Corpulent Hornsnail
CR

Corpulent Hornsnail

Pleurocera corpulenta

Declining

Photo: Wikimedia Commons (CC) via https://en.wikipedia.org/wiki/Corpulent_hornsnail

Overview

A detailed profile for this species is sourced from the IUCN Red List of Threatened Species as assessments become available.

Pleurocera corpulenta faces severe threats from habitat degradation and water quality deterioration in its limited freshwater stream systems. Dam construction and water diversions have altered natural flow regimes critical for this species' survival, while agricultural runoff and urban development have introduced pollutants that compromise water chemistry. The species' extremely restricted range makes it particularly vulnerable to localized environmental changes, with entire populations at risk from single disturbance events.

Threat summary

Habitat

This freshwater gastropod inhabits clean, well-oxygenated streams and rivers with rocky or gravel substrates in the southeastern United States. The species requires stable water chemistry and consistent flow patterns, typically found in headwater streams and spring-fed systems with minimal human disturbance.

Wetlands (inland) - Permanent rivers/streams· major

Conservation measures underway

Species recoverySpecies reintroductionEx-situ conservation

Other threatened species in PLEUROCERIDAE

EN

Io fluvialis

Unknown
VU

Lithasia duttoniana

Unknown
VU

Lithasia salebrosa

Unknown
VU

Pleurocera curta

Unknown

Frequently asked questions

Why is Corpulent Hornsnail classified as Critically Endangered?
Corpulent Hornsnail 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. Pleurocera corpulenta faces severe threats from habitat degradation and water quality deterioration in its limited freshwater stream systems. Dam construction and water diversions have altered natural flow regimes critical for this species' survival, while agricultural runoff and urban development have introduced pollutants that compromise water chemistry. The species' extremely restricted range makes it particularly vulnerable to localized environmental changes, with entire populations at risk from single disturbance events.
Where does Corpulent Hornsnail live?
Corpulent Hornsnail 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 Corpulent Hornsnail?
The main threats to Corpulent Hornsnail 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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