Clio (gastropod)

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Clio
Scientific classification
Kingdom:
Animalia
Phylum:
Mollusca
Class:
Gastropoda
(unranked):
clade Heterobranchia
clade Euthyneura
clade Euopisthobranchia
clade Thecosomata
Superfamily:
Cavolinioidea
Family:
Cliidae
Genus:
Clio

Linnaeus, 1767
Type species
Clio pyramidata Linnaeus, 1767
Synonyms
  • Cleodora Peron & Lesueur, 1810
  • Clio (Balantium) Children, 1823
  • Clio (Bellardiclio) A.W. Janssen, 2004
  • Clio (Clio) Linnaeus, 1767
  • Euclio Bonnevie, 1912

The genus Clio is a taxonomic group of small floating sea snails, pelagic marine opisthobranch gastropod mollusks, the sole genus belonging to the family Cliidae[1]

All species in this genus are characterised by a bilaterally symmetric, straight or adapically dorso-ventrally slightly curved shell, with an elliptical to triangular transverse section; protoconch clearly separated, globular or elliptical, frequently with a spine at the tip. Subgenera are used for some species (e.g. Clio s.str., Balantium Bellardi, 1872, Bellardiclio Janssen, 2004), but most species cannot yet be assigned to one of these.

Numerous fossil species have been described.

Species[]

Recognised extant species are:

  • (Boas, 1886)
    • Distribution : north Atlantic, bathypelagic species.
  • Dall, 1908
  • van der Spoel, 1978
    • Distribution: central Atlantic (Pleistocene fossil).
  • (Tesch, 1948)
  • J. E. Gray, 1850
    • Distribution : tropical, circumglobal.
  • (Boas, 1886)
    • Distribution: tropical, Indo-Pacific
  • Rampal, 2002
    • Distribution: Red Sea and Gulf of Aden.
  • Clio cuspidata (Bosc, 1802)
    • Distribution : tropical/subtropical, circumglobal.
  • † Rampal, 1996
  • (Tesch, 1904)
  • van der Spoel, Schalk & Bleeker, 1992
    • Distribution: Antarctic.
  • Pelseneer, 1888
  • Clio pyramidata Linnaeus, 1767
    • Distribution : north Atlantic
    • Height : to over 20 mm.

Formae:

      • forma excisa van der Spoel, 1963
      • forma lanceolata Lesueur, 1813 (tropical/subtropical, circumglobal)
      • forma martensi (Pfeiffer, 1880) ??
      • forma sulcata (Pfeffer, 1879)

The true status of these formae has to be evaluated, they might be real formae, subspecies, or even species.

  • (Children, 1823)
    • Distribution : tropical-subtropical, circumglobal (bathypelagic species)**
      • Height: to over 30 mm
  • (Pfeffer, 1879)
Species brought into synonymy
  • Clio australis: synonym of Clione limacina australis (Bruguière, 1792)
  • Clio borealis (Pallas, 1774): synonym of Clione limacina (Phipps, 1774)
  • Clio helicina Phipps, 1774: synonym of Limacina helicina (Phipps, 1774)

References[]

  1. ^ Bouchet, P.; Gofas, S. (2012). Clio. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=137751 on 2012-07-24
  • Vaught, K.C. (1989). A classification of the living Mollusca. American Malacologists: Melbourne, FL (USA). ISBN 0-915826-22-4. XII, 195 pp
  • Gofas, S.; Le Renard, J.; Bouchet, P. (2001). Mollusca, in: Costello, M.J. et al. (Ed.) (2001). European register of marine species: a check-list of the marine species in Europe and a bibliography of guides to their identification. Collection Patrimoines Naturels, 50: pp. 180–213
  • Willan, R. (2009). Opisthobranchia (Mollusca). In: Gordon, D. (Ed.) (2009). New Zealand Inventory of Biodiversity. Volume One: Kingdom Animalia. 584 pp
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