Superfamily Trochoidea Subfamily Margarellinae Rank Species | ||
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Similar Calliostomatidae, Nacella, Sterechinus neumayeri, Laternula elliptica, Trochoidea | ||
Margarella antarctica is a species of sea snail, a marine gastropod mollusk in the family Calliostomatidae, the top snails.
Contents
Distribution
This marine species occurs off South Orkney Islands, South Shetland Islands; Antarctic Peninsula, Bellingshausen Sea
Description
The maximum recorded shell length is 12.5 mm.
The orbicular, deeply umbilicated shell has an obtuse-conical shape. It contains four convex whorls, the last of which is adorned only by growth lines. The oblique aperture is sub-circular and pearly inside. In, adults its edges are joined by a callus . The operculum is polygyrous spiral. The color of the shell is bluish gray or greenish.
Habitat
Minimum recorded depth is 0 m. Maximum recorded depth is 24 m.
References
Margarella antarctica Wikipedia(Text) CC BY-SA