Emarginula

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

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.

Radula

The radula has a dental formula of any1.4.1.4.1. any with a wide, rectangular, acuspate rachidian tooth.
The various genera have a few dozen rows of teeth.

Species

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

* ''Emarginula adamsiana'' Sowerby in Adams & Sowerby, 1863
* ''Emarginula adriatica'' Costa O.G., 1829
* ''Emarginula agulhasensis'' Thiele, 1925
* ''Emarginula alba'' Watson, 1897
* ''Emarginula amyda'' Shikama, 1962
* ''Emarginula angusta'' McLean, 1970
* ''Emarginula annielangleitae'' Poppe & Tagaro, 2020
* ''Emarginula apolonia'' Pacaud, 2015
* ''Emarginula balicasagensis'' Poppe & Tagaro, 2020
* ''Emarginula bicancellata'' Montrouzier, 1860
* ''Emarginula bonfittoi'' Smriglio & Mariottini, 2001
* '' Emarginula boucheti'' Poppe & Tagaro, 2020
* '' Emarginula camilla'' Melvill & Standen, 1903
* '' Emarginula candida'' Adams, 1852
* '' Emarginula choristes'' Dall, 1925
* '' Emarginula christiaensi'' Piani, 1985
* '' Emarginula circumalbum'' Poppe & Tagaro, 2020
* ''Emarginula clypeus'' Adams, 1852
* '' Emarginula colipanoae'' Poppe & Tagaro, 2020
* '' Emarginula compta'' Habe, 1953
* '' Emarginula concinna'' 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 in Adams & Sowerby, 1863
* '' Emarginula curvamen'' Iredale, 1925
*'' Emarginula cuvieri'' Audouin, 1827 (species inquirenda)
*'' Emarginula decorata'' Deshayes, 1863
* '' Emarginula delonguevilleae'' Poppe & Tagaro, 2020
* '' Emarginula devota'' Thiele, 1915
* '' Emarginula dictya'' McLean, 1970
* '' Emarginula dilecta'' Adams, 1852
* ''Emarginula divae'' (van Aartsen & Carrozza, 1995)
* ''Emarginula dubia'' Schepman, 1908
* † '' Emarginula espibosensis'' Lozouet, 1999
* † '' Emarginula fenestrata'' Deshayes, 1861 †
* '' Emarginula fenestrella'' Deshayes, 1863
* '' Emarginula fissura'' (Linnaeus, 1758) - slit limpet
* † '' Emarginula fossorensis'' Lozouet, 1999
* '' Emarginula foveolata'' Schepman, 1908
** ''Emarginula foveolata fugitai'' Habe, 1953
* '' Emarginula fragilis'' Yokoyama, 1920
* '' Emarginula fulginea'' Adams, 1851
* '' Emarginula gabensis'' (Gabriel, 1961)
* † ''Emarginula galeriformis'' Marwick, 1928
* † '' Emarginula gigantea'' Poppe, 2008
* '' Emarginula gustavi'' Poppe & Tagaro, 2020
* '' Emarginula hataii'' Habe, 1953
* '' Emarginula hawaiiensis'' Dall, 1895
* † '' Emarginula haweraensis'' Powell, 1931
* '' Emarginula hosoyai'' Habe, 1953
* ''Emarginula huzardii'' ( Payraudeau, 1826)
* '' Emarginula icosisculpta'' Simone & Cunha, 2014
* '' Emarginula imaizumi'' Dall, 1926
* † '' Emarginula imbricata'' Millet, 1865
* '' Emarginula imella'' Dall, 1926
* ''Emarginula intervecta'' Locard, 1898: synonym of '' Emarginula fissura'' (Linnaeus, 1758)
* '' Emarginula janae'' Cossignani, 2020
* '' Emarginula japonica'' Sowerby in Adams & Sowerby, 1863
* '' Emarginula jungcheni'' K.-Y. Lai, 2019
* † '' Emarginula kaiparica'' Laws, 1939
* '' Emarginula kashimaensis'' Shikama, 1962
* † '' Emarginula komitica'' Laws, 1939
* ''Emarginula koon'' Kilburn, 1978
* '' Emarginula lata'' J.R.C. Quoy & J.P. Gaimard, 1834
* '' Emarginula liuzzii'' Poppe & Tagaro, 2020
* '' Emarginula longifissa'' Sowerby, 1866
* '' Emarginula lorenzoi'' Giusti & Micali, 2019
* '' Emarginula macclurgi'' Kilburn, 1978
* '' Emarginula mactanensis'' Poppe & Tagaro, 2020
* '' Emarginula maculata'' Adams in Adams & Sowerby, 1863
* '' Emarginula margarita'' Poppe & Tagaro, 2020
* '' Emarginula micans'' Adams, 1852
* '' Emarginula multistriata'' Jeffreys, 1882
* '' Emarginula natalensis'' Barnard, 1963
* '' Emarginula nigromaculata'' (Thiele, 1930)
* '' Emarginula nordica'' Pérez Farfante, 1947 - northern emarginula
* † '' Emarginula oblonga'' Sandberger, 1859
* '' Emarginula obovata'' Adams, 1852
* '' Emarginula octaviana'' Coen, 1939
* '' Emarginula oppressa'' Barnard, 1963
* '' Emarginula paivana'' (Crosse, 1867)
* '' Emarginula patula'' Cotton, 1930
* † '' Emarginula paucicostata'' Laws, 1936
* '' Emarginula paucipunctata'' Schepman, 1908
* '' Emarginula philippinensis'' Poppe & Tagaro, 2020
* '' Emarginula phrixodes'' Dall, 1927 - ruffled emarginula
* '' Emarginula pittensis'' Marwick, 1928
* ''Emarginula poppeorum'' Romani & Crocetta, 2017
* † '' Emarginula praesicula'' Lozouet, 1999
* '' Emarginula puncticulata'' Adams, 1852
* ''Emarginula punctulum'' Piani, 1980
* '' Emarginula pustula'' Thiele in Küster, 1913
* '' Emarginula quadrata'' Poppe & Tagaro, 2020
* '' Emarginula regia'' Habe, 1953
* '' Emarginula retecosa'' Adams, 1851
* '' Emarginula rosea'' Bell, 1824
* '' Emarginula scabriuscula'' Adams, 1852
* '' Emarginula sicula'' 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
* ''Emarginula subtilitexta'' Verco, 1908
* '' Emarginula superba'' Hedley, 1906
* '' Emarginula suspira'' Simone & Cunha, 2014
* ''Emarginula tenera'' Locard, 1892
* † '' Emarginula teneraeformis'' Lozouet, 1999
* '' Emarginula tenuicostata'' Sowerby, 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 viridibrunneis'' Poppe & Tagaro, 2020
* '' Emarginula viridicana'' Herbert & Kilburn, 1985
* ''Emarginula viridis'' Poppe & Tagaro, 2020
* '' Emarginula xishaensis'' Lu, 1986
* '' Emarginula yangeorum'' Poppe & Tagaro, 2020

The following species are mentioned in other databases :
The Indo-Pacific Molluscan Database also mentions the following species with names in current use :OBIS : Emarginula
/ref>
* '' Emarginula curvata'' Schepman, 1908
* '' Emarginula multisquamosa'' Schepman, 1908
* '' Emarginula sublaevis'' Schepman, 1908

; 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:
* ''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'' Sowerby, 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 phrygium'' Herbert & Kilburn, 1985: synonym of '' Agariste phrygium'' (Herbert & Kilburn, 1986) (original combination)
* ''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

*
* Powell A W B, ''New Zealand Mollusca'', William Collins Publishers Ltd, Auckland, New Zealand 1979
* 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

{{Taxonbar, from=Q3176224

Fissurellidae
Gastropod genera
Taxa named by Jean-Baptiste Lamarck