Metaxia

Metaxia
Metaxia duplicarinata
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
(unranked):	clade Caenogastropoda clade Hypsogastropoda Informal group Ptenoglossa
Superfamily:	Triphoroidea
Family:	Triphoridae
Genus:	Metaxia Monterosato, 1884
Type species
Murex metaxa Delle Chiaje, 1828
Species
See text
Synonyms
Cerithiopsis (Metaxia) Monterosato, 1884

Metaxia is a genus of minute sea snails with right-handed shell-coiling, marine gastropod mollusks or micromollusks in the family Triphoridae, which are mostly left-handed in shell-coiling.^[1]

• Metaxia abrupta (Watson, 1880)
• Metaxia albicephala Kay, 1979
• Metaxia bacillum (Issel, 1869)
• Metaxia brunnicephala Kay, 1979
• Metaxia carinapex Van der Linden, 1998
• Metaxia convexa (Carpenter, 1856)
• Metaxia diadema Bartsch, 1907
• Metaxia duplicarinata (Powell, 1940)
• Metaxia espinosai Rolán & Fernández-Garcés, 1992
• Metaxia exaltata (Powell, 1930)
• Metaxia excelsa Faber & Moolenbeek, 1991
• Metaxia fuscoapicata Thiele, 1930
• Metaxia gongyloskymnus Fernandes & Pimenta, 2011
• Metaxia hapax Van der Linden, 1998
• Metaxia incerta Fernandes & Rolán, 1988
• Metaxia kermadecensis B.A. Marshall, 1977
• Metaxia maoria (Finlay, 1930)
• Metaxia metaxa (delle Chiaje, 1828)
• Metaxia polynesica Rehder, 1980
• Metaxia prompta Rolán & Fernández-Garcés, 2008
• Metaxia propinqua Rolán & Fernández-Garcés, 2008
• Metaxia propria Rolán & Fernández-Garcés, 2008
• Metaxia protolineata (Laseron, 1951)
• Metaxia quadrata Faber, 2010
• Metaxia rugulosa (C. B. Adams, 1850)
• Metaxia solitaria B.A. Marshall, 1979
• Metaxia taeniolata (Dall, 1889)
• Metaxia tricarinata (Pease, 1861)
• Metaxia vicina (C. B. Adams, 1850)

Species brought into synonymy

• Metaxia bacilla [sic] : synonym of Metaxia bacillum (Issel, 1869) (misspelling of Metaxia bacillum (Issel, 1869) )
• Metaxia exilis (C. B. Adams, 1850): synonym of Metaxia excelsa Faber & Moolenbeek, 1991
• Metaxia metaxae (delle Chiaje, 1828) : synonym of Metaxia metaxa (delle Chiaje, 1828)

• 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
• Bouchet P., Rocroi J.P., Hausdorf B., Kaim A., Kano Y., Nützel A., Parkhaev P., Schrödl M. & Strong E.E. (2017). Revised classification, nomenclator and typification of gastropod and monoplacophoran families. Malacologia. 61(1-2): 1-526; note: type species fixation under Art. 70.3

• Monterosato T. A. (di) (1884). Nomenclatura generica e specifica di alcune conchiglie mediterranee. Palermo, Virzi, 152 pp
• Dall W.H. 1889. Reports on the results of dredging, under the supervision of Alexander Agassiz, in the Gulf of Mexico (1877-78) and in the Caribbean Sea (1879-80), by the U.S. Coast Survey Steamer "Blake", Lieut.-Commander C.D. Sigsbee, U.S.N., and Commander J.R. Bartlett, U.S.N., commanding. XXIX. Report on the Mollusca. Part 2, Gastropoda and Scaphopoda. Bulletin of the Museum of Comparative Zoölogy at Harvard College, 18: 1-492, pls. 10-40
• Marshall B.A. (1977). The dextral triforid genus Metaxia in the south-west Pacific. New Zealand Journal of Zoology. 4(2): 111-117
• Bouchet, P. (1985). Les Triphoridae de Méditerranée et du proche Atlantique (Mollusca, Gastropoda). Lavori, Società Italiana di Malacologia. 21: 5-58

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