Filodrillia thornleyana is a species of sea snail, a marine gastropod mollusk in the family Borsoniidae.WoRMS (2015). Filodrillia thornleyana Laseron, 1954. In: MolluscaBase (2015). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php/aphia.php?p=taxdetails&id=433817 on 2016-03-07
