Baicaliidae is a

family Family (from ) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). It forms the basis for social order. Ideally, families offer predictabili ...

of small

freshwater snail Freshwater snails are gastropod mollusks that 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 t ...

s with a

gill A gill () is a respiration organ, respiratory organ that many aquatic ecosystem, aquatic organisms use to extract dissolved oxygen from water and to excrete carbon dioxide. The gills of some species, such as hermit crabs, have adapted to allow r ...

and an operculum, aquatic

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

mollusk Mollusca is a phylum of protostomic invertebrate animals, whose members are known as molluscs or mollusks (). Around 76,000 extant species of molluscs are recognized, making it the second-largest animal phylum after Arthropoda. The ...

s in the superfamily

Truncatelloidea Truncatelloidea is a family (biology), superfamily of snails, gastropod mollusc, mollusks in the clade Caenogastropoda.Bouchet, P. (2013). ''Truncatelloidea''. Retrieved through: World Register of Marine Species at http://www.marinespecies.org/a ...

MolluscaBase eds. (2025). MolluscaBase. Baicaliidae P. Fischer, 1885. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=1650950 on 2025-01-22

Description

(Original description in French) The foot is simple.The central tooth of the

radula The radula (; : radulae or radulas) is an anatomical structure used by mollusks for feeding, sometimes compared to a tongue. It is a minutely toothed, chitinous ribbon, which is typically used for scraping or cutting food before the food enters ...

lacks basal denticulations. The penis is non-bifid. The operculum is corneous and spiral (type genus: ''Baicalia'').

Genera

* '' Baicalia'' Martens, 1876 * ''Dybowskia'' Dall, 1877: synonym of '' Teratobaikalia'' Lindholm, 1909 * '' Godlewskia'' Crosse & P. Fischer, 1879 * '' Korotnewia'' Kozhov, 1936 * '' Liobaicalia'' Martens, 1876, synonymised with: * '' Maackia'' Clessin, 1880,Fazalova V., Nevado B., Peretolchina T., Petunina J. & Sherbakov D. (2010). "When environmental changes do not cause geographic separation of fauna: differential responses of Baikalian invertebrates". ''

BMC Evolutionary Biology ''BMC Ecology and Evolution'' (since January 2021), previously ''BMC Evolutionary Biology'' (2001–2020), is a peer-reviewed open access scientific journal covering all fields of evolutionary biology, including phylogenetics and palaeontology ...

'' 10: 320. . synoynmised with: * '' Parabaikalia'' Lindholm, 1909 * '' Pseudobaikalia'' Lindholm, 1909, synonymised with: * '' Pyrgobaicalia'' Starobogatov, 1972 * '' Teratobaikalia'' Lindholm, 1909, synonymised with:

References

External links

* {{Taxonbar, from=Q20051696 Truncatelloidea Gastropod families