VU

Xerarionta tryoni

Unknown

Overview

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

Xerarionta tryoni faces severe habitat degradation from urban development and agricultural expansion across its limited coastal California range. The species is particularly vulnerable to drought conditions and altered fire regimes that affect the chaparral and coastal sage scrub communities it depends upon. Invasive plant species further degrade habitat quality by outcompeting native vegetation that provides essential shelter and food resources.

Threat summary

Habitat

This terrestrial gastropod inhabits coastal chaparral, sage scrub, and oak woodland communities in southern California. It typically occurs in areas with native shrub cover that provides moisture retention and protection from temperature extremes.

TERRESTRIAL· major

Other threatened species in HELMINTHOGLYPTIDAE

VU

Monadenia circumcarinata

Unknown
CR

Micrarionta feralis

Unknown
Xerarionta redimitaVU

Xerarionta redimita

Unknown
VU

Monadenia setosa

Unknown

Threatened in Mexico

EN

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Calidris ferruginea

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Artichoke CoralCR

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Thamnophis scaligerVU

Thamnophis scaliger

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Frequently asked questions

Why is Xerarionta tryoni classified as Vulnerable?
Xerarionta tryoni is classified as Vulnerable because the population is declining and the species faces a high risk of extinction in the medium-term future if current pressures continue. Xerarionta tryoni faces severe habitat degradation from urban development and agricultural expansion across its limited coastal California range. The species is particularly vulnerable to drought conditions and altered fire regimes that affect the chaparral and coastal sage scrub communities it depends upon. Invasive plant species further degrade habitat quality by outcompeting native vegetation that provides essential shelter and food resources.
Where does Xerarionta tryoni live?
Xerarionta tryoni 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 Xerarionta tryoni?
The main threats to Xerarionta tryoni 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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