Petaloconchus erectus is a species of sea snail, a marine gastropod mollusk in the family Vermetidae, the worm snails or worm shells.

Description The maximum recorded shell length is 40 mm.Welch J. J. (2010). "The "Island Rule" and Deep-Sea Gastropods: Re-Examining the Evidence". PLoS ONE 5(1): e8776. .

Habitat Minimum recorded depth is 2 m. Maximum recorded depth is 1400 m.

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