Petaloconchus keenae is a worm snail common in intertidal and subtidal areas in Hawaiʻi and the tropical Pacific.

[1] This species is common in intertidal and subtidal areas in Hawaiʻi and the tropical Pacific.

It is found in the Central Pacific: Guam and Hawaii.

Petaloconchus keenae have typically coiled adult shells as seen on smooth surfaces and irregularly coiled adult shells.

The shell harbors in the anterior part of the relatively small soft body, which is able to retreat wholly in the shell.