Subcancilla leonardhilli is a species of sea snail, a marine gastropod mollusk, in the family Mitridae, the miters or miter snails.MolluscaBase (2018). Subcancilla leonardhilli Petuch, 1987. Accessed through: World Register of Marine Species at: http://www.marinespecies.org/aphia.php?p=taxdetails&id=533460 on 2019-01-04Petuch E.J. (1987). New Caribbean Molluscan Faunas. Charlottesville, Virginia: The Coastal Education and Research Foundation. 154 pp., 29 pls; addendum 2 pp., 1 pl.

Description Original description: "Shell elongated, fusiform; body whorl with 12 large, raised, evenly-spaced cords; 1 fine spiral thread between each pair of cords; whorls rounded; spire whorls with 3 large cords; columella with 3 large plications; color pale yellow with wide, pale brown axial flammules; interior of aperture pale yellow-white."Petuch, E.J. 1987-New Caribbean Molluscan Faunas, page 106. Publ: CERF

Distribution Locus typicus: "Golfo de Triste, off Puerto Cabello, Venezuela."Petuch, E.J. 1987-New Caribbean Molluscan Faunas, page 106. Publ: CERF

This species occurs in Venezuela.

References