Emarginula

Emarginula is a genus of small keyhole limpets, marine gastropod molluscs in the family Fissurellidae.[1]

Emarginula
Emarginula striatula
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Subclass: Vetigastropoda
Clade: Lepetellida
Superfamily: Fissurelloidea
Family: Fissurellidae
Genus: Emarginula
Lamarck, 1801
Type species
Emarginula (Emarginula) conica Lamarck, 1801
Species

See text.

Synonyms
  • Emarginella Pilsbry in Tryon & Pilsbry, 1891
  • Emarginula (Emarginula) Lamarck, 1801· accepted, alternate representation
  • Emarginula (Subzeidora) Iredale, 1924· accepted, alternate representation
  • Emarginulus Montfort, 1810
  • Entomella Cotton, 1945
  • Notamella Cotton, 1957
  • Semperia Crosse, 1867
  • Subzeidora Iredale, 1924

Description

The oval shell is obliquely conical with a backward-pointing recurved apex. There is a deep incision in the anterior margin. A distinct anal fasciole extends upwards from this incision. The surface is latticed, sculptured with radial ribs. There is no septum inside.[2]

Radula

The radula has a dental formula of [many].1.4.1.4.1.[many],[3] with a wide, rectangular, acuspate rachidian tooth.[4] The various genera have a few dozen rows of teeth.[3]

Species

According to the World Register of Marine Species (WoRMS), species within the genus Emarginula include:[1]

The following species are mentioned in other databases : The Indo-Pacific Molluscan Database also mentions the following species with names in current use :[6]

Subgenus Emarginula Lamarck, 1801
  • Emarginula bellula Adams, 1851
  • Emarginula cucullata Adams, 1851
  • Emarginula fissurata Adams, 1851
  • Emarginula harmilensis Sturany, 1903
  • Emarginula plana Schepman, 1908
  • Emarginula scabricostata Adams, 1851
Subgenus Emarginula (Subzeidora) Iredale, 1924
Species brought into synonymy
[1]

References
  1. Bouchet, P.; Gofas, S.; Rosenberg, G. (2012). Emarginula Lamarck, 1801. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=138012 on 2013-01-13
  2. Tryon, George W. Jr. (1879–1898). Manual of Conchology, structural and systematic. Academy of Natural Sciences, Philadelphia. p. 248.
  3. Torr, Claude M. (1914). "Radulæ of some South Australian Gasteropoda". Transactions of the Royal Society of South Australia. 38: 362–368.
  4. Keen, A. Myra (1971-06-01). Sea shells of tropical west America: marine mollusks from Baja California to Peru. ISBN 978-0-8047-0736-7.
  5. "Emarginula striatula". Gastropods.com. Retrieved 12 January 2019.
  6. OBIS : Emarginula
  • "Emarginula". Integrated Taxonomic Information System.
  • Powell A W B, New Zealand Mollusca, William Collins Publishers Ltd, Auckland, New Zealand 1979 ISBN 0-00-216906-1
  • Piani P. (1985). Revisione del genere Emarginula Lamarck, 1801 in Mediterraneo. Lavori, Società Italiana di Malacologia 21: 193-238
  • 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
  • Rolán E., 2005. Malacological Fauna From The Cape Verde Archipelago. Part 1, Polyplacophora and Gastropoda.
  • Spencer, H.; Marshall. B. (2009). All Mollusca except Opisthobranchia. In: Gordon, D. (Ed.) (2009). New Zealand Inventory of Biodiversity. Volume One: Kingdom Animalia. 584 pp
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.