''Sierraia'' is a

genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus com ...

freshwater snail Freshwater snails are gastropod mollusks which live in fresh water. There are many different families. They are found throughout the world in various habitats, ranging from ephemeral pools to the largest lakes, and from small seeps and springs ...

s with an operculum, aquatic

prosobranch Prosobranchia was a large taxonomic subclass of sea snails, land snails and freshwater snails. This taxon of gastropods dates back to the 1920s. It has however been proven to be polyphyletic (consisting of more than one lineage of descent). Gene ...

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 Mollusca is the second-largest phylum of invertebrate animals after the Arthropoda, the members of which are known as molluscs or mollusks (). Around 85,000 extant species of molluscs are recognized. The number of fossil species is e ...

s in the family

Bithyniidae Bithyniidae is a family of small freshwater snails with an operculum, aquatic gastropod molluscs in the clade Littorinimorpha.Bouchet, P.; Gofas, S. (2015). Bithyniidae Gray, 1857. In: MolluscaBase (2015). Accessed through: World Register of Ma ...

Species

Species in the genus ''Sierraia'' include: * '' Sierraia expansilabrum'' Brown, 1988 - vulnerable, from Sierra Leone * ''

Sierraia leonensis ''Sierraia'' is a genus of freshwater snails with an operculum, aquatic prosobranch gastropod mollusks in the family Bithyniidae. Species Species in the genus ''Sierraia'' include: * '' Sierraia expansilabrum'' Brown, 1988 - vulnerable, from ...

'' Connolly, 1929 - vulnerable, from Sierra Leone * ''

Sierraia outambensis ''Sierraia'' is a genus of freshwater snails with an operculum, aquatic prosobranch gastropod mollusks in the family Bithyniidae. Species Species in the genus ''Sierraia'' include: * '' Sierraia expansilabrum'' Brown, 1988 - vulnerable, from ...

'' Brown, 1988 - critically endangered, from Sierra Leone * ''

Sierraia whitei ''Sierraia'' is a genus of freshwater snails with an operculum, aquatic prosobranch gastropod mollusks in the family Bithyniidae. Species Species in the genus ''Sierraia'' include: * '' Sierraia expansilabrum'' Brown, 1988 - vulnerable, from ...

'' Brown, 1988 - least concern, from Sierra Leone

Distribution

This genus occurs in

Sierra Leone Sierra Leone,)]. officially the Republic of Sierra Leone, is a country on the southwest coast of West Africa. It is bordered by Liberia to the southeast and Guinea surrounds the northern half of the nation. Covering a total area of , Sierra ...

References

Bithyniidae {{Bithyniidae-stub