''Caspia'' is a

genus Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In bino ...

of marine snails, brackish water snails and

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, an

aquatic Aquatic means relating to water; living in or near water or taking place in water; does not include groundwater, as "aquatic" implies an environment where plants and animals live. Aquatic(s) may also refer to: * Aquatic animal, either vertebrate ...

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 ...

in the family

Hydrobiidae Hydrobiidae, commonly known as mud snails, is a large cosmopolitan family of very small freshwater and brackish water snails with an operculum, in the order Littorinimorpha.MolluscaBase eds. (2024). MolluscaBase. Hydrobiidae W. Stimpson, 1865. ...

. ''Caspia'' is the type genus of the Caspiidae, that is a synonym of Pyrgulinae.

Species

Species within the genus ''Caspia'' include: * ''

Caspia baerii ''Caspia'' is a genus of marine snails, brackish water snails and freshwater snails with a gill and an operculum, an aquatic gastropod mollusk in the family Hydrobiidae. ''Caspia'' is the type genus of the Caspiidae, that is a synonym of Pyrgul ...

'' Clessin & W. Dybowski in W. Dybowski, 1888 - type species, marineKantor Yu I., Vinarski M. V., Schileyko A. A. & Sysoev A. V. (published online on March 2, 2010). "Catalogue of the continental mollusks of Russia and adjacent territories"
Version 2.3.1
/ref> *''

Caspia brotzkajae ''Caspia'' is a genus of marine snails, brackish water snails and freshwater snails with a gill and an operculum, an aquatic gastropod mollusk in the family Hydrobiidae. ''Caspia'' is the type genus of the Caspiidae, that is a synonym of Pyrgu ...

'' Starobogatov in Anistratenko & Prisjazhnjuk, 1992 - marine *''

Caspia gaillardi ''Caspia'' is a genus of marine snails, brackish water snails and freshwater snails with a gill and an operculum, an aquatic gastropod mollusk in the family Hydrobiidae. ''Caspia'' is the type genus of the Caspiidae, that is a synonym of Pyrgu ...

'' (Tadjalli-Pour, 1977) - marine *''

Caspia gmelinii ''Caspia'' is a genus of marine snails, brackish water snails and freshwater snails with a gill and an operculum, an aquatic gastropod mollusk in the family Hydrobiidae. ''Caspia'' is the type genus of the Caspiidae, that is a synonym of Pyrgu ...

Clessin Stefan Clessin (13 November 1833, in Würzburg – 21 December 1911, in Regensburg) was a German malacologist. He served as a military officer, and from 1862 worked for the Bavarian railways. He was an editor of the ''Malakozoologische Blätter'' ...

& W. Dybowski in W. Dybowski, 1888 - marine *''

Caspia knipowitchi ''Caspia'' is a genus of marine snails, brackish water snails and freshwater snails with a gill and an operculum, an aquatic gastropod mollusk in the family Hydrobiidae. ''Caspia'' is the type genus of the Caspiidae, that is a synonym of Pyrgu ...

'' Makarov, 1938 - marine and brackish *''

Caspia logvinenkoi ''Caspia'' is a genus of marine snails, brackish water snails and freshwater snails with a gill and an operculum, an aquatic gastropod mollusk in the family Hydrobiidae. ''Caspia'' is the type genus of the Caspiidae, that is a synonym of Pyrgu ...

'' (Golikov & Starobogatov, 1966) - freshwater *''

Caspia makarovi ''Caspia'' is a genus of marine snails, brackish water snails and freshwater snails with a gill and an operculum, an aquatic gastropod mollusk in the family Hydrobiidae. ''Caspia'' is the type genus of the Caspiidae, that is a synonym of Pyrgu ...

'' (Golikov & Starobogatov, 1966) - freshwater and brackish *''

Caspia pallasii ''Caspia'' is a genus of marine snails, brackish water snails and freshwater snails with a gill and an operculum (gastropod), operculum, an aquatic animal, aquatic gastropod mollusk in the family Hydrobiidae. ''Caspia'' is the type genus of the ...

'' Clessin & W. Dybowski, 1887 *''

Caspia stanislavi ''Caspia'' is a genus of marine snails, brackish water snails and freshwater snails with a gill and an operculum, an aquatic gastropod mollusk in the family Hydrobiidae. ''Caspia'' is the type genus of the Caspiidae, that is a synonym of Pyrgu ...

'' Alexenko & Starobogatov, 1987 - freshwater and brackish *''

Caspia valkanovi ''Caspia'' is a genus of marine snails, brackish water snails and freshwater snails with a gill and an operculum, an aquatic gastropod mollusk in the family Hydrobiidae. ''Caspia'' is the type genus of the Caspiidae, that is a synonym of Pyrgu ...

'' (Golikov & Starobogatov, 1966)WoRMS (2011). ''Caspia valkanovi'' (Golikov & Starobogatov, 1966). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=576361 on 2011-07-14 ;Species brought into synonymy: *''Caspia issykkulensis''

, 1894: synonym of '' Pseudocaspia issykkulensis'' (

, 1894)

References

Hydrobiidae {{Hydrobiidae-stub