Nerita undata

Habitat: rocky cliffs (Ruwa, 1984 <109>). Up to 4 cm, with radial ridges on the shell surface; columella with three teeth. Pale in colour with variable darker markings, sometimes uniformly bluish-black, pale interior.[1]

This marine species occurs in the Indo-Pacific. (Richmond, 1997) and off Papua New Guinea.

Habitat: littoral fringe rocks.

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• Dekker, H. (2000). The Neritidae from the circumarabian seas. Vita Marina. 47(2): 29-64

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