Emarginula
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| Emarginula | |
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| Emarginula striatula | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| (unranked): | clade Vetigastropoda |
| Superfamily: | Fissurelloidea |
| Family: | Fissurellidae |
| Genus: | Emarginula Lamarck, 1801 |
| Species | |
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See text. |
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| Synonyms | |
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Emarginula is a genus of small keyhole limpets, marine gastropod molluscs in the family Fissurellidae.
Contents |
[edit] 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.[1]
[edit] Radula
The radula has a dental formula of [many].1.4.1.4.1.[many],[2] with a wide, rectangular, acuspate rachidian tooth.[3] The various genera have a few dozen rows of teeth.[4]
[edit] Species
According to the World Register of Marine Species (WoRMS), species within the genus Emarginula include:[5]
- Emarginula adriatica Costa O.G., 1829
- Emarginula arabica A. Adams, 1851
- Emarginula arconatii Issel, 1869
- Emarginula bonfittoi Smriglio & Mariottini, 2001
- Emarginula christiaensi Piani, 1985
- Emarginula costulata Deshayes, 1863
- Emarginula crassa Sowerby, 1812
- Emarginula cuvieri Audouin, 1827
- Emarginula decorata Deshayes, 1863
- Emarginula dentigera Heilprin, 1889 - toothed emarginula
- Emarginula divae (van Aartsen & Carrozza, 1995)
- Emarginula fissura (Linnaeus, 1758) - slit limpet
- Emarginula foveolata
- Emarginula foveolata fugitai Habe, 1953
- Emarginula gigantea Poppe, 2008
- Emarginula huzardii (Payraudeau, 1826)
- Emarginula multistriata Jeffreys, 1882
- Emarginula nordica Pérez Farfante, 1947 - northern emarginula
- Emarginula octaviana Coen, 1939
- Emarginula paivana (Crosse, 1867)
- Emarginula papillosa Risso 1826
- Emarginula peasei Thiele, 1915
- Emarginula phrixodes Dall, 1927 - ruffled emarginula
- Emarginula pumila (A. Adams, 1852) - pygmy emarginula
- Emarginula punctulum Piani, 1980
- Emarginula pustula Thiele in Küster, 1913
- Emarginula retecosa A. Adams, 1851
- Emarginula rosea Bell , 1824
- Emarginula rugosa Quoy & Gailard, 1834
- Emarginula sicula J. E. Gray, 1825 - dagger emarginula
- Emarginula solidula Costa, 1829
- Emarginula spinosa Deshayes, 1863
- Emarginula tenera Locard, 1892
- Emarginula tenuicostata G.B. Sowerby II, 1863
- Emarginula thomasi Crosse, 1864
- Emarginula tuberculosa Libassi, 1859 - tuberculate emarginula
- Emarginula variegata A. Adams, 1852
- Emarginula velascoensis Shasky, 1961
The following species is mentioned in other databases :
- Emarginula striatula Quoy and Gaimard, 1834 - dagger emarginula [6]
The Indo-Pacific Molluscan Database also mentions the following species with names in current use :[7]
- Emarginula adamsiana Sowerby II in Adams & Sowerby II, 1863
- Emarginula amyda Shikama, 1962
- Emarginula choristes Dall, 1925
- Emarginula compta Habe, 1953
- Emarginula concinna A. Adams, 1852
- Emarginula crassicostata Sowerby II in Adams & Sowerby II, 1863
- Emarginula curvata Schepman, 1908
- Emarginula dilecta A. Adams, 1852
- Emarginula dubia Schepman, 1908
- Emarginula fenestrella Deshayes, 1863
- Emarginula fragilis Yokoyama, 1920
- Emarginula fulginea A. Adams, 1851
- Emarginula hataii Habe, 1953
- Emarginula hosoyai Habe, 1953
- Emarginula imaizumi Dall, 1926
- Emarginula japonica Sowerby II in Adams & Sowerby II, 1863
- Emarginula kashimaensis Shikama, 1962
- Emarginula maculata A. Adams in A. Adams & Sowerby II, 1863
- Emarginula multisquamosa Schepman, 1908
- Emarginula paucipunctata Schepman, 1908
- Emarginula punctata A. Adams, 1852
- Emarginula regia Habe, 1953
- Emarginula sublaevis Schepman, 1908
- Emarginula teramachii Habe, 1953
- Emarginula textilis Gould, 1859 in 1859-61
- Emarginula tosaensis Habe, 1953
- Subgenus Emarginula Lamarck, 1801
- Emarginula agulhasensis Thiele, 1925
- Emarginula bellula A. Adams, 1851
- Emarginula bicancellata Montrouzier, 1860
- Emarginula camilla Melvill & Standen, 1903
- Emarginula candida A. Adams, 1852
- Emarginula clathrata Pease, 1862
- Emarginula clypea A. Adams, 1852
- Emarginula connelli Kilburn, 1978
- Emarginula convexa Hedley, 1907
- Emarginula cucullata Adams, 1851
- Emarginula curvamen Iredale, 1925
- Emarginula eximia A. Adams, 1852
- Emarginula fissurata A. Adams, 1851
- Emarginula gabensis (Gabriel, 1961)
- Emarginula harmilensis Sturany, 1903
- Emarginula hawaiiensis Dall, 1895
- Emarginula koon Kilburn, 1978
- Emarginula macclurgi Kilburn, 1978
- Emarginula micans A. Adams, 1852
- Emarginula natalensis Barnard, 1963
- Emarginula nigromaculata (Thiele, 1930)
- Emarginula obovata A. Adams, 1852
- Emarginula oppressa (Barnard, 1963)
- Emarginula patula Cotton, 1930
- Emarginula phrygium Herbert & Kilburn, 1985
- Emarginula plana Schepman, 1908
- Emarginula puncticulata Adams, 1852
- Emarginula scabricostata A. Adams, 1851
- Emarginula scabriuscula A. Adams, 1852
- Emarginula scutellata Deshayes, 1863
- Emarginula subtilitexta Verco, 1908
- Emarginula superba Hedley, 1906
- Emarginula thorektes Kilburn, 1978
- Emarginula undulata Melvill & Standen, 1903
- Emarginula velascoi Rehder, 1980
- Emarginula viridicana Herbert & Kilburn, 1985
- Subgenus Subzeidora Iredale, 1924
- Emarginula connectens Thiele, 1915
- Emarginula devota Thiele, 1915
- Emarginula souverbiana Pilsbry, 1890
[edit] References
- ^ Tryon, George W. Jr. (1879-1898). Manual of Conchology, structural and systematic. Academy of Natural Sciences, Philadelphia. pp. 248.
- ^ Torr, C.M. (1914). "Radulæ of some South Australian Gasteropoda". Transactions of the Royal Society of South Australia. 38: 362–368. http://www.samuseum.sa.gov.au/Journals/TRSSA/TRSSA_V038/TRSSA_V038_p362p368.pdf.
- ^ Keen, Angeline Myra (1971-06-01). Sea shells of tropical west America: marine mollusks from Baja California to Peru. ISBN 9780804707367. http://books.google.ca/books?id=Xj-2-KxUCcYC&pg=PA310.
- ^ Torr, C.M. (1914). "Radulæ of some South Australian Gasteropoda". Transactions of the Royal Society of South Australia. 38: 362–368. http://www.samuseum.sa.gov.au/Journals/TRSSA/TRSSA_V038/TRSSA_V038_p362p368.pdf.
- ^ WoRMS : Emarginula; accessed : 4 October 2010
- ^ Gastropods.com : Emarginula striatula
- ^ OBIS : Emarginula
- "Emarginula". Integrated Taxonomic Information System. http://www.itis.gov/servlet/SingleRpt/SingleRpt?search_topic=TSN&search_value=69598.
- Powell A W B, New Zealand Mollusca, William Collins Publishers Ltd, Auckland, New Zealand 1979 ISBN 0-00-216906-1
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