Cerion nanus
CR

Cerion nanus

Unknown

Photo: (c) fionaryan, some rights reserved (CC BY-NC)

Overview

Cerion nanus is a species of medium-sized air-breathing land snail, a terrestrial pulmonate gastropod in the family Cerionidae.

Cerion nanus faces severe threats from habitat destruction due to coastal development and tourism infrastructure expansion across its limited range in the Bahamas. The species' restricted distribution to specific limestone coastal areas makes it extremely vulnerable to sea-level rise and increased storm intensity associated with climate change. Introduced species and human disturbance from recreational activities further compound the pressures on remaining populations.

Threat summary

Habitat

This critically endangered land snail inhabits limestone coastal areas, rocky shores, and low-lying coastal vegetation zones in the Bahamas. It typically occurs in areas with sparse vegetation and calcareous substrates that provide the calcium carbonate necessary for shell development.

Frequently asked questions

Why is Cerion nanus classified as Critically Endangered?
Cerion nanus is classified as Critically Endangered — facing an extremely high risk of extinction in the wild — because population sizes are very small, declining sharply, or restricted to a tiny range. Cerion nanus faces severe threats from habitat destruction due to coastal development and tourism infrastructure expansion across its limited range in the Bahamas. The species' restricted distribution to specific limestone coastal areas makes it extremely vulnerable to sea-level rise and increased storm intensity associated with climate change. Introduced species and human disturbance from recreational activities further compound the pressures on remaining populations.
Where does Cerion nanus live?
Cerion nanus occurs in across multiple regions. Country-level distribution data is sourced from the IUCN Red List and cross-referenced with GBIF occurrences.
What are the main threats to Cerion nanus?
The main threats to Cerion nanus are ai-1, ai-2, ai-3, and ai-4. The full IUCN-classified threat record for this species is detailed on the species page.

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