Monotygma is a genus of sea snails, marine gastropod mollusks in the family Pyramidellidae, the pyrams and their allies.Vaught, K.C. (1989). A classification of the living Mollusca. American Malacologists: Melbourne, FL (USA). . XII, 195 pp. 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:
Monotygma acuminata Monotygma amoena Monotygma caelata Monotygma elata Monotygma enosima Monotygma eximia Monotygma fulva Monotygma granulata † Monotygma ivolasi Monotygma julii Monotygma lauta † Monotygma marcusseni Monotygma metula Monotygma pareximia Monotygma puncticulata Monotygma punctigera Monotygma sinuata Monotygma striata Monotygma suturalis Monotygma watsoni
Synonyms Monotygma casta (A. Adams, 1853): synonym of Leucotina casta (A. Adams, 1853) (superseded combination) Monotygma concinna (A. Adams, 1854): synonym of Leucotina casta (A. Adams, 1853) (superseded combination) Monotygma gavisa (Melvill, 1896): synonym of Rissopsetia gavisa (Melvill, 1896) Monotygma modesta (de Folin, 1870): synonym of Careliopsis modesta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
External links Sowerby, G. B. II. (1839). A Conchological Manual. G. B. Sowerby, London, v, 130 pp., 24 pls 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 Aartsen, J. J. van (1986). "Nomenclatural notes I. On Actaeopyramis as related to Monoptygma, Monotigma and Monotygma". Bolettino Malacologico 22 (5–8): 182–184.