Acroloxidae, commonly known as river limpets, are a

taxonomic 280px, Generalized scheme of taxonomy Taxonomy is a practice and science concerned with classification or categorization. Typically, there are two parts to it: the development of an underlying scheme of classes (a taxonomy) and the allocation ...

family of very 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 ...

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 ...

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 inclu ...

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 ...

limpet-like

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 with a simple flattened conical

shell Shell may refer to: Architecture and design * Shell (structure), a thin structure ** Concrete shell, a thin shell of concrete, usually with no interior columns or exterior buttresses Science Biology * Seashell, a hard outer layer of a marine ani ...

in the clade Hygrophila. Acroloxidae is the only family within the superfamily Acroloxoidea (according to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005).

Distribution

Worldwide."Family summary for Acroloxidae"

AnimalBase AnimalBase is a project brought to life in 2004 and is maintained by the University of Göttingen, Germany. The goal of the AnimalBase project is to digitize early zoological literature, provide copyright-free open access to zoological works, and p ...

, last change 14-08-2006, accessed 3 August 2010

Anatomy

Pulmones are reduced. Sexual cavity and accessory gills are on the right side.

Genera

Genera within the family Acroloxidae include: * ''

Acroloxus ''Acroloxus'' is a genus of very small, air-breathing, freshwater snails, or more precisely limpets, aquatic pulmonate gastropods in the family Acroloxidae. Species Species in the genus ''Acroloxus'' include: * '' Acroloxus coloradensis'' J. He ...

'' Beck, 1838 - type genus * '' Baicalancylus'' Starobogatov, 1967Kantor Yu I., Vinarski M. V., Schileyko A. A. & Sysoev A. V.(published online on December 22, 2009). "CATALOGUE OF THE CONTINENTAL MOLLUSKS OF RUSSIA AND ADJACENT TERRITORIES"
Version 2.3.
/ref> * '' Frolikhiancylus'' Sitnikova & Starobogatov, 1993 * '' Gerstfeldtiancylus'' Starobogatov, 1989 * '' Pseudancylastrum'' Lindholm, 1909Lindholm (1909). ''Wiss. Ergeb. Exped. Baikal'' 4: 26. ;Synonyms: * ''Costovelletia'' Starobogatov, 1991: synonym of ''Acroloxus'' H. Beck, 1838 (a junior synonym) * ''Dinarancylus'' Starobogatov, 1991: synonym of ''Acroloxus'' H. Beck, 1838 (a junior synonym) * ''Velletia'' J. E. Gray, 1840: synonym of ''Acroloxus'' H. Beck, 1838 (junior objective synonym)

References

This article incorporates public domain text from the reference. * Thiele, J. (1929–1935). Handbuch der systematischen Weichtierkunde. Jena, Gustav Fischer, 1154 pp.

External links

Bouchet, P. & Rocroi, J.-P. (2005). Classification and nomenclator of gastropod families. Malacologia. 47 (1-2): 1-397.
{{Taxonbar, from=Q1936735 Taxa named by Johannes Thiele (zoologist)