Valvata

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Valvata
Drawing: two views of a shell of Valvata cristata, the type species of the genus Valvata
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
(unranked): clade Heterobranchia

informal group Lower Heterobranchia

Superfamily: Valvatoidea
Family: Valvatidae
Genus: Valvata
O.F. Müller, 1773[1]

Valvata is a genus of very small freshwater snails with an operculum, aquatic gastropod mollusks in the family Valvatidae, the valve snails.

Species

The type species for this genus is Valvata cristata O.F. Müller, 1774.

Species in the genus: Valvata O.F. Müller, 1773 include:[2]

(All the European species are included in this list.)

  • Subgenus: Cincinna Hübner, 1810
    • Valvata (Cincinna) biwaensis Preston, 1916 = Biwakovalvata biwaensis
    • † Valvata (Cincinna) chalinei Schlickum & Puisségur, 1978
    • † Valvata (Cincinna) gaudryana Tournouër, 1866
    • Valvata (Cincinna) piscinalis (O.F. Müller, 1774) - European stream valvata
      • Valvata (Cincinna) piscinalis piscinalis (O.F. Müller, 1774) - European stream valvata
      • Valvata (Cincinna) piscinalis alpestris (Küster, 1853)
      • Valvata (Cincinna) piscinalis antiqua (Morris, 1838)
      • Valvata (Cincinna) piscinalis discors Westerlund, 1886
      • Valvata (Cincinna) piscinalis geyeri (Menzel, 1904)
    • † Valvata (Cincinna) piscinaloidis Michaud, 1855
    • Valvata (Cincinna) saulcyi Bourguignat, 1853
    • Valvata (Cincinna) stenotrema Polinski, 1929
    • Valvata (Cincinna) studeri Boeters & Falkner, 1998
    • Cincinna japonica
    • Cincinna kizakikoensis
  • Subgenus: Costovalvata Polinski, 1929
    • Valvata (Costovalvata) hirsutecostata Polinski, 1929
    • Valvata (Costovalvata) klemmi Schütt, 1962
    • Valvata (Costovalvata) rhabdota Sturany, 1894
  • Subgenus: Ohridotropidina Hadžišce 1955
    • Valvata (Ohridotropidina) relicta (Polinski, 1929)
  • Subgenus: ? (not know yet)
    • Valvata montenegrina Gloër & Pešić, 2007
Two views of the type specimen of Valvata oregonensis. Width: 8.0 mm, height: 5.0 mm.
  • Subgenus: ? (not known for wikipedians)
    • Valvata aliena Westerlund, 1877
    • Valvata humeralis Say, 1829 - glossy valvata
    • † Valvata incerta Yen, 1947 - late Cenozoic
    • Valvata lewisi Currier, 1868 - fringed valvata
    • Valvata mergella Westerlund, 1883 - rams-horn valvata
    • † Valvata multicarinata Yen, 1946[3] - from Tertiary
    • Valvata normalis S. Walker
    • † Valvata oregonensis Hanna, 1922[4]
    • † Valvata paula Pierce, 1993[5]
    • Valvata perdepressa Walker, 1906 - purplecap valvata
    • † Valvata procera Russell, 1952 - from Oligocene
    • Valvata simusyuensis
    • Valvata sincera Say, 1824 - mossy valvata
    • † Valvata subumbilicata (Meek & Hayden, 1856) - from Middle Cenozoic (Oligocene)
    • Valvata tricarinata (Say, 1817) - three-ridge valvata, threeridge valvata
    • Valvata utahensis Call, 1884 - Utah roundmouth snail
    • Valvata virens Tryon, 1863 - emerald valvata
    • † Valvata windhauseni Parodiz, 1961[6]
    • Valvata winnebagoensis F. C. Baker, 1928 - flanged valvata

References

  1. ↑ Müller, O. F. 1773. Vermivm terrestrium et fluviatilium, seu animalium infusoriorum, helminthicorum et testaceorum, non marinorum, succincta historia. Voluminis Imi pars Ima., pp. [1-33], 1-135. Havniae & Lipsiae. (Heineck & Faber).
  2. ↑ ITIS report for Valvata. Accessed 19 November 2008.
  3. ↑ Teng-Chien Yen. 1946. Late Tertiary Fresh-Water Mollusks from Southeastern Idaho. Journal of Paleontology, Vol. 20, No. 5 (Sep., 1946), pp. 485-494
  4. ↑ Hanna G. D. (August) 1922. Fossil Freshwater Mollusks from Oregon Contained in the Condon Myuseum of the University of Oregon. Volume I, number 12. page 11-12, plate 3. plate 4, figures 1-4.
  5. ↑ Pierce H. G. 1993. The Nonmarine Mollusks of the Late Oligocene-Early Miocene Cabbage Patch Fauna of Western Montana III. Aquatic Mollusks and Conclusions. Journal of Paleontology, Vol. 67, No. 6 (Nov., 1993), pp. 980-993.
  6. ↑ Parodiz J. J. (July) 1961. Notes on Valvatidae from early Tertiary of South America, with a new species. The Nautilus, volume 75(1). pages 16-19.

External links

  • Valvata in The Paleobiology Database
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