Atlanta peronii
Atlanta peronii is a species of sea snail, a holoplanktonic marine gastropod mollusk in the family Atlantidae, as well as its typetaxon.
Distribution
This species is seen in South Korea, South and East China Sea region of Mainland China, as well as ocean regions around Taiwan.Description
The maximum recorded shell length is 11 mm.The shell is glassy-membranous, nearly circular, symmetrical, and coiled inward. It is umbilicated on both sides, broadly keeled, extremely thin, and translucent. There are three whorls, which are convex and smooth, and they remain clearly visible within the umbilicus on either side. The body whorl is furnished with a broad keel on the upper side and is slightly keeled on the lower side. The aperture is large and heart-shaped, with a small channel or groove at the front; the peristome is wavy and sharp.
The operculum is glassy, somewhat triangular, thin, translucent, and marked with fine lines.