Euchelus is a genus of sea snails, marine gastropod mollusks in the family Chilodontaidae (formerly in the family Trochidae).
Description The umbilicate or imperforate shell has a globose-turbinate shape. It is umbilicate or imperforate. The whorls are rounded and with spirally granose revolving ribs. The aperture is subcircular. The outer lip is thickened, and crenulate within. The columella shows a central tooth or a notch at the base. The operculum has few whorls that are rapidly increasing.Tryon (1889), Manual of Conchology XI, Academy of Natural Sciences, Philadelphia
Distribution These marine species occur in the Indo-Pacific.
Species Species within the genus Euchelus include: Euchelus alarconi Rehder, 1980 Euchelus asper (Gmelin, 1791) Euchelus atratus (Gmelin, 1791) Euchelus barbadensis Dall, 1927 Euchelus bermudensis Moolenbeek & Faber, 1989 Euchelus bitoi Nomura & Hatai, 1940 Euchelus circulatus (Anton, 1849) Euchelus dampierensis Jansen, 1994 Euchelus decora Poppe & Tagaro, 2016 Euchelus eucastus Dall, 1927 Euchelus guttarosea Dall, 1889 Euchelus horridus (Philippi, 1846) Euchelus hummelincki Moolenbeek & Faber, 1989 Euchelus mysticus Pilsbry, 1889 Euchelus oxytropis (Philippi, 1848) Euchelus persicus (E. von Martens, 1874) Euchelus polysarkon Vilvens, 2017 Euchelus pullatus Anton, 1848 Euchelus scaber (Linnaeus, 1758) Taxon inquirendum Euchelus maculosus Pease, 1863 Species brought into synonymy Euchelus (Herpetopoma) Pilsbry, 1890; synonym of Herpetopoma Pilsbry, 1890 Euchelus (Nevillia) H. Adams, 1868; synonym of Nevillia H. Adams, 1868 Euchelus alabastrum (Reeve, 1858); synonym of Euchelus asper (Gmelin, 1791) Euchelus alarconi Rehder, 1980: synonym of Herpetopoma alarconi (Rehder, 1980) Euchelus ampullus Tate, 1893; synonym of Vaceuchelus ampullus (Tate, 1893) Euchelus angulatus Pease, 1867; synonym of Vaceuchelus angulatus (Pease, 1867) Euchelus bellus Hutton, 1873; synonym of Herpetopoma bellum (Hutton, 1873) Euchelus bicinctus Philippi, 1849: synonym of Clanculus tonnerrei (G. Nevill & H. Nevill, 1874) Euchelus bourcierei Crosse, 1863: synonym of Herpetopoma instrictum (Gould, 1849) Euchelus bronni Dunker, 1860: synonym of Clanculus bronni Dunker, 1860 Euchelus corrugatus Pease, 1861: synonym of Herpetopoma corrugatum (Pease, 1861) Euchelus erythraeensis Sturany, 1903; synonym of Clanculus tonnerrei (G. Nevill & H. Nevill, 1874) Euchelus favosus Melvill & Standen, 1896; synonym of Vaceuchelus clathratus (A. Adams, 1853) Euchelus fischeri (Montrouzier in Souverbie & Montrouzier, 1866): synonym of Monodonta fischeri Montrouzier [in Souverbie & Montrouzier], 1866; synonym of Herpetopoma fischeri (Montrouzier [in Souverbie & Montrouzier], 1866); synonym of Herpetopoma exasperatum (A. Adams, 1853) Euchelus gemmula Turton, 1932; synonym of Vaceuchelus gemmula (Turton, 1932) Euchelus gemmatus (Gould, 1845): synonym of Herpetopoma gemmatum (Gould, 1845) Euchelus hachijoensis Pilsbry, 1904: synonym of Herpetopoma rubrum (A. Adams, 1851) Euchelus lamberti (Souverbie in Souverbie & Montrouzier, 1875): synonym of Tallorbis roseola G. Nevill & H. Nevill, 1869 Euchelus lischkei Pilsbry, 1904: synonym of Herpetopoma lischkei (Pilsbry, 1904) Euchelus midwayensis Habe & Kosuge, 1970: synonym of Danilia eucheliformis (Nomura & Hatai, 1940) Euchelus natalensis E. A. Smith, 1906; synonym of Vaceuchelus natalensis (E. A. Smith, 1906) Euchelus profundior May, 1915; synonym of Vaceuchelus profundior (May, 1915) Euchelus providentiae Melvill, 1909: synonym of Herpetopoma providentiae (Melvill, 1909) Euchelus quadricarinatus (Holten, 1802): synonym of Euchelus asper (Gmelin, 1791) Euchelus ringens Schepman, 1908; synonym of Herpetopoma ringens (Schepman, 1908) Euchelus ruber: synonym of Herpetopoma rubrum (A. Adams, 1853) Euchelus scabriusculus A. Adams & Angas, 1867; synonym of Herpetopoma scabriusculum (A. Adams & Angas, 1867) Euchelus scrobiculatus (Souverbie, 1886); synonym of Vaceuchelus scrobiculatus (Souverbie, 1866) Euchelus seychellarum G. Nevill & H. Nevill, 1869; synonym of Herpetopoma seychellarum (G. Nevill & H. Nevill, 1869) Euchelus smithi Dunker, R.W., 1882: synonym of Monilea smithi (Wood, 1828) Euchelus townsendianus Melvill & Standen, 1903; synonym of Clypeostoma townsendianum (Melvill & Standen, 1903) Euchelus xeniolum Melvill, 1918; synonym of Herpetopoma xeniolum (Melvill, 1918)
References
Vaught, K.C. (1989). A classification of the living Mollusca. American Malacologists: Melbourne, FL (USA). . XII, 195 pp