Uncancylus foncki

Uncancylus foncki is a species of small, freshwater, air-breathing limpet, an aquatic pulmonate gastropod mollusc in the family Planorbidae, the ram's horn snails and their allies.[1]

Uncancylus foncki
Scientific classification
Kingdom:
Animalia
Phylum:
Mollusca
Class:
Gastropoda
(unranked):
clade Heterobranchia
clade Euthyneura
clade Panpulmonata
clade Hygrophila
Superfamily:
Planorboidea
Family:
Planorbidae
Subfamily:
Planorbinae
Tribe:
Ancylini
Genus:
Uncancylus
Species:
U. foncki
Binomial name
Uncancylus foncki
(Philippi, 1866)

Taxonomic notes

Some authors consider U. foncki a synonym of U. concentricus due to the similarity of their shell shapes.[2]

Distribution

U. foncki is endemic to Chile, where it occurs in lake Llanquihue and the Maullín river, which originates as the outflow of the lake, in the Llanquihue province. The type locality of the species is lake Llanquihue.

U. foncki is known only from museum specimens. Attempts to locate the species in its type locality and the surrounding areas, so as to confirm its identity, have failed.[2]

Description

U. foncki has a high, wide shell with an elliptical aperture. The apex is acute but not sharp, as in U. concentricus, located slightly to the right of the midline, dorsally flattened and bent to the right but not reaching the edge of the shell. The protoconch exhibits irregularly arranged tenuous punctuations. The teleoconch exhibits fine growth lines, while radial lines and periostracal hair are absent.[2]

See also

References
  1. Roskov Y.; Kunze T.; Orrell T.; Abucay L.; Paglinawan L.; Culham A.; Bailly N.; Kirk P.; Bourgoin T.; Baillargeon G.; Decock W.; De Wever A.; Didžiulis V., eds. (2014). "Uncancylus foncki Philippi, 1866". Species 2000 & ITIS Catalogue of Life, 2014 Annual Checklist. Species 2000: Naturalis, Leiden, the Netherlands. Retrieved 16 June 2014.
  2. dos Santos; S. B. (2003). "Estado atual do conhecimento dos ancilídeos na América do Sul (Mollusca: Gastropoda: Pulmonata: Basommatophora)" [Current state of knowledge of ancylids in South America (Mollusca: Gastropoda: Pulmonata: Basommatophora)] (PDF). Revista de Biología Tropical (in Portuguese). 51 (3): 191–223. Retrieved 16 June 2014.
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