Pomatiopsidae 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, mainly

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, (some also occur in other habitats) that have gills 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 (according to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005). Pomatiopsidae are well known as intermediate hosts of Asian schistosomes.

Distribution

Species in the family Pomatiopsidae occur worldwide. The generic diversity of Pomatiopsinae is particularly high in the

Japanese Archipelago The is an archipelago of list of islands of Japan, 14,125 islands that form the country of Japan. It extends over from the Sea of Okhotsk in the northeast to the East China Sea, East China and Philippine Sea, Philippine seas in the southwest al ...

, where four of the eight genera, including two endemics, are recorded. The subfamily Triculinae radiated as aquatic snails in freshwater habitats in

Southeast Asia Southeast Asia is the geographical United Nations geoscheme for Asia#South-eastern Asia, southeastern region of Asia, consisting of the regions that are situated south of China, east of the Indian subcontinent, and northwest of the Mainland Au ...

Description

The American malacologist William Stimpson first defined this taxon as Pomatiopsinae in 1865. Stimpson W. (1865). "Researches upon the Hydrobiinae and allied forms chiefly made upon materials in the museum of the

Smithsonian Institution The Smithsonian Institution ( ), or simply the Smithsonian, is a group of museums, Education center, education and Research institute, research centers, created by the Federal government of the United States, U.S. government "for the increase a ...

". '' Smithsonian Miscellaneous Collections'' 7'
(201)
1-59
page 4
Stimpson's diagnosis reads as follows:

Subfamilies

The family Pomatiopsidae consists of 2 subfamilies (according to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005) that follows classification by Davis (1979):Davis G. M. (1979). "The origin and evolution of the gastropod family Pomatiopsidae, with emphasis on the Mekong river Triculinae". '' Academy of natural Sciences of Philadelphia'', Monograph 20: 1-120. . * Subfamily Pomatiopsinae Stimpson, 1865 - synonyms: Hemibiinae Heude, 1890; Tomichiinae Wenz, 1938; Coxiellidae Iredale, 1943; Oncomelaniidae Salisbury & Edwards, 1961; Cecininae Starobogatov, 1983 * Subfamily Triculinae Annandale, 1924 ** tribe Triculuni Annandale, 1924 - synonym: Delavayidae Annandale, 1924 ** tribe Jullieniini Davis, 1979 ** tribe Lacunopsini Davis, 1979 ** tribe Pachydrobiini Davis & Kang, 1990Davis G. M. & Kang Z.-B. (1990). "The genus ''Wuconchona'' of China (Gastropoda: Pomatiopsidae: Triculinae): anatomy, systematics, cladistics, and transmission of ''Schistosoma''". '' Proceedings of the Academy of Natural Sciences of Philadelphia'' 142: 119-142. Family-group name Rehderiellinae Brandt, 1974 is also in Pomatiopsidae, but it is not allocated in detail.

Genera

Genera within the family Pomatiopsidae include: * '' Spiripockia'' Simone, 2012 (not allocated to a subfamily) Subfamily Pomatiopsinae * '' Blanfordia'' Adams, 1863 * '' Cecina'' A. Adams, 1861 * '' Coxiella'' E. A. Smith, 1894: belongs in the family Tomichiidae * '' Floridiscrobs'' Pilsbry and McGinty, 1949 * '' Fukuia'' Abbott & Hunter, 1949 * '' Hemibia'' Heude, 1890 (species type: '' Oncomelania hupensis'' Gredler, 1881 * '' Idiopyrgus'' Pilsbry, 1911Malek E. A. (1983). "The South American hydrobioid genus ''Idiopyrgus'' Pilsbry, 1911". '' The Nautilus'' 97(1)
16
20. - synonym: ''Aquidauania'' Davis, 1979: belongs in the family Tomichiidae * '' Oncomelania'' Gredler, 1881 * '' Pomatiopsis'' Tryon, 1862 - the type genus of the family Pomatiopsidae * '' Tomichia'' Benson, 1851:Rosenberg, G. (2010). ''Tomichia'' Benson, 1851. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=405098 on 2011-04-04 belongs in the family Tomichiidae Subfamily Triculinae - there are over 20 genera in Triculinae tribe Triculuni * '' Delavaya'' Heude, 1889 * '' Fenouilia'' Heude, 1889 * '' Lithoglyphopsis'' Thiele, 1928Davis G. M., Wilke T., Zhang Y., Xu X.-J., Qiu C.-P., Spolsky C., Qiu D.-C., Li Y., Xia M.-Y. & Feng Z. (1999). "Snail-''Schistosoma'', ''Paragonimus'' interactions in China: population ecology, genetic diversity, coevolution and emerging diseases". '' Malacologia'' 41(2)
355
377. * '' Tricula'' Benson, 1843 - type genus of the tribe Triculuni tribe Jullieniini * '' Hubendickia'' Brandt, 1968 * '' Hydrorissoia'' Bavay, 1895 * '' Jullienia'' Crosse & P. Fischer, 1876 - type genus of the tribe Jullieniini * '' Karelainia'' Davis, 1979 * '' Kunmingia'' Davis & Kuo in Davis, 1981 * '' Neoprososthenia'' Davis & Kuo in Davis, Kuo, Hoagland, Chen, Yang & Chen, 1984 * '' Pachydrobiella'' Thiele, 1928 - with the only species '' Pachydrobiella brevis'' (Bavay, 1895) * † '' Paraprososthenia'' Annandale, 1919 * '' Saduniella'' Brandt, 1970 - with the only species '' Saduniella planispira'' Brandt, 1970 tribe Lacunopsini * '' Lacunopsis'' Deshayes, 1876 - type genus of the tribe Lacunopsini tribe Pachydrobiini * '' Gammatricula'' Davis & Liu in Davis, Liu & Chen, 1990Wilke T., Davis G. M., Gong X. & Liu H. X. (2000). "''Erhaia'' (Gastropoda: Rissooidea): phylogenetic relationships and the question of ''Paragonimus'' coevolution in Asia". '' American Journal of Tropical Medicine and Hygiene'' 62(4): 453-459
PDF
. * '' Halewisia'' Davis, 1979 - with the only species '' Halewisia expansa'' (Brandt, 1970) * '' Jinghongia'' Davis in Davis & Kang, 1990 * '' Neotricula'' Davis in Davis, Subba Rao & Hoagland, 1986 * '' Pachydrobia'' Crosse & P. Fischer, 1876 - type genus of the tribe Pachydrobiini * '' Robertsiella'' Davis & Greer, 1980 * '' Wuconchona'' Kang, 1983 Rehderiellinae is not allocated to a subfamily * '' Rehderiella'' Brandt, 1974 - type genus of the taxon Rehderiellinae

Ecology

The Pomatiopsidae have various life habits: aquatic, amphibious, littoral,

halophilic A halophile (from the Greek word for 'salt-loving') is an extremophile that thrives in high salt concentrations. In chemical terms, halophile refers to a Lewis acidic species that has some ability to extract halides from other chemical species. ...

, cavernicolous and even terrestrial. Terrestrial taxa occur only on the Japanese Archipelago located in East Asia ('' Blanfordia''). '' Tomichia'' and '' Coxiella'' include several halophilic species occurring on saline lakes. Pomatiopsidae invaded freshwater habitats from marine ones in one or in two independent lineages. They also invaded terrestrial habitats from freshwater habitats in two independent lineages.

References

This article incorporates public domain text from the reference and CC-BY-2.0 from the reference

External links

* Stimpson W. (1865). "Researches upon the Hydrobiinae and allied forms chiefly made upon materials in the museum of the

". '' Smithsonian Miscellaneous Collections'' 7'
(201)
1-59
page 4
* Davis G. M., Chen C.-E., Wu C., Kuang T.-F., Xing X.-G., Li L., Liu W.-J. & Yan Y.-L. (1992). "The Pomatiopsidae of Hunan, China (Gastropoda, Rissoacea)". '' Malacologia'' 34(1-2)
143
342. * * {{Authority control