Laevityphis muticus is an extinct species of sea snail, a marine gastropod mollusk, in the family Muricidae, the murex snails or rock snails.MolluscaBase (2018). Laevityphis muticus (J. de C. Sowerby, 1834) †. Accessed through: World Register of Marine Species at: http://www.marinespecies.org/aphia.php?p=taxdetails&id=1048559 on 2019-01-06
References
External links Sowerby, J. de C. (1826-1835). The mineral conchology of Great Britain; or coloured figures and descriptions of those remains of testaceous animals or shells, which have been preserved at various times and depths in the Earth. Vol. VI. London, privately published, pp. 1-230 + index