Choanomphalus maacki

Choanomphalus maacki
an apertural view of the shell of Choanomphalus maacki maacki
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
(unranked): clade Heterobranchia
clade Euthyneura
clade Panpulmonata
clade Hygrophila
Superfamily: Planorboidea
Family: Planorbidae
Subfamily: Planorbinae
Tribe: Planorbini
Genus: Choanomphalus
Species: C. maacki
Binomial name
Choanomphalus maacki
Gerstfeldt, 1859[2]
Synonyms[3]

of C. maacki maacki:

  • Choanomphalus bicarinatus W. Dybowski, 1901[4]
  • Choanomphalus mesospiralis B. Dybowski & Grochmalicki, 1925[5]

of C. maacki andrussowianus:

  • Choanomphalus elatospiralis B. Dybowski & Grochmalicki, 1925
  • Choanomphalus andrussovianus B. Dybowski & Grochmalicki, 1925

of C. maacki elatior:

  • Choanomphalus korotnevi elatior Lindholm, 1909

Choanomphalus maacki is a species of freshwater air-breathing snail, an aquatic pulmonate gastropod mollusk in the family Planorbidae, the ram's horn snails, or planorbids.

Choanomphalus maacki is the type species of the genus Choanomphalus.[3]

Subspecies

  • Choanomphalus maacki maacki Gerstfeldt, 1859[3]
  • Choanomphalus maacki andrussowianus (Lindholm, 1909)[3][6]
  • Choanomphalus maacki elatior Lindholm, 1909[3][6]

However, IUCN Red List 2013 lists these three as synonyms.[1]

Distribution

This species is found in Lake Baikal, Russia.[1] Its natural habitats are freshwater lakes and river mouths.[1]

Description

The width of the shell is 5–6 mm.[7] The height of the shell is 2.5–3.0 mm.[7]

Apical view of the shell.
Umbilical view of the shell.

References

  1. 1 2 3 4 Vinarski M. & Sitnikova T. (2012). "Choanomphalus maacki". In: IUCN 2013. IUCN Red List of Threatened Species. Version 2013.2. <www.iucnredlist.org>. Downloaded on 31 May 2014.
  2. ↑ (in German) Gerstfeldt G. (1859). "Ueber Land- und Süsswasser-Mollusken Sibiriens und Amur-Gebietes". Mémoires des Savants étrangers 9: 507-548.
  3. 1 2 3 4 5 Kantor Yu I., Vinarski M. V., Schileyko A. A. & Sysoev A. V. (published online on March 2, 2010). "Catalogue of the continental mollusks of Russia and adjacent territories". Version 2.3.1.
  4. ↑ (in German) Dybowski W. (1901). "Beschreibung neuer Choanomphalus-Arten". Nachrichtsblatt der Deutschen Malakozoologischen Gesellschaft 33(8): 119–125.
  5. ↑ (in Polish) Dybowski B. & Grochmalicki J. (1925). "Przyczynki doo znajomości mięczaków jeziora Bajkalskiego. (Contributions à la connaissance des Mollusques du lac Baical)". Wladislaviidae nom. fam. Kosmos (Lwow), 50: 819–881.
  6. 1 2 (in German) Lindholm W. A. (1909). "Die Mollusken des Baikal-Sees (Gastropoda et Pelecypoda) systematisch und zoogeographisch bearb". Wissenschaftliche Ergebnisse einer zoologische Expedition nach dem Baikal-See unter Leitung des Prof. Alexis Korotneff i. d. J. 1900–1902, 4. Kiew und Berlin, Fridländer und Sohn: 1–104. page 10, plate 2, fig. 28–30; page 13, plate 2, fig. 25–27.
  7. 1 2 (in French) Bourguignat J. R. (1860). "Monographie du genre Choanomphalus". Revue et Magasin de Zoologie, série 2, 12: 527–531. plate 23.

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