Monotygma

{{Short description|Genus of gastropods}} {{Use dmy dates|date=July 2024}} {{Automatic_taxobox |taxon = Monotygma |image= Monotygma julii 001.jpg |image_caption= Shell of ''Monotygma julii'' (syntype at MNHN, Paris) |authority = G.B. Sowerby II, 1839 |type_species= ''Monotygma striata'' Gray, 1847 |synonyms_ref =<ref name=":0" /> |synonyms = {{hidden begin|title = List}} * ''Actaeopyramis'' P. Fischer, 1885 * ''Kleinella'' (''Actaeopyramis'') P. Fischer, 1885 * ''Monoptygma'' Lea, 1833 sensu A. Adams, 1853 * ''Monotigma'' G.B. Sowerby II, 1839 * ''Pyramidella'' (''Actaeopyramis'') P. Fischer, 1885 {{hidden end}} |display_parents= 3 }}

'''''Monotygma''''' is a genus of sea snails, marine gastropod mollusks in the family Pyramidellidae, the pyrams and their allies.<ref name=":0">{{Cite web |title=WoRMS – World Register of Marine Species – Monotygma G. B. Sowerby II, 1839 |url=https://www.marinespecies.org/aphia.php?p=taxdetails&id=138410 |access-date=6 July 2023 |website=www.marinespecies.org}}</ref><ref>Vaught, K.C. (1989). A classification of the living Mollusca. American Malacologists: Melbourne, FL (USA). {{ISBN|0-915826-22-4}}. XII, 195 pp.</ref> The status of this genus was for a long time confused, but the situation was clarified in a review by van Aartsen (1986).

==Life habits== Little is known about the biology of the members of this genus. As is true of most members of the Pyramidellidae ''sensu lato'', they are most likely to be ectoparasites.

==Species== The following species are recognised in the genus ''Monotygma'':<ref name=":0" /> {{div col|colwidth=20em}}

*''Monotygma acuminata'' {{small|(Gould, 1861)}} *''Monotygma amoena'' {{small|(A. Adams, 1853)}} *''Monotygma caelata'' {{small|(A. Adams, 1861)}} *''Monotygma elata'' {{small|(Koenen, 1882) †}} *''Monotygma enosima'' {{small|(Clessin, 1902)}} *''Monotygma eximia'' {{small|(Lischke, 1872)}} *''Monotygma fulva'' {{small|(A. Adams, 1853)}} *''Monotygma granulata'' {{small|(A. Adams, 1853)}} * † ''Monotygma ivolasi'' {{small|(Mayer-Eymar 1900) }} *''Monotygma julii'' {{small|(Saurin, 1959)}} *''Monotygma lauta'' {{small|(A. Adams, 1853)}} * † ''Monotygma marcusseni'' {{small|(Schnetler, 2001) }} *''Monotygma metula'' {{small|(A. Adams, 1861)}} *''Monotygma pareximia'' {{small|(Nomura, 1936)}} *''Monotygma puncticulata'' {{small|(Gould, 1861)}} *''Monotygma punctigera'' {{small|(A. Adams, 1861)}} *''Monotygma sinuata'' {{small|(Gould, 1861)}} *''Monotygma striata'' {{small|Gray, 1847}} *''Monotygma suturalis'' {{small|(A. Adams, 1853)}} *''Monotygma watsoni'' {{small|(Hornung & Mermod, 1927)}} {{div col end}}

;Synonyms: * ''Monotygma casta'' (A. Adams, 1853): synonym of ''Leucotina casta'' (A. Adams, 1853) (superseded combination) * ''Monotygma concinna'' (A. Adams, 1854): synonym of ''Leucotina casta'' (A. Adams, 1853) (superseded combination) * ''Monotygma gavisa'' (Melvill, 1896): synonym of ''Rissopsetia gavisa'' (Melvill, 1896) * ''Monotygma modesta'' (de Folin, 1870): synonym of ''Careliopsis modesta'' (de Folin, 1870) * ''Monotygma pura'' (A. Adams, 1854): synonym of ''Leucotina casta'' (A. Adams, 1853) (unaccepted > junior subjective synonym)

==References== {{Reflist}}

==External links== * [https://www.biodiversitylibrary.org/item/87826 Sowerby, G. B. II. (1839). A Conchological Manual. G. B. Sowerby, London, v, 130 pp., 24 pls] * [http://www.vliz.be/imisdocs/publications/ocrd/254404.pdf 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] * [http://biodiversitylibrary.org/page/49926462 Aartsen, J. J. van (1986). "Nomenclatural notes I. On Actaeopyramis as related to Monoptygma, Monotigma and Monotygma". Bolettino Malacologico 22 (5–8): 182–184.]

Category:Pyramidellidae Category:Taxa named by George Brettingham Sowerby II