Emarginula

Emarginula

Emarginula striatula
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
(unranked):	clade Vetigastropoda
Superfamily:	Fissurelloidea
Family:	Fissurellidae
Genus:	Emarginula Lamarck, 1801
Type species
Emarginula (Emarginula) conica Lamarck, J.B.P.A. de, 1801
Species
See text.
Synonyms
Emarginella Pilsbry in Tryon & Pilsbry, 1891 Emarginulus Montfort, 1810 Entomella Cotton, 1945 Notamella Cotton, 1957

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

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]

Emarginula adamsiana Sowerby II in Adams & Sowerby II, 1863
Emarginula adriatica Costa O.G., 1829
Emarginula agulhasensis Thiele, 1925
Emarginula alba Watson, 1897
Emarginula amyda Shikama, 1962
Emarginula angusta McLean, 1970
Emarginula bicancellata Montrouzier, 1860
Emarginula bonfittoi Smriglio & Mariottini, 2001
Emarginula camilla Melvill & Standen, 1903
Emarginula candida A. Adams, 1852
Emarginula choristes Dall, 1925
Emarginula christiaensi Piani, 1985
Emarginula clypeus A. Adams, 1852
Emarginula compta Habe, 1953
Emarginula concinna A. Adams, 1852
Emarginula connectens Thiele, 1915
Emarginula connelli Kilburn, 1978
Emarginula convexa Hedley, 1907
Emarginula costulata Deshayes, 1863
Emarginula crassa Sowerby, 1812
Emarginula crassicostata Sowerby II in Adams & Sowerby II, 1863
Emarginula curvamen Iredale, 1925
Emarginula cuvieri Audouin, 1827 (species inquerenda)
Emarginula decorata Deshayes, 1863
Emarginula devota Thiele, 1915
Emarginula dictya McLean, 1970
Emarginula dilecta A. Adams, 1852
Emarginula divae (van Aartsen & Carrozza, 1995)
Emarginula dubia Schepman, 1908
Emarginula fenestrella Deshayes, 1863
Emarginula fissura (Linnaeus, 1758) - slit limpet
Emarginula foveolata Schepman, 1908
- Emarginula foveolata fugitai Habe, 1953
Emarginula fragilis Yokoyama, 1920
Emarginula fulginea A. Adams, 1851
Emarginula gabensis (Gabriel, 1961)
Emarginula gigantea Poppe, 2008
Emarginula hataii Habe, 1953
Emarginula hawaiiensis Dall, 1895
Emarginula hosoyai Habe, 1953
Emarginula huzardii (Payraudeau, 1826)
Emarginula icosisculpta Simone & Cunha, 2014
Emarginula imaizumi Dall, 1926
Emarginula intervecta Locard, 1898
Emarginula japonica Sowerby II in Adams & Sowerby II, 1863
Emarginula kashimaensis Shikama, 1962
Emarginula koon Kilburn, 1978
Emarginula longifissa G.B. Sowerby II, 1866
Emarginula macclurgi Kilburn, 1978
Emarginula maculata A. Adams in A. Adams & Sowerby II, 1863
Emarginula micans A. Adams, 1852
Emarginula multistriata Jeffreys, 1882
Emarginula natalensis Barnard, 1963
Emarginula nigromaculata (Thiele, 1930)
Emarginula nordica Pérez Farfante, 1947 - northern emarginula
Emarginula obovata A. Adams, 1852
Emarginula octaviana Coen, 1939
Emarginula oppressa Barnard, 1963
Emarginula paivana (Crosse, 1867)
Emarginula patula Cotton, 1930
Emarginula paucipunctata Schepman, 1908
Emarginula phrixodes Dall, 1927 - ruffled emarginula
Emarginula phrygium Herbert & Kilburn, 1985
Emarginula puncticulata Adams, 1852
Emarginula punctulum Piani, 1980
Emarginula pustula Thiele in Küster, 1913
Emarginula regia Habe, 1953
Emarginula retecosa A. Adams, 1851
Emarginula rosea Bell, 1824
Emarginula scabriuscula A. Adams, 1852
Emarginula sicula J. E. Gray, 1825 - dagger emarginula
Emarginula sinica Lu, 1986
Emarginula solidula Costa, 1829
Emarginula souverbiana Pilsbry, 1890
Emarginula spinosa Deshayes, 1863
Emarginula striatula Quoy and Gaimard, 1834 - dagger emarginula ^[5]
Emarginula subtilitexta Verco, 1908
Emarginula superba Hedley, 1906
Emarginula suspira Simone & Cunha, 2014
Emarginula tenera Locard, 1892
Emarginula tenuicostata G.B. Sowerby II, 1863
Emarginula teramachii Habe, 1953
Emarginula textilis Gould, 1859 in 1859-61
Emarginula thomasi Crosse, 1864
Emarginula thorektes Kilburn, 1978
Emarginula tosaensis Habe, 1953
Emarginula tuberculosa Libassi, 1859 - tuberculate emarginula
Emarginula undulata Melvill & Standen, 1903
Emarginula velascoensis Shasky, 1961
Emarginula velascoi Rehder, 1980
Emarginula viridicana Herbert & Kilburn, 1985
Emarginula xishaensis Lu, 1986

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

Emarginula curvata Schepman, 1908
Emarginula multisquamosa Schepman, 1908
Emarginula sublaevis Schepman, 1908

Subgenus Emarginula Lamarck, 1801

Emarginula bellula A. Adams, 1851
Emarginula cucullata Adams, 1851
Emarginula fissurata A. Adams, 1851
Emarginula harmilensis Sturany, 1903
Emarginula plana Schepman, 1908
Emarginula scabricostata A. Adams, 1851

Subgenus Emarginula (Subzeidora) Iredale, 1924

Species brought into synonymy: ^[1]

Emarginula altilis Gould, 1859: synonym of Variemarginula punctata (A. Adams, 1852)
Emarginula amitina Iredale, 1925: synonym of Emarginula dilecta A. Adams, 1852
Emarginula angustata Thiele, 1915: synonym of Tugali decussata A. Adams, 1852
Emarginula arabica A. Adams, 1852: synonym of Octomarginula arabica (A. Adams, 1852)
Emarginula arconatii Issel, 1869: synonym of Montfortista panhi (Quoy & Gaimard, 1834)
Emarginula australis Quoy & Gaimard, 1834: synonym of Montfortia subemarginata (Blainville, 1819)
Emarginula bella Gabb, 1865: synonym of Scelidotoma bella (Gabb, 1865)
Emarginula biangulata G. B. Sowerby III, 1901: synonym of Emarginella biangulata (G. B. Sowerby III, 1901)
† Emarginula blainvillii Defrance, 1825: synonym of † Rimula blainvillii (Defrance, 1825)
Emarginula brevirimata Deshayes, 1862: synonym of Montfortula brevirimata (Deshayes, 1862)
Emarginula clathrata A. Adams & Reeve, 1850: synonym of Montfortista panhi (Quoy & Gaimard, 1834)
Emarginula clathrata Pease, 1863: synonym of Emarginula dilecta A. Adams, 1852
Emarginula conica Lamarck, 1801: synonym of Emarginula fissura (Linnaeus, 1758)
Emarginula conica Schumacher, 1817 non Lamarck, 1801: synonym of Emarginula rosea Bell, 1824
Emarginula dentigera Heilprin, 1889: synonym of Hemimarginula dentigera (Heilprin, 1889)
Emarginula elata Locard, 1898: synonym of Emarginula christiaensi Piani, 1985
Emarginula elongata O. G. Costa, 1829: synonym of Emarginula octaviana Coen, 1939
Emarginula eximia A. Adams, 1852: synonym of Emarginella eximia (A. Adams, 1852)
Emarginula flindersi Cotton, 1930: synonym of Emarginula convexa Hedley, 1907
Emarginula fuliginea Kuroda, 1941: synonym of Variemarginula variegata (A. Adams, 1852)
Emarginula guernei Dautzenberg & Fischer, 1896: synonym of Emarginula tuberculosa Libassi, 1859
Emarginula hedleyi Thiele, 1915: synonym of Emarginula candida A. Adams, 1852
Emarginula incisula(sic): synonym of Emarginella incisura (A. Adams, 1852)
Emarginula incisura A. Adams, 1852: synonym of Emarginella incisura (A. Adams, 1852)
Emarginula kimberti Cotton, 1930: synonym of Laeviemarginula kimberti (Cotton, 1930)
Emarginula modesta H. Adams, 1872: synonym of Hemimarginula modesta (H. Adams, 1872)
Emarginula muelleri Forbes & Hanley, 1849: synonym of Emarginula fissura (Linnaeus, 1758)
Emarginula ostheimerae Abbott, 1958: synonym of Octomarginula ostheimerae (Abbott, 1958)
Emarginula panhi Quoy & Gaimard, 1834: synonym of Montfortista panhi (Quoy & Gaimard, 1834)
Emarginula papillosa Risso 1826: synonym of Emarginula huzardii Payraudeau, 1826
Emarginula parmophoidea Quoy & Gaimard, 1834: synonym of Tugali elegans Gray, 1843
Emarginula peasei Thiele, 1915: synonym of Emarginula dilecta A. Adams, 1852
Emarginula picta Dunker, 1860: synonym of Montfortula picta (Dunker, 1860)
Emarginula pileata Gould, 1859: synonym of Variemarginula punctata (A. Adams, 1852)
Emarginula pileum Heilprin, 1889: synonym of Hemimarginula pileum (Heilprin, 1889)
Emarginula planulata A. Adams, 1852: synonym of Emarginella planulata (A. Adams, 1852)
Emarginula polygonalis A. Adams, 1852: synonym of Hemitoma polygonalis (A. Adams, 1852)
Emarginula pulchreclathrata Tomlin, 1932: synonym of Emarginula agulhasensis Thiele, 1925
Emarginula pumila A. Adams, 1852: synonym of Hemimarginula pumila (A. Adams, 1852)
Emarginula punctata A. Adams, 1852: synonym of Variemarginula punctata (A. Adams, 1852)
Emarginula reticulata Sowerby, 1813: synonym of Emarginula fissura (Linnaeus, 1758)
Emarginula rugosa Quoy & Gaimard, 1834: synonym of Montfortula rugosa (Quoy & Gaimard, 1834)
Emarginula scutellata Deshayes, 1863: synonym of Octomarginula scutellata (Deshayes, 1863)
Emarginula sibogae Schepman, 1908: synonym of Emarginella sibogae (Schepman, 1908)
Emarginula simpla Christiaens, 1987: synonym of Hemimarginula simpla (Christiaens, 1987)
Emarginula stellata A. Adams, 1852: synonym of Montfortula rugosa (Quoy & Gaimard, 1834)
Emarginula subclathrata Pilsbry, 1890: synonym of Emarginula dilecta A. Adams, 1852
Emarginula subemarginata Blainville, 1819: synonym of Montfortia subemarginata (Blainville, 1819)
Emarginula subrugosa Thiele, 1916: synonym of Hemimarginula subrugosa (Thiele, 1916)
Emarginula sulcifera A. Adams, 1852: synonym of Montfortulana sulcifera (A. Adams, 1852)
Emarginula tricarinata Pilsbry, 1890: synonym of Montfortista panhi (Quoy & Gaimard, 1834)
Emarginula tricostata G.B. Sowerby I, 1823: synonym of Hemitoma octoradiata (Gmelin, 1791)
Emarginula vadososinuata Yokoyama, 1922: synonym of Tugalina vadososinuata (Yokoyama, 1922)
Emarginula vadum Barnard, 1963: synonym of Emarginula undulata Melvill & Standen, 1903
Emarginula variegata A. Adams, 1852: synonym of Variemarginula variegata (A. Adams, 1852)

References

↑ 1.0 1.1 1.2 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
↑ Tryon, George W. Jr. (1879–1898). Manual of Conchology, structural and systematic. Academy of Natural Sciences, Philadelphia. p. 248.
↑ 3.0 3.1 Torr, C.M. (1914). "Radulæ of some South Australian Gasteropoda". Transactions of the Royal Society of South Australia. 38: 362–368.
↑ 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.
↑ Gastropods.com : Emarginula striatula
↑ 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

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