usually a species. The moment of extinction is generally considered to be the death of the last individual of the species, although the capacity to breed and ...

. Hybridisation with ''

Pachnodus niger ''Pachnodus'' is a genus of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Cerastidae.MolluscaBase eds. (2020). MolluscaBase. Pachnodus E. von Martens, 1860. Accessed throughWorld Register of Marine Specieso ...

'' caused the extinction. Hybrids '' Pachnodus niger × velutinus'' still exist.

References

Cerastidae Extinct gastropods Gastropods described in 1841 Taxonomy articles created by Polbot {{Cerastidae-stub