# Rissoa

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> Markdown URL: https://mediated.wiki/source/Rissoa.md
> Source: https://en.wikipedia.org/wiki/Rissoa
> Source revision: 1354865404
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{{Short description|Genus of gastropods}}
{{For|the defunct plant genus ''Rissoa''|Atalantia}}
{{Automatic taxobox 
|image = Rissoa janusi 001.jpg
|image_caption = Shell of ''Rissoa janusi''
|taxon = Rissoa
|authority = Freminville in Desmarest, 1814
|synonyms_ref = <ref name="WoRMS" />
|synonyms =
* ''Apicularia'' <small>Monterosato, 1884</small>
* ''Elatiella'' <small>Nordsieck, 1972</small>
* ''Goniostoma'' <small>Villa, 1841</small>
* ''Gueriniana'' <small>Nordsieck, 1972</small>
* ''Lamarckia'' <small>Leach, 1852</small>
* ''Liavenustia'' <small>Nordsieck, 1972</small>
* ''Lilacinia'' <small>Nordsieck, 1972</small>
* ''Loxostoma'' <small>Bivona-Bernardi, 1838</small>
* ''Persephona'' <small>Leach, 1852</small>
* ''Rissoia'' <small>Bronn, 1848</small>
* ''Rissostomia'' <small>G.O. Sars, 1878</small>
* ''Sabanea'' <small>Monterosato, 1884</small>
* ''Schwartzia'' <small>Bucquoy, Dautzenberg & Dollfus, 1884</small>
* ''Sfaxiella'' <small>Nordsieck, 1972</small>
* ''Turboella'' <small>Leach, 1847</small>
* ''Zippora'' <small>Leach, 1852</small>
|type_species = ''Rissoa ventricosa''
|type_species_authority = Desmarest, 1814
|subdivision_ranks = Species
|subdivision = See text
}}

'''''Rissoa''''' is a [genus](/source/genus) of minute [sea snail](/source/sea_snail)s, [marine](/source/marine_(ocean)) [gastropod](/source/gastropod) [mollusk](/source/mollusk)s or [micromollusk](/source/micromollusk)s in the [family](/source/Family_(taxonomy)) [Rissoidae](/source/Rissoidae).<ref name="WoRMS">{{WRMS species|138456|''Rissoa'' Freminville in Desmarest, 1814|||Gofas, S. (2010). Rissoa Freminville in Desmarest, 1814. In: Bouchet, P.; Gofas, S.; Rosenberg, G. (2010) World Marine Mollusca database. Accessed through:  [World Register of Marine Species](/source/World_Register_of_Marine_Species) at <nowiki>http://www.marinespecies.org/aphia.php?p=taxdetails&id=138456</nowiki> on 16 June 2011}}</ref>

The genus was first introduced by M. de Freminville for some small shells observed by M. [Antoine Risso](/source/Antoine_Risso), a distinguished naturalist of Nice, France. They were described by M. Demarest in 1814 in the "New Bulletin of the Philomatic Society".<ref name="Macgillivray" />

==Description==
The soft body of the snail is elongated and spiral. The somewhat prolonged mouth has a [proboscis](/source/proboscis). The tentacles are awl-shaped with the eyes on a small prominence near the base. The foot is oval or elliptical. The species is [phytophagous](/source/phytophagous).

The conical shell has an elongated [spire](/source/Spire_(mollusc)) with its [apex](/source/Apex_(mollusc)) nipple-shaped. The size of the shell varies between 1&nbsp;mm and 8&nbsp;mm. The [whorls](/source/Whorl_(mollusc)) are generally convex-shaped with a distinct suture. The [aperture](/source/Aperture_(mollusc)) is ovate, roundish or pear-shaped with its anterior end rounded, the posterior end acute and with the [peristome](/source/peristome) complete. The thin and horny [operculum](/source/Operculum_(gastropod)) is spirally marked and equally ovate, roundish or pear-shaped.<ref name="Macgillivray">[https://archive.org/stream/histmolluscous00macgrich#page/146/mode/2up   Macgillivray, William, History of the molluscous animals of Scotland, London, 1844]</ref>

==Habitat==
This species can be found on brown algae (genus ''[Fucus](/source/Fucus)''), in clefts of rocks, on stones, on mud or sand. Most will be found on sandy beaches along the line of the last tide.<ref name="Macgillivray" />

==Species==
Species within the genus ''Rissoa'' include:
{{div col|colwidth=20em}}
* ''[Rissoa aartseni](/source/Rissoa_aartseni)'' <small>Verduin, 1985</small><ref>{{WRMS species|141343|''Rissoa aartseni'' Verduin, 1985||9 August 2010}}</ref>
* ''[Rissoa acerosa](/source/Rissoa_acerosa)'' <small>Seguenza, 1903</small>
* ''[Rissoa acutata](/source/Rissoa_acutata)'' <small>Schauroth, 1857</small> †
* ''[Rissoa acuticosta](/source/Rissoa_acuticosta)'' <small>(Sacco, 1895)</small> † ([Homonymy](/source/Homonym_(biology)) junior secondary homonym of R. acuticosta Von Koenen, 1892, which seems to be a true Rissoa)
* ''[Rissoa acuticosta](/source/Rissoa_acuticosta)'' <small>Von Koenen, 1892</small> †
* ''[Rissoa adela](/source/Rissoa_adela)'' <small>d'Orbigny, 1852</small> †
* ''[Rissoa aethiopica](/source/Rissoa_aethiopica)'' <small>Thiele, 1925</small>
* ''[Rissoa albugo](/source/Rissoa_albugo)'' <small>Watson, 1873</small><ref>{{WRMS species|141344|''Rissoa albugo'' Watson, 1873||9 August 2010}}</ref>
* † ''[Rissoa alienocurta](/source/Rissoa_alienocurta)'' <small>Lozouet, 1998</small> 
* ''[Rissoa alleryi](/source/Rissoa_alleryi)'' <small>(Nordsieck, 1972)</small><ref>{{WRMS species|141345|''Rissoa alleryi'' (Nordsieck, 1972)||9 August 2010}}</ref>
* ''[Rissoa alpina](/source/Rissoa_alpina)'' <small>Gümbel, 1861</small> †
* ''[Rissoa angusticostata](/source/Rissoa_angusticostata)'' <small>Sandberger, 1860</small> †
* ''[Rissoa angustior](/source/Rissoa_angustior)'' <small>(Monterosato, 1917)</small><ref>{{WRMS species|141346|''Rissoa angustior'' (Monterosato, 1917)||9 August 2010}}</ref> (taxon inquirendum)
* ''[Rissoa anomala](/source/Rissoa_anomala)'' <small>Eichwald, 1830</small> †
* ''[Rissoa arata](/source/Rissoa_arata)'' <small>Philippi, 1849</small>
* ''[Rissoa athymorhyssa](/source/Rissoa_athymorhyssa)'' <small>Dall, 1892</small> †
* ''[Rissoa auriculata](/source/Rissoa_auriculata)'' <small>Seguenza, 1903</small>
* ''[Rissoa auriformis](/source/Rissoa_auriformis)'' <small>Pallary, 1904</small><ref>{{WRMS species|141347|''Rissoa auriformis'' Pallary, 1904||9 August 2010}}</ref>
* ''[Rissoa auriscalpium](/source/Rissoa_auriscalpium)'' <small>(Linnaeus, 1758)</small><ref>{{WRMS species|141348|''Rissoa auriscalpium'' (Linnaeus, 1758)||9 August 2010}}</ref>
* ''[Rissoa australis](/source/Rissoa_australis)'' <small>G. B. Sowerby II, 1877</small>
* ''[Rissoa baldacconii](/source/Rissoa_baldacconii)'' <small>Cantraine, 1842</small> †
* ''[Rissoa balliae](/source/Rissoa_balliae)'' <small>W. Thompson, 1840</small>
* ''[Rissoa banatica](/source/Rissoa_banatica)'' <small>Jekelius, 1944</small> †
* ''[Rissoa basisulcata](/source/Rissoa_basisulcata)'' <small>Etheridge & Bell in Bell, 1898</small> †
* ''[Rissoa becki](/source/Rissoa_becki)'' <small>W. H. Turton, 1933</small>
* ''[Rissoa bissulca](/source/Rissoa_bissulca)'' <small>Buvignier, 1843</small> †
* ''[Rissoa boytonensis](/source/Rissoa_boytonensis)'' <small>Harmer, 1925</small> †
* ''[Rissoa buccinalis](/source/Rissoa_buccinalis)'' <small>(Lamarck, 1804)</small> †
* ''[Rissoa callistrophia](/source/Rissoa_callistrophia)'' <small>Dall, 1892</small> †
* ''[Rissoa candidata](/source/Rissoa_candidata)'' <small>W. H. Turton, 1932</small>
* ''[Rissoa certa](/source/Rissoa_certa)'' <small>Svagrovský, 1971</small> †
* ''[Rissoa clotho](/source/Rissoa_clotho)'' <small>Hörnes, 1856</small> †
* ''[Rissoa conica](/source/Rissoa_conica)'' <small>L. Périer, 1867</small>
* ''[Rissoa conuloidea](/source/Rissoa_conuloidea)'' <small>Etheridge & Bell in Bell, 1893</small> †
* ''[Rissoa cooperi](/source/Rissoa_cooperi)'' <small>Tryon, 1865</small>
* ''[Rissoa costeiensis](/source/Rissoa_costeiensis)'' <small>Kowalke & Harzhauser, 2004</small> †
* ''[Rissoa costellata](/source/Rissoa_costellata)'' <small>Grateloup, 1838</small> †
* ''[Rissoa crefeldensis](/source/Rissoa_crefeldensis)'' <small>Wiechmann, 1874</small> †
* ''[Rissoa crux](/source/Rissoa_crux)'' <small>Eichwald, 1853</small> †
* ''[Rissoa cureti](/source/Rissoa_cureti)'' <small>Cossmann, 1918</small> †
* ''[Rissoa curta](/source/Rissoa_curta)'' <small>Dall, 1927</small>: (taxon inquirendum, non Dujardin, 1837)
* ''[Rissoa curticostata](/source/Rissoa_curticostata)'' <small>S. V. Wood, 1848</small> †
* ''[Rissoa cylindrella](/source/Rissoa_cylindrella)'' <small>Odhner, 1924</small>
* ''[Rissoa decipiens](/source/Rissoa_decipiens)'' <small>Deshayes, 1861</small> †
* ''[Rissoa decorata](/source/Rissoa_decorata)'' <small>Philippi, 1846</small><ref>{{WRMS species|141349|''Rissoa decorata'' Philippi, 1846||9 August 2010}}</ref>
* ''[Rissoa decorticata](/source/Rissoa_decorticata)'' <small>Landau, Ceulemans & Van Dingenen, 2018</small> †
* ''[Rissoa degrangei](/source/Rissoa_degrangei)'' <small>(Cossmann & Peyrot, 1919)</small> †
* ''[Rissoa densecosta](/source/Rissoa_densecosta)'' <small>Etheridge & Bell in Bell, 1893</small> †
* ''[Rissoa dilemma](/source/Rissoa_dilemma)'' <small>O. Boettger, 1907</small> †
* ''[Rissoa dissimilis](/source/Rissoa_dissimilis)'' <small>Harmer, 1920</small> †
* ''[Rissoa dobrogica](/source/Rissoa_dobrogica)'' <small>Necrasov, 1936</small>
* ''[Rissoa duboisii](/source/Rissoa_duboisii)'' <small>Nyst, 1845</small> †
* ''[Rissoa dupiniana](/source/Rissoa_dupiniana)'' <small>d'Orbigny, 1842</small> †
* ''[Rissoa electrae](/source/Rissoa_electrae)'' <small>Manousis, 2019</small>
* ''[Rissoa elegantula](/source/Rissoa_elegantula)'' <small>Piette, 1857</small> †
* ''[Rissoa epulata](/source/Rissoa_epulata)'' <small>Pilsbry & C. W. Johnson, 1917</small> †
* [Rissoa eurydictium](/source/Rissoa_eurydictium) <small>Cossmann, 1888</small> †
* ''[Rissoa euxinica](/source/Rissoa_euxinica)'' <small>Milaschevich, 1909</small><ref>{{WRMS species|234201|''Rissoa euxinica'' Milaschevich, 1909||9 August 2010}}</ref>
* ''[Rissoa exigua](/source/Rissoa_exigua)'' <small>Eichwald, 1830</small> †
* ''[Rissoa flexuosa](/source/Rissoa_flexuosa)'' <small>Von Koenen, 1892</small> †
* ''[Rissoa fragilis](/source/Rissoa_fragilis)'' <small>(Lamarck, 1804)</small> †
* ''[Rissoa fraterna](/source/Rissoa_fraterna)'' <small>Wiechmann, 1874</small> †
* ''[Rissoa frauenfeldiana](/source/Rissoa_frauenfeldiana)'' <small>Brusina, 1868</small><ref>{{WRMS species|141350|''Rissoa frauenfeldiana'' Brusina, 1868||9 August 2010}}</ref>
* ''[Rissoa gemmula](/source/Rissoa_gemmula)'' <small>Fischer P. in de Folin, 1869</small><ref>{{WRMS species|141351|''Rissoa gemmula'' Fischer P. in de Folin, 1869||9 August 2010}}</ref>
* ''[Rissoa geraea](/source/Rissoa_geraea)'' <small>Dall, 1892</small> †
* ''[Rissoa gibsoni](/source/Rissoa_gibsoni)'' <small>T. Brown, 1841</small> †
* ''[Rissoa glabrata](/source/Rissoa_glabrata)'' <small>G. B. Sowerby II, 1859</small>
* ''[Rissoa goepperti](/source/Rissoa_goepperti)'' <small>Schauroth, 1857</small> †
* ''[Rissoa gomerica](/source/Rissoa_gomerica)'' <small>(Nordsieck & Talavera, 1979)</small><ref>{{WRMS species|141352|''Rissoa gomerica'' (Nordsieck & Talavera, 1979)||9 August 2010}}</ref>
* ''[Rissoa gracilicosta](/source/Rissoa_gracilicosta)'' <small>Etheridge & Bell in Bell, 1893</small> †
* ''[Rissoa granulum](/source/Rissoa_granulum)'' <small>Philippi, 1844</small> (taxon inquirendum)
* ''[Rissoa guerinii](/source/Rissoa_guerinii)'' <small>Récluz, 1843</small><ref>{{WRMS species|141353|''Rissoa guerinii'' Récluz, 1843||9 August 2010}}</ref>
* ''[Rissoa guernei](/source/Rissoa_guernei)'' <small>Dautzenberg, 1889</small><ref>{{WRMS species|141354|''Rissoa guernei'' Dautzenberg, 1889||9 August 2010}}</ref>
* ''[Rissoa harmeri](/source/Rissoa_harmeri)'' <small>Faber, 2018</small> †
* ''[Rissoa hebes](/source/Rissoa_hebes)'' <small>O. Boettger, 1907</small> †
* ''[Rissoa hidasensis](/source/Rissoa_hidasensis)'' <small>Csepreghy-Meznerics, 1950</small> †
* ''[Rissoa houdasi](/source/Rissoa_houdasi)'' <small>Cossmann, 1907</small>
* ''[Rissoa ilca](/source/Rissoa_ilca)'' <small>Thiele, 1925</small>
* ''[Rissoa inchoata](/source/Rissoa_inchoata)'' <small>Deshayes, 1861</small> †
* ''[Rissoa incompta](/source/Rissoa_incompta)'' <small>A. A. Gould, 1862</small>
* ''[Rissoa incrassata](/source/Rissoa_incrassata)'' <small>J. Müller, 1851</small> †
* ''[Rissoa inflexicosta](/source/Rissoa_inflexicosta)'' <small>(Cossmann, 1921)</small> †
* ''[Rissoa infrastriolata](/source/Rissoa_infrastriolata)'' <small>Thiele, 1925</small>
* ''[Rissoa innocens](/source/Rissoa_innocens)'' <small>W. H. Turton, 1932</small>
* ''[Rissoa intermedia](/source/Rissoa_intermedia)'' <small>Grateloup, 1838</small> †
* ''[Rissoa intusstriata](/source/Rissoa_intusstriata)'' <small>Etheridge & Bell in Bell, 1893</small> †
* ''[Rissoa irritans](/source/Rissoa_irritans)'' <small>Thiele, 1925</small>
* ''[Rissoa italiensis](/source/Rissoa_italiensis)'' <small>Verduin, 1985</small><ref>{{WRMS species|141355|''Rissoa italiensis'' Verduin, 1985||9 August 2010}}</ref>
* ''[Rissoa janusi](/source/Rissoa_janusi)'' <small>(Nordsieck, 1972)</small><ref>{{WRMS species|141356|''Rissoa janusi'' (Nordsieck, 1972)||9 August 2010}}</ref>
* ''[Rissoa jurensis](/source/Rissoa_jurensis)'' <small>Etallon, 1862</small> †
* ''[Rissoa karsteni](/source/Rissoa_karsteni)'' <small>R. Janssen, 1978</small> †
* ''[Rissoa latior](/source/Rissoa_latior)'' <small>(Mighels & C. B. Adams, 1844)</small>
* ''[Rissoa leighi](/source/Rissoa_leighi)'' <small>T. Brown, 1841</small> †
* ''[Rissoa lia](/source/Rissoa_lia)'' <small>(Monterosato, 1884)</small><ref>{{WRMS species|141357|''Rissoa lia'' (Monterosato, 1884)||9 August 2010}}</ref>
* ''[Rissoa lilacina](/source/Rissoa_lilacina)'' <small>Récluz, 1843</small><ref>{{WRMS species|141358|''Rissoa lilacina'' Récluz, 1843||9 August 2010}}</ref>
* ''[Rissoa lipeus](/source/Rissoa_lipeus)'' <small>Dall, 1892</small> †
* ''[Rissoa lusoria](/source/Rissoa_lusoria)'' <small>Yokoyama, 1926</small> †
* ''[Rissoa macra](/source/Rissoa_macra)'' <small>R. B. Watson, 1886</small>
* ''[Rissoa maya](/source/Rissoa_maya)'' <small>Yokoyama, 1926</small> †
* ''[Rissoa membranacea](/source/Rissoa_membranacea)'' (Adams J., 1800)<ref>{{WRMS species|141359|''Rissoa membranacea'' (Adams J., 1800)||9 August 2010}}</ref>
* [Rissoa microcharia](/source/Rissoa_microcharia) <small>Dall, 1892</small> †
* ''[Rissoa mirabilis](/source/Rissoa_mirabilis)'' <small>Manzoni, 1868</small><ref>{{WRMS species|180959|''Rissoa mirabilis'' Manzoni, 1868||9 August 2010}}</ref>
* ''[Rissoa misera](/source/Rissoa_misera)'' <small>Deshayes, 1861</small> †
* ''[Rissoa mitreola](/source/Rissoa_mitreola)'' <small>Eichwald, 1853</small> †
* ''[Rissoa modesta](/source/Rissoa_modesta)'' <small>(H. C. Lea, 1845)</small>
* ''[Rissoa monodonta](/source/Rissoa_monodonta)'' <small>Philippi, 1836</small><ref>{{WRMS species|141360|''Rissoa monodonta'' Philippi, 1836||9 August 2010}}</ref>
* ''[Rissoa moreana](/source/Rissoa_moreana)'' <small>Buvignier, 1852</small> †
* ''[Rissoa mosensis](/source/Rissoa_mosensis)'' <small>Buvignier, 1852</small> †
* ''[Rissoa mucronata](/source/Rissoa_mucronata)'' <small>Svagrovský, 1971</small> †
* ''[Rissoa multicincta](/source/Rissoa_multicincta)'' <small>(Smriglio & Mariottini, 1995)</small><ref>{{WRMS species|141361|''Rissoa multicincta'' (Smriglio & Mariottini, 1995)||9 August 2010}}</ref>
* ''[Rissoa multicostata](/source/Rissoa_multicostata)'' <small>(Nordsieck & Talavera, 1979)</small><ref>{{WRMS species|141362|''Rissoa multicostata'' (Nordsieck & Talavera, 1979)||9 August 2010}}</ref>
* ''[Rissoa munieri](/source/Rissoa_munieri)'' <small>Szöts, 1953</small> †
* ''[Rissoa nina](/source/Rissoa_nina)'' Nordsieck, 1972 (nomen dubium)
* ''[Rissoa obeliscoides](/source/Rissoa_obeliscoides)'' <small>Landau, Ceulemans & Van Dingenen, 2018</small> †
* ''[Rissoa obeliscus](/source/Rissoa_obeliscus)'' <small>May, 1915</small>
* ''[Rissoa obtusa](/source/Rissoa_obtusa)'' <small>T. Brown, 1841</small> †
* ''[Rissoa olangoensis](/source/Rissoa_olangoensis)'' <small>Poppe, Tagaro & Stahlschmidt, 2015</small> 
* ''[Rissoa oldhamiana](/source/Rissoa_oldhamiana)'' <small>Stoliczka, 1867</small> †
* ''[Rissoa ovulum](/source/Rissoa_ovulum)'' <small>Philippi, 1844</small> †
* ''[Rissoa pachia](/source/Rissoa_pachia)'' <small>R. B. Watson, 1886</small>
* ''[Rissoa panhormensis](/source/Rissoa_panhormensis)'' <small>Verduin, 1985</small><ref>{{WRMS species|141363|''Rissoa panhormensis'' Verduin, 1985||9 August 2010}}</ref>
* ''[Rissoa papuana](/source/Rissoa_papuana)'' <small>Tapparone Canefri, 1877</small>
* ''[Rissoa paradoxa](/source/Rissoa_paradoxa)'' <small>(Monterosato, 1884)</small><ref>{{WRMS species|141364|''Rissoa paradoxa'' (Monterosato, 1884)||9 August 2010}}</ref>
* ''[Rissoa parva](/source/Rissoa_parva)'' <small>(da Costa, 1778)</small><ref>{{WRMS species|141365|''Rissoa parva'' (da Costa, 1778)||9 August 2010}}</ref>
* ''[Rissoa patens](/source/Rissoa_patens)'' <small>A. A. Gould, 1862</small>
* ''[Rissoa paupera](/source/Rissoa_paupera)'' <small>Thiele, 1925</small>
* ''[Rissoa peregra](/source/Rissoa_peregra)'' <small>Thiele, 1925</small>
* ''[Rissoa perforata](/source/Rissoa_perforata)'' <small>Thiele, 1925</small>
* ''[Rissoa perspecta](/source/Rissoa_perspecta)'' <small>E. A. Smith, 1904</small>
* ''[Rissoa phagon](/source/Rissoa_phagon)'' <small>J. A. Gardner, 1947</small> †
* ''[Rissoa plagiostoma](/source/Rissoa_plagiostoma)'' <small>Thiele, 1925</small>
* ''[Rissoa plica](/source/Rissoa_plica)'' <small>Can, 18444traine, 1842</small>
* ''[Rissoa pompholyx](/source/Rissoa_pompholyx)'' Dall, 1927
* ''[Rissoa poustagnacensis](/source/Rissoa_poustagnacensis)'' <small>Lozouet, 1998</small> †
* ''[Rissoa pouweri](/source/Rissoa_pouweri)'' <small>Van Dingenen, Ceulemans & Landau, 2016</small> †
* ''[Rissoa proditoris](/source/Rissoa_proditoris)'' <small>Thiele, 1925</small>
* ''[Rissoa pseudoguerini](/source/Rissoa_pseudoguerini)'' <small>(Nordsieck & Talavera, 1979)</small><ref>{{WRMS species|141366|''Rissoa pseudoguerini'' (Nordsieck & Talavera, 1979)||9 August 2010}}</ref>
* ''[Rissoa pseudoturricula](/source/Rissoa_pseudoturricula)'' <small>Strausz, 1966</small> †
* ''[Rissoa pucilla](/source/Rissoa_pucilla)'' <small>T. Brown, 1841</small> †
* ''[Rissoa punctatissima](/source/Rissoa_punctatissima)'' <small>R. Janssen, 1978</small> †
* ''[Rissoa punctum](/source/Rissoa_punctum)'' <small>Cantraine, 1842</small>
* ''[Rissoa quantilla](/source/Rissoa_quantilla)'' <small>W. H. Turton, 1932</small>
* ''[Rissoa quarantellii](/source/Rissoa_quarantellii)'' <small>Brunetti & Vecchi, 2005</small> †
* ''[Rissoa reussi](/source/Rissoa_reussi)'' <small>Geinitz, 1875</small> †
* ''[Rissoa rimata](/source/Rissoa_rimata)'' <small>Philippi, 1844</small> †
* ''[Rissoa robusta](/source/Rissoa_robusta)'' <small>(H. C. Lea, 1845)</small>
* ''[Rissoa rodhensis](/source/Rissoa_rodhensis)'' Verduin, 1985<ref>{{WRMS species|141367|''Rissoa rodhensis'' Verduin, 1985||9 August 2010}}</ref>
* ''[Rissoa rufa](/source/Rissoa_rufa)'' <small>Philippi, 1849</small>
* ''[Rissoa rufanensis](/source/Rissoa_rufanensis)'' <small>W. H. Turton, 1933</small>
* ''[Rissoa rugosa](/source/Rissoa_rugosa)'' <small>Svagrovský, 1971</small> †
* ''[Rissoa rustica](/source/Rissoa_rustica)'' <small>R. B. Watson, 1886</small>
* ''[Rissoa sadoensis](/source/Rissoa_sadoensis)'' <small>Yokoyama, 1926</small> †
* ''[Rissoa sandbergeri](/source/Rissoa_sandbergeri)'' <small>J. Müller, 1851</small> †
* ''[Rissoa sarae](/source/Rissoa_sarae)'' <small>Brunetti, Cresti & Forli, 2017</small> †
* ''[Rissoa scurra](/source/Rissoa_scurra)'' <small>(Monterosato, 1917)</small><ref>{{WRMS species|141368|''Rissoa scurra'' (Monterosato, 1917)||9 August 2010}}</ref>
* ''[Rissoa scutula](/source/Rissoa_scutula)'' <small>Bell, 1892</small> †
* ''[Rissoa searlesii](/source/Rissoa_searlesii)'' <small>Harmer, 1925</small> †
* ''[Rissoa seguenzorum](/source/Rissoa_seguenzorum)'' <small>Bertolaso & Palazzi, 2000</small> †
* ''[Rissoa selseyensis](/source/Rissoa_selseyensis)'' <small>Harmer, 1925</small> †
* ''[Rissoa semicarinata](/source/Rissoa_semicarinata)'' <small>de Folin, 1870</small>
* ''[Rissoa semilaevis](/source/Rissoa_semilaevis)'' <small>Von Koenen, 1892</small> †
* ''[Rissoa senecta](/source/Rissoa_senecta)'' <small>S. V. Wood, 1872</small> †
* ''[Rissoa siberutensis](/source/Rissoa_siberutensis)'' <small>Thiele, 1925</small>
* ''[Rissoa similis](/source/Rissoa_similis)'' <small>Scacchi, 1836</small><ref>{{WRMS species|141369|''Rissoa similis'' Scacchi, 1836||9 August 2010}}</ref>
* ''[Rissoa sismondiana](/source/Rissoa_sismondiana)'' <small>Issel, 1869</small>
* ''[Rissoa sobieskii](/source/Rissoa_sobieskii)'' <small>Friedberg, 1923</small> †
* ''[Rissoa soceni](/source/Rissoa_soceni)'' <small>Jekelius, 1944</small> †
* ''[Rissoa solidula](/source/Rissoa_solidula)'' <small>Philippi, 1849</small>
* ''[Rissoa sordida](/source/Rissoa_sordida)'' <small>W. H. Turton, 1932</small>
* ''[Rissoa sowerbyi](/source/Rissoa_sowerbyi)'' <small>W. H. Turton, 1932</small>
* ''[Rissoa spinosa](/source/Rissoa_spinosa)'' <small>Seguenza</small> †
* ''[Rissoa splendida](/source/Rissoa_splendida)'' <small>Eichwald, 1830</small><ref>{{WRMS species|141370|''Rissoa splendida'' Eichwald, 1830||9 August 2010}}</ref>
* ''[Rissoa striatula](/source/Rissoa_striatula)'' <small>Eichwald, 1830</small> †
* ''[Rissoa strombecki](/source/Rissoa_strombecki)'' <small>Schauroth, 1857</small> †
* ''[Rissoa subcarinta](/source/Rissoa_subcarinta)'' <small>Cantraine, 1842</small> †
* ''[Rissoa subclathrata](/source/Rissoa_subclathrata)'' <small>Buvignier, 1852</small> †
* ''[Rissoa sublachesis](/source/Rissoa_sublachesis)'' <small>Zhizhchenko, 1936</small> †
* ''[Rissoa submarginata](/source/Rissoa_submarginata)'' <small>d'Orbigny, 1850</small> †
* ''[Rissoa subperforata](/source/Rissoa_subperforata)'' <small>Jeffreys, 1884</small> †
* ''[Rissoa sulcifera](/source/Rissoa_sulcifera)'' <small>G. B. Sowerby II, 1876</small>
* ''[Rissoa sumatrana](/source/Rissoa_sumatrana)'' <small>Thiele, 1925</small>
* ''[Rissoa sundaica](/source/Rissoa_sundaica)'' <small>Thiele, 1925</small>
* ''[Rissoa suttonensis](/source/Rissoa_suttonensis)'' <small>Harmer, 1925</small> †
* ''[Rissoa tenuilineata](/source/Rissoa_tenuilineata)'' <small>(Cossmann, 1921)</small> †
* ''[Rissoa terebellum](/source/Rissoa_terebellum)'' <small>Philippi, 1844</small> †
* ''[Rissoa terebralis](/source/Rissoa_terebralis)'' <small>Grateloup, 1838</small> †
* ''[Rissoa teres](/source/Rissoa_teres)'' <small>W. H. Turton, 1932</small>
* ''[Rissoa texta](/source/Rissoa_texta)'' <small>Borchert, 1901</small> 
* ''[Rissoa tirolensis](/source/Rissoa_tirolensis)'' <small>Koken in Wöhrmann & Koken, 1892</small> †
* ''[Rissoa tomlini](/source/Rissoa_tomlini)'' <small>W. H. Turton, 1933</small>
* ''[Rissoa torquata](/source/Rissoa_torquata)'' <small>Landau, Ceulemans & Van Dingenen, 2018</small> †
* ''[Rissoa torquilla](/source/Rissoa_torquilla)'' <small>Pallary, 1912</small><ref>{{WRMS species|141371|''Rissoa torquilla'' Pallary, 1912||9 August 2010}}</ref>
* ''[Rissoa trabeata](/source/Rissoa_trabeata)'' <small>Weisbord, 1962</small> †
* ''[Rissoa triasina](/source/Rissoa_triasina)'' <small>Schauroth, 1857</small> †
* ''[Rissoa tristriata](/source/Rissoa_tristriata)'' <small>W. Thompson, 1840</small>
* ''[Rissoa tritonia](/source/Rissoa_tritonia)'' <small>W. H. Turton, 1932</small>
* ''[Rissoa tropica](/source/Rissoa_tropica)'' <small>Stoliczka, 1868</small> †
* ''[Rissoa turbinata](/source/Rissoa_turbinata)'' <small>(Lamarck, 1804)</small> †
* ''[Rissoa turbinopsis](/source/Rissoa_turbinopsis)'' <small>Deshayes, 1861</small> †
* ''[Rissoa turricula](/source/Rissoa_turricula)'' <small>Eichwald, 1830</small> †
* ''[Rissoa umbilicata](/source/Rissoa_umbilicata)'' <small>Philippi, 1851</small>
* ''[Rissoa undulata](/source/Rissoa_undulata)'' <small>Deshayes, 1861</small> †
* ''[Rissoa unisulca](/source/Rissoa_unisulca)'' <small>Buvignier, 1843</small> †
* ''[Rissoa valfini](/source/Rissoa_valfini)'' <small>Guirand & Ogérien, 1865</small> †
* ''[Rissoa variabilis](/source/Rissoa_variabilis)'' <small>(Von Mühlfeldt, 1824)</small> <ref>{{WRMS species|141372|''Rissoa variabilis'' (Von Mühlfeldt, 1824)||9 August 2010}}</ref>
* ''[Rissoa velata](/source/Rissoa_velata)'' <small>Zekeli, 1852</small> †
* ''[Rissoa ventricosa](/source/Rissoa_ventricosa)'' <small>Desmarest, 1814</small><ref>{{WRMS species|141373|''Rissoa ventricosa'' Desmarest, 1814||9 August 2010}}</ref>
* ''[Rissoa venus](/source/Rissoa_venus)'' <small>d'Orbigny, 1852</small> †
* ''[Rissoa venusta](/source/Rissoa_venusta)'' <small>Philippi, 1844</small>
* ''[Rissoa verdensis](/source/Rissoa_verdensis)'' <small>Rolán & Oliveira, 2008</small><ref>{{WRMS species|458213|''Rissoa verdensis'' Rolán & Oliveira, 2008||9 August 2010}}</ref>
* ''[Rissoa vicina](/source/Rissoa_vicina)'' <small>Milaschevich, 1909</small><ref>{{WRMS species|234202|''Rissoa vicina'' Milaschevich, 1909||9 August 2010}}</ref>
* ''[Rissoa violacea](/source/Rissoa_violacea)'' <small>Desmarest, 1814</small><ref>{{WRMS species|141374|''Rissoa violacea'' Desmarest, 1814||9 August 2010}}</ref>
* ''[Rissoa virdunensis](/source/Rissoa_virdunensis)'' <small>Buvignier, 1852</small> †
* ''[Rissoa winkleri](/source/Rissoa_winkleri)'' <small>Müller, 1851</small> †
* ''[Rissoa ziga](/source/Rissoa_ziga)'' <small>De Gregorio, 1890</small> †
* ''[Rissoa zosta](/source/Rissoa_zosta)'' <small>Bayan, 1873</small> †
{{div col end}}

==Synonyms==
* ''Rissoa adarensis'' E.A. Smith, 1902: synonym of ''[Onoba kergueleni](/source/Onoba_kergueleni)'' (E. A. Smith, 1875)
* ''Rissoa albella'' Lovén, 1846: synonym of ''[Pusillina sarsii](/source/Pusillina_sarsii)'' (Lovén, 1846)
* ''Rissoa albella'' Alder, 1844: synonym of ''[Rissoella diaphana](/source/Rissoella_diaphana)'' (Alder, 1848)
* ''Rissoa albida'' <small>C. B. Adams, 1845</small>: synonym of ''[Zebinella albida](/source/Zebinella_albida)'' <small>(C. B. Adams, 1845)</small>
* ''Rissoa albolirata'' Carpenter, 1864: synonym of ''[Lirobarleeia albolirata](/source/Lirobarleeia_albolirata)'' (Carpenter, 1864)
* ''Rissoa alifera'' Thiele, 1925: synonym of ''[Hoplopteron alifera](/source/Hoplopteron_alifera)'' (Thiele, 1925)
* ''Rissoa alveata'' Melvill & Standen, 1901: synonym of ''[Iravadia quadrasi](/source/Iravadia_quadrasi)'' (O. Boettger, 1893)
* ''Rissoa atomus'' E. A. Smith, 1890 : synonym of ''[Eatonina fulgida](/source/Eatonina_fulgida)'' (Adams J., 1797)
* ''Rissoa australis'' Watson, 1886: synonym of ''[Powellisetia australis](/source/Powellisetia_australis)'' (Watson, 1886)
* ''Rissoa basispiralis'' Grant-Mackie & Chapman-Smith, 1971 † a: synonym of ''[Diala semistriata](/source/Diala_semistriata)'' (Philippi, 1849)
* ''Rissoa boscii'' (Payraudeau, 1826): synonym of ''[Melanella polita](/source/Melanella_polita)'' (Linnaeus, 1758)
* ''Rissoa calathus'' Forbes & Hanley, 1850: synonym of ''[Alvania beanii](/source/Alvania_beanii)'' (Hanley in Thorpe, 1844)
* ''Rissoa candidissima'' Webster, 1905 : synonym of ''[Subonoba candidissima](/source/Subonoba_candidissima)'' (Webster, 1905)
* ''Rissoa carnosa'' Webster, 1905: synonym of ''[Fictonoba carnosa](/source/Fictonoba_carnosa)'' (Webster, 1905)
* ''Rissoa cazini'' Vélain, 1877: synonym of ''[Pisinna cazini](/source/Pisinna_cazini)'' (Vélain, 1877)
* ''Rissoa cerithinum'' Philippi, 1849: synonym of ''[Cerithidium cerithinum](/source/Cerithidium_cerithinum)'' (Philippi, 1849)
* ''Rissoa columna'' Pelseneer, 1903: synonym of ''[Onoba kergueleni](/source/Onoba_kergueleni)'' (E. A. Smith, 1875)
* ''Rissoa corilea'' G. B. Sowerby II, 1876: synonym of ''[Stosicia corilea](/source/Stosicia_corilea)'' (G. B. Sowerby II, 1876)
* ''Rissoa coronata'' Scacchi, 1844: synonym of ''[Opalia hellenica](/source/Opalia_hellenica)'' (Forbes, 1844)
* ''Rissoa costata'' (J. Adams, 1796): synonym of ''[Manzonia crassa](/source/Manzonia_crassa)'' (Kanmacher, 1798)
* ''Rissoa costulata'' Alder, 1844: synonym of ''Rissoa guerinii'' Récluz, 1843
* ''Rissoa crassicostata'' C. B. Adams, 1845: synonym of ''[Opalia hotessieriana](/source/Opalia_hotessieriana)'' (d’Orbigny, 1842)
* ''Rissoa deserta'' E.A. Smith, 1907: synonym of ''[Powellisetia deserta](/source/Powellisetia_deserta)'' (E.A. Smith, 1907)
* ''Rissoa diaphana'' Alder, 1848: synonym of ''[Rissoella diaphana](/source/Rissoella_diaphana)'' (Alder, 1848)
* ''Rissoa dolium'' Nyst, 1845: synonym of ''[Pusillina philippi](/source/Pusillina_philippi)'' (Aradas & Maggiore, 1844)
* ''Rissoa dubiosa'' C. B. Adams, 1850: synonym of ''[Schwartziella dubiosa](/source/Schwartziella_dubiosa)'' (C. B. Adams, 1850)
* ''Rissoa edgariana'' Melvill & Standen, 1907: synonym of ''[Rissoa parva](/source/Rissoa_parva)'' (da Costa, 1778)
* ''Rissoa edwardiensis'' Watson, 1886: synonym of ''[Skenella edwardiensis](/source/Skenella_edwardiensis)'' (Watson, 1886)
* ''Rissoa emarginata'' Hutton, 1885: synonym of ''[Nozeba emarginata](/source/Nozeba_emarginata)'' (Hutton, 1885)
* ''Rissoa emblematica'' Hedley, 1906: synonym of ''[Emblanda emblematica](/source/Emblanda_emblematica)'' (Hedley, 1906)
* ''Rissoa eulimoides'' (C.B. Adams, 1850): synonym of ''[Melanella eulimoides](/source/Melanella_eulimoides)'' (C. B. Adams, 1850)
* ''Rissoa filostria'' Melvill & Standen, 1912: synonym of ''[Onoba filostria](/source/Onoba_filostria)'' (Melvill & Standen, 1912)
* ''Rissoa finckhi'' Hedley, 1899: synonym of ''[Chrystella finckhi](/source/Chrystella_finckhi)'' (Hedley, 1899)
* ''Rissoa garretti'' Tate, 1899: synonym of ''[Iravadia quadrasi](/source/Iravadia_quadrasi)'' (O. Boettger, 1893)
* ''Rissoa georgiana'' Pfeffer, 1886: synonym of ''[Onoba georgiana](/source/Onoba_georgiana)'' (Pfeffer, 1886)
* ''Rissoa gracilis'' Pease, 1860: synonym of ''[Pyramidelloides angustus](/source/Pyramidelloides_angustus)'' (Hedley, 1898)
* ''Rissoa griegi'' Friele, 1879: synonym of ''[Cingula griegi](/source/Cingula_griegi)'' (Friele, 1879)
* ''Rissoa grisea'' Martens, 1885: synonym of ''[Onoba grisea](/source/Onoba_grisea)'' (Martens, 1885)
* ''Rissoa inconspicua'' Alder, 1844: synonym of ''[Pusillina inconspicua](/source/Pusillina_inconspicua)'' (Alder, 1844)
* ''Rissoa inconspicua'' C. B. Adams, 1852: synonym of ''[Alvania monserratensis](/source/Alvania_monserratensis)'' Baker, Hanna & Strong, 1930
* ''Rissoa inflatella'' Thiele, 1912: synonym of ''[Onoba inflatella](/source/Onoba_inflatella)'' (Thiele, 1912)
* ''Rissoa infrequens'' C. B. Adams, 1852: synonym of ''[Opalia infrequens](/source/Opalia_infrequens)'' (C. B. Adams, 1852)
* ''Rissoa integella'' Hedley, 1904: synonym of ''[Attenuata integella](/source/Attenuata_integella)'' (Hedley, 1904)
* ''Rissoa interrupta'' (J. Adams, 1800):<ref>{{WRMS species|154011|''Rissoa interrupta'' (J. Adams, 1800)||9 August 2010}}</ref> synonym of ''[Rissoa parva](/source/Rissoa_parva)'' (da Costa, 1778)
* ''Rissoa janmayeni'' Friele, 1878: synonym of ''[Frigidoalvania janmayeni](/source/Frigidoalvania_janmayeni)'' (Friele, 1878)
* ''Rissoa kelseyi'' Dall & Bartsch, 1902: synonym of ''[Lirobarleeia kelseyi](/source/Lirobarleeia_kelseyi)'' (Dall & Bartsch, 1902)
* ''Rissoa kergueleni'' E. A. Smith, 1875: synonym of ''[Onoba kergueleni](/source/Onoba_kergueleni)'' (E. A. Smith, 1875)
* ''Rissoa labiosa'' ([Montagu](/source/George_Montagu_(naturalist)), 1803): synonym of ''Rissoa membranacea'' (J. Adams, 1800)
* ''Rissoa laevigata'' C. B. Adams, 1850: synonym of ''[Zebina browniana](/source/Zebina_browniana)'' (d'Orbigny, 1842)
* ''Rissoa lantzi'' Vélain, 1877: synonym of ''[Onoba lantzi](/source/Onoba_lantzi)'' (Vélain, 1877)
* ''Rissoa lineolata'' Michaud, 1830: synonym of ''[Pusillina lineolata](/source/Pusillina_lineolata)'' (Michaud, 1832)
* ''Rissoa lirata'' Carpenter, 1857: synonym of ''[Lirobarleeia lirata](/source/Lirobarleeia_lirata)'' (Carpenter, 1857)
* ''Rissoa marionensis'' Watson, 1886: synonym of ''[Eatoniella subrufescens](/source/Eatoniella_subrufescens)'' (E.A. Smith, 1875)
* ''Rissoa miliaris'' Thiele, 1912: synonym of ''[Skenella sinapi](/source/Skenella_sinapi)'' (Watson, 1886)
* ''Rissoa observationis'' Thiele, 1912: synonym of ''[Onoba kergueleni](/source/Onoba_kergueleni)'' (E. A. Smith, 1875)
* ''Rissoa ordinaria'' <small>E. A. Smith, 1890</small>: synonym of ''[Eatoniella ordinaria](/source/Eatoniella_ordinaria)'' <small>(E. A. Smith, 1890)</small>
* ''Rissoa paucilirata'' Melvill & Standen, 1912: synonym of ''[Onoba paucilirata](/source/Onoba_paucilirata)'' (Melvill & Standen, 1912)
* ''Rissoa pelseneeri'' Thiele, 1912: synonym of ''[Powellisetia pelseneeri](/source/Powellisetia_pelseneeri)'' (Thiele, 1912)
* ''Rissoa porifera'' <small>(Lovén, 1843)</small>:<ref>{{WRMS species|153669|''Rissoa porifera'' (Lovén, 1843)||9 August 2010}}</ref> synonym of ''[Rissoa lilacina](/source/Rissoa_lilacina)'' <small>Récluz, 1843</small>
* ''Rissoa principis'' Watson, 1886: synonym of ''[Powellisetia principis](/source/Powellisetia_principis)'' (Watson, 1886)
* ''Rissoa proxima'' Forbes & Hanley, 1850: synonym of ''[Ceratia proxima](/source/Ceratia_proxima)'' (Forbes & Hanley, 1850)
* ''Rissoa punctatostriata'' Tenison Woods, 1879: synonym of ''[Leucotina casta](/source/Leucotina_casta)'' (A. Adams, 1853)
* ''Rissoa punctulum'' Philippi, 1836: synonym of ''[Pisinna glabrata](/source/Pisinna_glabrata)'' (Von Mühlfeldt, 1824)
* ''Rissoa rufilabris'' Alder, 1844: synonym of ''Rissoa lilacina'' Récluz, 1843
* ''Rissoa rufilabrum'' <small>Alder, 1844</small>:<ref>{{WRMS species|154041|''Rissoa rufilabrum'' Alder||9 August 2010}}</ref> synonym of ''[Rissoa lilacina](/source/Rissoa_lilacina)'' <small>Récluz, 1843</small>
* ''Rissoa sarsii'' <small>Lovén, 1846</small>:<ref>{{WRMS species|153738|''Rissoa sarsii'' Lovén, 1846||9 August 2010}}</ref> synonym of ''[Pusillina sarsii](/source/Pusillina_sarsii)'' <small>(Lovén, 1846)</small>
* ''Rissoa scalarella'' C. B. Adams, 1845: synonym of ''[Schwartziella scalarella](/source/Schwartziella_scalarella)'' (C. B. Adams, 1845)
* ''Rissoa scotiana'' Melvill & Standen, 1907: synonym of ''[Onoba semicostata](/source/Onoba_semicostata)'' ([Montagu](/source/George_Montagu_(naturalist)), 1803)
* ''Rissoa semistriata'' Philippi, 1849: synonym of ''[Diala semistriata](/source/Diala_semistriata)'' (Philippi, 1849)
* ''Rissoa sinapi'' Watson, 1886: synonym of ''[Skenella sinapi](/source/Skenella_sinapi)'' (Watson, 1886)
* ''Rissoa sinuosa'' Scacchi, 1836: synonym of ''[Melanella sinuosa](/source/Melanella_sinuosa)'' (Scacchi, 1836)
* ''Rissoa striata'' (J. Adams, 1797): synonym of ''[Onoba semicostata](/source/Onoba_semicostata)'' ([Montagu](/source/George_Montagu_(naturalist)), 1803)
* ''Rissoa striatula'' Jeffreys, 1847: synonym of ''[Ceratia proxima](/source/Ceratia_proxima)'' (Forbes & Hanley, 1850)
* ''Rissoa studeriana'' Thiele, 1912: synonym of ''[Onoba steineni](/source/Onoba_steineni)'' (Strebel, 1908)
* ''Rissoa suavis'' Thiele, 1925: synonym of ''[Onoba suavis](/source/Onoba_suavis)'' (Thiele, 1925)
* ''Rissoa subangulata'' C.B. Adams, 1850: synonym of ''[Schwartziella bryerea](/source/Schwartziella_bryerea)'' ([Montagu](/source/George_Montagu_(naturalist)), 1803)
* ''Rissoa subantarctica'' Thiele, 1912: synonym of ''[Onoba subantarctica](/source/Onoba_subantarctica)'' (Thiele, 1912)
* ''Rissoa subcostulata'' Schwartz, 1864: synonym of ''Rissoa guerinii'' Récluz, 1843
* ''Rissoa subtruncata'' Pelseneer, 1903: synonym of ''[Powellisetia pelseneeri](/source/Powellisetia_pelseneeri)'' (Thiele, 1912)
* ''Rissoa subtruncata'' Vélain, 1877: synonym of ''[Scrobs subtruncata](/source/Scrobs_subtruncata)'' (Vélain, 1877)
* ''Rissoa syngenes'' (A. E. Verril, 1884): synonym of ''[Alvania syngenes](/source/Alvania_syngenes)'' (A. E. Verrill, 1884)
* ''Rissoa transenna'' Watson, 1886: synonym of ''[Onoba transenna](/source/Onoba_transenna)'' (Watson, 1886) 
* ''Rissoa valdiviae'' Thiele, 1925: synonym of ''[Onoba steineni](/source/Onoba_steineni)'' (Strebel, 1908)
* ''Rissoa venusta'' Garrett, 1873: synonym of ''[Iravadia quadrasi](/source/Iravadia_quadrasi)'' (O. Boettger, 1893)
* ''Rissoa vitrea'' C. B. Adams, 1850: synonym of ''[Zebina vitrea](/source/Zebina_vitrea)'' (C. B. Adams, 1850)
* ''Rissoa xanthias'' Watson, 1886: synonym of ''[Benthonellania xanthias](/source/Benthonellania_xanthias)'' (Watson, 1886)
* ''Rissoa xanthias'' var. ''acuticostata'' Dall, 1889: synonym of ''[Benthonellania acuticostata](/source/Benthonellania_acuticostata)'' (Dall, 1889)

==References==
{{Reflist}}
* Nordsieck, F. (1972). Die europäischen Meeresschnecken (Opisthobranchia mit Pyramidellidae; Rissoacea). Vom Eismeer bis Kapverden, Mittelmeer und Schwarzes Meer. Gustav Fischer, Stuttgart. XIII + 327 pp.
* Vaught, K.C. (1989). ''A classification of the living Mollusca''. American Malacologists: Melbourne, FL (USA). {{ISBN|0-915826-22-4}}. XII, 195 pp.
* 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.&nbsp;180–213

==External links==
* [https://biodiversitylibrary.org/page/4121250 Desmarest A. G. (1814). Description des coquilles univalves du genre Rissoa de M. De Fréminville. Bulletin des Sciences, par la Société Philomatique de Paris. 1814: 7-9, pl. 1.]
* [https://www.biodiversitylibrary.org/page/1310707 Leach W. E. (1852). Molluscorum Britanniae Synopsis. A synopsis of the Mollusca of Great Britain arranged according to their natural affinities and anatomical structure. London pp. VIII + 376]
* [https://www.biodiversitylibrary.org/item/109711 Monterosato, T. A. di. (1884). Nomenclatura generica e specifica di alcune conchiglie mediterranee. Virzi, printed for the author, Palermo, 152 pp]
* [https://www.biodiversitylibrary.org/item/103592 Bucquoy E., Dautzenberg P. & Dollfus G. (1882-1886). Les mollusques marins du Roussillon. Tome Ier. Gastropodes. Paris: Baillière & fils. 570 pp., 66 pls.]
* [http://australianmuseum.net.au/journal/Ponder-1985-Rec-Aust-Mus-Suppl-4-1221/  Ponder W. F. (1985). A review of the Genera of the Rissoidae (Mollusca: Mesogastropoda: Rissoacea). Records of the Australian Museum supplement 4: 1-221]

{{Commons category|Rissoa}}
{{Taxonbar|from=Q3169901}}

Category:Rissoa
Category:Gastropod genera

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Adapted from the Wikipedia article [Rissoa](https://en.wikipedia.org/wiki/Rissoa) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Rissoa?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.