Helminthoglypta walkeriana
CR

Helminthoglypta walkeriana

Unknown

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

Overview

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

Helminthoglypta walkeriana faces severe threats from urban development and habitat fragmentation across its limited Southern California range. The species' restricted distribution makes it particularly vulnerable to localized disturbances, while introduced plant species alter the native vegetation communities it depends upon. Fire suppression activities and recreational trampling in remaining habitat patches further compound population pressures.

Threat summary

Habitat

This terrestrial gastropod inhabits coastal sage scrub and chaparral communities in Southern California, typically found among native shrubs and leaf litter. The species requires specific moisture conditions and native plant associations that provide both food sources and shelter from desiccation.

TERRESTRIAL· major

Frequently asked questions

Why is Helminthoglypta walkeriana classified as Critically Endangered?
Helminthoglypta walkeriana 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. Helminthoglypta walkeriana faces severe threats from urban development and habitat fragmentation across its limited Southern California range. The species' restricted distribution makes it particularly vulnerable to localized disturbances, while introduced plant species alter the native vegetation communities it depends upon. Fire suppression activities and recreational trampling in remaining habitat patches further compound population pressures.
Where does Helminthoglypta walkeriana live?
Helminthoglypta walkeriana 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 Helminthoglypta walkeriana?
The main threats to Helminthoglypta walkeriana 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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