Phenacomargarites williamsae is a species of sea snail, a marine gastropod mollusk, in the family Calliostomatidae within the superfamily Trochoidea, the top snails, turban snails and their allies.[1][2]
The length of the shell attains 22.1 mm.
This marine species occurs off the Solomon Islands
Phenacomargarites williamsae is a species of sea snail, a marine gastropod mollusk, in the family Calliostomatidae within the superfamily Trochoidea, the top snails, turban snails and their allies.