Helminthoglypta callistoderma
Overview
A detailed profile for this species is sourced from the IUCN Red List of Threatened Species as assessments become available.
Helminthoglypta callistoderma faces severe population decline due to habitat destruction from urban development and agricultural expansion across its limited Southern California range. The species is particularly vulnerable to drought conditions and altered fire regimes that degrade the coastal sage scrub and chaparral communities it depends upon. Invasive plant species further threaten native vegetation structure, while collection pressure from shell enthusiasts has historically impacted accessible populations.
Habitat
This terrestrial gastropod inhabits coastal sage scrub, chaparral, and oak woodland communities in Southern California, typically found under rocks, logs, and leaf litter in areas with moderate moisture retention. The species requires specific microhabitat conditions with adequate shelter and calcium-rich soils for shell development.
Other threatened species in HELMINTHOGLYPTIDAE
Threatened in United States
Frequently asked questions
Why is Helminthoglypta callistoderma classified as Endangered?
Where does Helminthoglypta callistoderma live?
What are the main threats to Helminthoglypta callistoderma?
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