Ancylus Explained

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.^[1]

The genus is known throughout the Cenozoic.^[2]

Species

Species in the genus Ancylus include:

• Ancylus aduncus A. A. Gould, 1847^[3]
• † Ancylus alutae Jekelius, 1932
• Ancylus ashangiensis Brown, 1965^[4]
• Ancylus benoitianus Bourguignat, 1862
• † Ancylus bourgeoisi Deshayes, 1863
• † Ancylus boyeri Noulet, 1867
• † Ancylus braunii Dunker, 1853
• Ancylus capuloides Jan in Porro, 1838
• † Ancylus cestasensis Peyrot, 1932
• † Ancylus depressus Deshayes, 1824
• † Ancylus dumasi Fontannes, 1884
• † Ancylus elegans J. de C. Sowerby, 1826
• Ancylus expansilabris Clessin, 1881
• Ancylus fluviatilis Müller, 1774 - the type species^[3]
• † Ancylus hungaricus Brusina, 1902
• Ancylus lapicidus Hubendick, 1960^[3]
• † Ancylus lyelli Maillard, 1892
• † Ancylus moravicus Rzehak, 1893
• † Ancylus ninghaiensis Youluo, 1978
• † Ancylus parmophorus de Stefani, 1880
• Ancylus pileolus
• Ancylus recurvus Martens, 1873
• Ancylus regularis Brown, 1973^[5]
• Ancylus rupicola Boubée, 1832
• † Ancylus saucatsensis Peyrot, 1932 (?)
• Ancylus scalariformis Stankovic & Radoman, 1953^[3]
• † Ancylus serbicus Brusina, 1893
• Ancylus striatus Quoy & Gaimard, 1834^[3]
• Ancylus subcircularis Clessin, 1880
• † Ancylus subcostatus Benoist, 1873
• Ancylus tapirulus Polinski, 1929^[3]

Synonyms:

• † Ancylus croaticus Brusina, 1902: synonym of † Acroloxus croaticus (Brusina, 1902)
• † Ancylus decussatus Reuss in Reuss & Meyer, 1849: synonym of †Acroloxus decussatus (Reuss in Reuss & Meyer, 1849)
• † Ancylus deperditolacustris Gottschick, 1911: synonym of † Acroloxus deperditolacustris (Gottschick, 1911)
• † Ancylus deperditus (Desmarest, 1814): synonym of † Ferrissia deperdita (Desmarest, 1814)
• Ancylus drouetianus Bourguignat, 1862: synonym of Williamia gussoni (Costa O. G., 1829)
• Ancylus fuscus C. B. Adams, 1840: synonym of Laevapex fuscus (C. B. Adams, 1840)
• Ancylus gibbosus Bourguignat, 1862: synonym of Williamia gussoni (Costa O. G., 1829)
• Ancylus gussonii O. G. Costa, 1829: synonym of Williamia gussonii (O. G. Costa, 1829)
• † Ancylus illyricus Neumayr, 1880: synonym of †Ferrissia illyrica (Neumayr, 1880)
• † Ancylus involutus Pavlović, 1903: synonym of † Acroloxus involutus (Pavlović, 1903)
• † Ancylus michaudi Locard, 1878: synonym of † Acroloxus michaudi (Locard, 1878)
• † Ancylus neumayri Fontannes, 1881: synonym of †Ferrissia neumayri (Fontannes, 1881)
• Ancylus patelloides I. Lea, 1856: synonym of Lanx patelloides (I. Lea, 1856)
• † Ancylus pontileviensis Morgan, 1920: synonym of † Ferrissia pontileviensis (Morgan, 1920)
• † Ancylus wittmanni Schlickum, 1964: synonym of † Ferrissia wittmanni (Schlickum, 1964)

Cladogram

A cladogram based on sequences of mitochondrial 16S ribosomal RNA and cytochrome-c oxidase I (COI) genes showing phylogenic relations of Ancylus by Albrecht et al. (2006):^[6]

Further reading

• 2000. Ancylidae (On-line), Animal Diversity Web. http://animaldiversity.ummz.umich.edu/site/accounts/information/Ancylidae.html

Notes and References

1. Bouchet, P.; Rosenberg, G. (2014). Ancylus O. F. Müller, 1773. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=559196 on 2014-11-15
2. Pek I., Vašíček Z., Roček Z., Hajn V. & Mikuláš R. (1996): Základy zoopaleontologie. Olomouc, 264 pp., .
3. http://www.animalbase.uni-goettingen.de/zooweb/servlet/AnimalBase/list/species?taxongenus=305 "Species in genus Ancylus (n=6)"
4. Van Damme, D. . 2010 . Ancylus ashangiensis . 2010 . e.T1262A3366218 . 10.2305/IUCN.UK.2010-3.RLTS.T1262A3366218.en . 6 July 2024.
5. Van Damme, D. . 2010 . Ancylus regularis . 2010 . e.T1263A3367167 . 10.2305/IUCN.UK.2010-3.RLTS.T1263A3367167.en . 6 July 2024.
6. Albrecht C., Trajanovski S., Kuhn K., Streit B. & Wilke T. (2006). "Rapid evolution of an ancient lake species flock: Freshwater limpets (Gastropoda: Ancylidae) in the Balkan Lake Ohrid". Organisms Diversity & Evolution 6(4): 294-307. .