CR

Somatogyrus hendersoni

Unknown

Overview

The fluted pebblesnail, scientific name Somatogyrus hendersoni, is a species of very small freshwater snail with an operculum, an aquatic gastropod mollusc in the family Lithoglyphidae. This species is endemic to Alabama in the United States. Its natural habitat is the Coosa River, but it has not been collected since the river was impounded.

Somatogyrus hendersoni faces severe threats from groundwater depletion and contamination in its limited spring habitat range. Urban development and agricultural activities have altered local hydrology, reducing water flow and quality in the artesian springs this species depends upon. Water extraction for human use has lowered water tables, while chemical runoff from surrounding land use introduces pollutants that degrade the delicate spring ecosystem chemistry essential for this gastropod's survival.

Threat summary

Habitat

This critically endangered freshwater gastropod is endemic to artesian springs and spring-fed streams in limited areas of the southeastern United States. It requires clean, cool, well-oxygenated spring water with specific mineral content and stable temperatures year-round.

FRESHWATER· major

Frequently asked questions

Why is Somatogyrus hendersoni classified as Critically Endangered?
Somatogyrus hendersoni 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. Somatogyrus hendersoni faces severe threats from groundwater depletion and contamination in its limited spring habitat range. Urban development and agricultural activities have altered local hydrology, reducing water flow and quality in the artesian springs this species depends upon. Water extraction for human use has lowered water tables, while chemical runoff from surrounding land use introduces pollutants that degrade the delicate spring ecosystem chemistry essential for this gastropod's survival.
Where does Somatogyrus hendersoni live?
Somatogyrus hendersoni occurs in United States. Country-level distribution data is sourced from the IUCN Red List and cross-referenced with GBIF occurrences.
What are the main threats to Somatogyrus hendersoni?
The main threats to Somatogyrus hendersoni 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.

Get weekly conservation intelligence

One short digest a week of the most striking species and country data we ship, plus breaking conservation news paired with our database where it matters.

Free, no spam. One-click unsubscribe in every email.