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Emarginulinae

The subfamily Emarginulinae, common name keyhole limpets and slit limpets, is a taxonomic subfamily of limpet-like sea snails, marine gastropod molluscs in the family Fissurellidae, the keyhole limpets and slit limpets.

The subfamily consists of the following tribes:

  • Tribe Emarginulini <small>Children, 1834</small> - synonyms: Rimulidae, <small>Anton, 1838</small>; Zeidoridae <small>Naef, 1913</small>; Hemitominae <small>Kuroda, Habe & Oyama, 1971</small>; Clypidinidae <small>Golikov & Starobogatov, 1989</small>
  • Tribe Diodorini <small>Odhner, 1932</small>: this tribe has been raised to the rank of subfamily Diodorinae <small>Odhner, 1932</small>
  • Tribe Fissurellideini <small>Pilsbry, 1890</small>
  • Tribe Scutini<small> Christiaens, 1973</small>

Of the subfamilies in Fissurellidae, the subfamily Emarginulinae is the oldest: its earliest known species date back to the Mesozoic.

The various tribes belong to this subfamily because of the unifying features in their radula. Several tribes were formerlysynonym of subfamilies, because of the differences in their shell. The Emargulini have a caplike shell with a slit in the margin but without an apical opening (foramen). The Scutini have a flat shield-shaped shell with a vague indentation at the back. The other tribes have a caplike shell with a round, oval or triangular apical opening.

The species of this subfamily can be found attached to rocks or coral. They are Herbivores.

Genera

Taxa inquirenda:
  • Clypidella <small>Swainson, 1840</small>
  • Rimulanax <small>Iredale, 1924</small> (possible synonym of Puncturella)

Synonyms

  • Aviscutum <small>Iredale, 1940</small>synonym of Scutus <small>Montfort, 1810</small>
  • Entomella <small>Cotton, 1945</small>synonym of Emarginula <small>Lamarck, 1801</small> (invalid: junior homonym of Entomella <small>Cossmann, 1888</small>; Notomella is a replacement name)
  • † Loxotoma <small>P. Fischer, 1885</small> synonym of † Palaeoloxotoma <small>Hansen, 2019</small> (invalid: junior homonym of Loxotoma <small>Zeller, 1854</small> [Lepidoptera]; Palaeoloxotoma is a replacement name)
  • Nannoscutum <small>Iredale, 1937</small>synonym of Scutus Montfort, 1810
  • Notomella <small>Cotton, 1957</small>synonym of Emarginula <small>Lamarck, 1801</small>
  • Parmophoridea <small>Wenz, 1938</small>synonym of Parmaphorella <small>Strebel, 1907</small> (unnecessary replacement name)
  • Parmophorus <small>Blainville, 1817</small>synonym of Scutus <small>Montfort, 1810</small> (unnecessary substitute name for Scutus)
  • Plagiorhytis <small>P. Fischer, 1885</small>synonym of Montfortula <small>Iredale, 1915</small> (Invalid: junior homonym of Plagiorhytis <small>Chaudoir, 1848</small>)
  • Rimularia <small>Bronn, 1838</small>synonym of Rimula <small>Defrance, 1827</small> (unjustified emendation of Rimula <small>Defrance, 1827</small>)
  • Scutum <small>P. Fischer, 1885</small>synonym of Scutus <small>Montfort, 1810</small> (invalid: unjustified emendation of Scutus)
  • Semperia <small>Crosse, 1867</small>synonym of Emarginula <small>Lamarck, 1801</small>
  • Subzeidora <small>Iredale, 1924</small>synonym of Emarginula (Subzeidora) <small>Iredale, 1924</small> represented as Emarginula <small>Lamarck, 1801</small>
  • Tugalia <small>Gray, 1857</small>synonym of Tugali <small>Gray, 1843</small>
  • Vacerra <small>Iredale, 1924</small>synonym of Vacerrena <small>Iredale, 1958</small> (invalid: junior homonym of Vacerra <small>Godman, 1900</small> [Lepidoptera];Vacerrena is a replacement name)
  • Variegemarginula <small>McLean, 2011</small>synonym of Montfortula <small>Iredale, 1915</small>

References

  • Children J.G. (1834). [Mollusca]. pp.&nbsp;88–118, in: Synopsis of the contents of the British Museum, ed. 28: 88–118. [Authorship attributed to Children after G. Steiner & A.R. Kabat, 2001, Zoosystema, 23(3): 454-45]
  • Bouchet P., Rocroi J.P., Hausdorf B., Kaim A., Kano Y., Nützel A., Parkhaev P., Schrödl M. & Strong E.E. (2017). Revised classification, nomenclator and typification of gastropod and monoplacophoran families. Malacologia. 61(1–2): 1-526

External links