Ancylini

Ancylini is a tribe of small, freshwater, air-breathing limpets, aquatic pulmonate gastropod mollusks in the family Planorbidae, 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).

Ancylini
A live individual of Ancylus fluviatilis, anterior end towards the left
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Superorder:	Hygrophila
Family:	Planorbidae
Subfamily:	Ancylinae
Tribe:	Ancylini Rafinesque, 1815[1]
Genera
See text
Synonyms
Ancylidae Pseudancylinae Walker, 1923 (inv.)

Anatomy

These animals have a pallial lung, as do all pulmonate snails, but they also have a false gill or "pseudobranch" which can serve perfectly well as a gill 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:^[2][3][4][5]

• Ancylus Müller, 1773 - type genus
• Pseudancylus
• Rhodocephala
• Ferrissia Walker, 1903
• Rhodacmea Walker, 1917
• Sineancylus Gutiérrez Gregoric, 2014^[6][7]
• Anisancylus Pilsbry & Vanatta, 1924
• Burnupia Walker, 1912
• Gundlachia Pfeiffer, 1849
• Hebetancylus Pilsbry, 1914
• Laevapex Walker, 1903
• Stimulator
• Uncancylus Pilsbry, 1913