Cystiscus havannensis is a species of very small sea snail, a marine gastropod mollusk or micromollusk in the family Cystiscidae.
Description
The size of the shell attains 1.73 mm. Shell is minute, hyaline, thin, translucent white, glossy and smooth. It has a low, rounded spire with 2 whorls tapering to the base. Its head and tentacles are opaque orange. Distribution This marine species occurs off Vanuatu in very shallow, muddy pass with algae growth on the dead coral.
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