Uttleya williamsi is a species of sea snail, a marine gastropod mollusk, in the family Muricidae, the murex snails or rock snails.MolluscaBase (2018). Uttleya williamsi Powell, 1952. Accessed through: World Register of Marine Species at: http://www.marinespecies.org/aphia.php?p=taxdetails&id=408278 on 2019-01-06
Distribution This species occurs in New Zealand Exclusive Economic Zone.
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