Ancylini is a

tribe The term tribe is used in many different contexts to refer to a category of human social group. The predominant worldwide use of the term in English is in the discipline of anthropology. The definition is contested, in part due to conflict ...

of small, freshwater, air-breathing

limpet Limpets are a group of aquatic snails with a conical gastropod shell, shell shape (patelliform) and a strong, muscular foot. This general category of conical shell is known as "patelliform" (dish-shaped). Existing within the class Gastropoda, ...

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 ...

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 family

Planorbidae Planorbidae, common name the ramshorn snails or ram's horn snails, is a family (biology), family of air-breathing freshwater snails, Aquatic animal, aquatic pulmonate gastropod Mollusca, molluscs. Unlike most molluscs, the blood of ram's horn sn ...

, the ram's horn snails and their allies. This tribe used to be treated as a family; the current taxonomic placement within Planorbidae is according to the

taxonomy of the Gastropoda (Bouchet & Rocroi, 2005) The taxonomy of the Gastropoda as it was revised in 2005 by Philippe Bouchet and Jean-Pierre Rocroi is a system for the scientific classification of gastropod mollusks (Gastropods are a taxonomic class of animals which consists of snails and sl ...

Anatomy

These animals have a pallial lung, as do all

snails, but they also have a false gill or "

pseudobranch The pseudobranch, also pseudobranchia, is the reduced first gill arch of a fish (on the inner surface of the opercle, near the junction of the preopercle) as well as a reduced "false" gill in some gastropods. In teleost fish, the pseudobranchs are ...

" which can serve perfectly well as 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 ...

in situations where the limpet is unable to reach the surface for air, as is often the case.

Genera

Genera in the tribe Ancylini include: * ''

Ancylus ''Ancylus'' is a genus of very small, freshwater, air-breathing limpets. They are aquatic pulmonate gastropod mollusks in the tribe Ancylini within the family Planorbidae, the ram's horn snails and their allies.Bouchet, P.; Rosenberg, G. (20 ...

Müller Müller may refer to: Companies * Müller (company), a German multinational dairy company ** Müller Milk & Ingredients, a UK subsidiary of the German company * Müller (store), a German retail chain * GMD Müller, a Swiss aerial lift manufacturi ...

, 1773 -

type genus In biological taxonomy, the type genus (''genus typica'') is the genus which defines a biological family and the root of the family name. Zoological nomenclature According to the International Code of Zoological Nomenclature, "The name-bearin ...

* '' Pseudancylus'' * '' Rhodocephala'' * ''

Ferrissia ''Ferrissia'' is a genus of small, air-breathing freshwater limpets, aquatic gastropod mollusks in the family Planorbidae, the ram's horn snails and their allies. Species Species within the genus ''Ferrissia'' include: * '' Ferrissia baconi'' ...

Walker Walker or The Walker may refer to: People *Walker (given name) *Walker (surname) *Walker (Brazilian footballer) (born 1982), Brazilian footballer Places In the United States *Walker, Arizona, in Yavapai County *Walker, Mono County, California * ...

, 1903 * ''

Rhodacmea ''Rhodacmea'' is a genus of small freshwater snails or limpets, aquatic animal, aquatic gastropod mollusks in the family (biology), family Planorbidae, the ram's horn snails and their allies.Ó Foighil D., Li J., Lee T., Johnson P., Evans R. & J ...

, 1917 * '' Sineancylus'' Gutiérrez Gregoric, 2014 * ''

Anisancylus ''Anisancylus'' is a genus of small, freshwater, air-breathing limpets, aquatic pulmonate gastropod molluscs in the family Planorbidae, the ram's horn snails and their allies. Anatomy These animals have a pallial lung, as do all pulmonate snai ...

Pilsbry Henry Augustus Pilsbry (7 December 1862 – 26 October 1957) was an American biologist, malacologist and carcinologist, among other areas of study. He was a dominant presence in many fields of invertebrate taxonomy for the better part of a cent ...

& Vanatta, 1924 * ''

Burnupia ''Burnupia'' is a genus of small freshwater snails or limpets, aquatic gastropod mollusks. It was formerly placed in the family Planorbidae, but according to the molecular markers ( COI, 18S rRNA), it is in a different clade than the genera of t ...

, 1912 * '' Gundlachia'' Pfeiffer, 1849 * '' Hebetancylus''

, 1914 * '' Laevapex''

, 1903 * ''

Stimulator Stimulator may refer to: * something that provides stimulation Medicine *Spinal cord stimulator, an implantable neuromodulation device *Sacral nerve stimulator, for bladder and/or bowel control **Sacral anterior root stimulator *Thalamic stimula ...

'' * '' Uncancylus''

, 1913

References

External links

Three individuals of ''Laevapex fuscus''
hitchhiking on a water bug, which can fly between ponds {{Taxonbar, from=Q17279307 Planorbidae Taxa named by Constantine Samuel Rafinesque Protostome tribes