Socorro Snail
CR

Socorro Snail

Pyrgulopsis neomexicana

Declining

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

Overview

The Socorro springsnail, scientific name Pyrgulopsis neomexicana, is an endangered species of minute freshwater snail with a gill and an operculum, an aquatic gastropod mollusk or micromollusk in the family Hydrobiidae, the mud snails.

Pyrgulopsis neomexicana faces severe threats from groundwater depletion and aquifer drawdown in its limited spring habitats across New Mexico. Agricultural irrigation, municipal water extraction, and drought conditions have reduced spring flow rates, directly impacting the species' survival. The snail's extreme habitat specificity to individual spring systems makes it particularly vulnerable to hydrological changes, with some populations already experiencing local extirpations due to spring desiccation.

Threat summary

Habitat

This critically endangered freshwater snail is endemic to isolated spring systems and their associated pools in New Mexico's desert regions. The species requires constant spring flow with specific water chemistry and temperature conditions, typically inhabiting shallow areas with rocky substrates and aquatic vegetation.

FRESHWATER· major

Conservation measures underway

Site/area protectionSite/area managementEx-situ conservation

Frequently asked questions

Why is Socorro Snail classified as Critically Endangered?
Socorro Snail 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. Pyrgulopsis neomexicana faces severe threats from groundwater depletion and aquifer drawdown in its limited spring habitats across New Mexico. Agricultural irrigation, municipal water extraction, and drought conditions have reduced spring flow rates, directly impacting the species' survival. The snail's extreme habitat specificity to individual spring systems makes it particularly vulnerable to hydrological changes, with some populations already experiencing local extirpations due to spring desiccation.
Where does Socorro Snail live?
Socorro Snail occurs in Mexico, and 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 Socorro Snail?
The main threats to Socorro Snail are 7.2, 8.1, 9.3.4, and ai-1. The full IUCN-classified threat record for this species is detailed on the species page.

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