Triptychus is a genus of sea snails, marine gastropod mollusks in the family Pyramidellidae, the pyrams and their allies.WoRMS (2010). Triptychus Mörch, 1875. In: Bouchet, P.; Gofas, S.; Rosenberg, G. (2010) World Marine Mollusca database. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=416104 on 2011-10-26
Description The subulate shell is spirally paucilirate. The aperture is lirate within, subsinuated in front. The columella is triplicate. G.W. Tryon, Manual of Conchology vol. VIII p. 295
Species Species within the genus Triptychus include: Triptychus incantatus (Hertlein & A. M. Strong, 1939) Triptychus litosbathron Pimenta, Santos & Absalao, 2008 Triptychus niveus (Mørch, 1875) Triptychus pacificus Corgan, 1973 Synonyms Triptychus olssoni (Bartsch, 1926): synonym of Triptychus incantatus (Hertlein & A. M. Strong, 1939) † Triptychus pliocena Bartsch, 1955: synonym of Peristichia pliocena (Bartsch, 1955) (original combination)
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ITIS World Register of Marine Species Mörch, O. A. L. (1875). Synopsis molluscorum marinorum Indiarum occidentalium imprimis insularum danicarum. Malakozoologische Blätter. 22: 142-184