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Nerita planospira

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Nerita planospira (Anton, 1839)

Family Name: Neritidae
Taxonomic Group: Invertebrates (Mollusc)
Common Name: Flat-spired Nerite

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Description

Size 22 mm
Description Tightly coiled, thick and roughly ridged snailshell, with the shell mottled black and cream; the inner surface is smooth and white, with a toothed shelf protecting the entrance.

Ecology, Habitat & Location

Ecological Notes Mature mangroves on offshore islands, occurring on mangrove tree trunks and aerial roots.
Habitats Mangroves
Distribution Indo-West Pacific.

Conservation

Trends & Threats Degradation of habitat.
Scientific Interest & Potential Value One of the rarest nerites in Singapore.
Conservation Notes This is one of the rarest of several species of Nerita found along the shores of singapore. Abundant in the 1960s, populations have declined drmatically with changes in habitat. The remaining mangroves that are protected can form a secure home for this species.

Status

Species Status Native
Singapore Red Data Book Status Near Threatened (NT) [3rd Edition]

Photos

Images

References

References

Davison G.W.H., Gan J.W.M., Huang D., Hwang W.S., Lum S.K.Y., Yeo D.C.J. (eds.). 2024. The Singapore Red Data Book: Red Lists of Singapore Biodiversity, Third Edition. National Parks Board, Singapore.


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Species record last updated on: 10 November 2026.
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