EN

Hirasea diplomphalus

Unknown

Overview

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

Hirasea diplomphalus faces severe habitat degradation from urban development and agricultural expansion across its limited range in Japan. The species' restricted distribution to specific forest microhabitats makes it particularly vulnerable to localized disturbances and climate-induced changes in moisture regimes. Invasive plant species are altering the understory composition of its native forest habitats, while pollution from nearby urban areas may be affecting soil chemistry critical for this terrestrial gastropod.

Threat summary

Habitat

This terrestrial snail inhabits moist deciduous and mixed forests with rich leaf litter and well-developed understory vegetation. It requires specific microhabitat conditions including stable moisture levels and organic soil composition typical of temperate Japanese woodlands.

Other threatened species in ENDODONTIDAE

CR

Cookeconcha contorta

Unknown
CR

Thaumatodon corrugata

Unknown
EN

Thaumatodon hystricelloides

Unknown
CR

Endodonta apiculata

Unknown

Frequently asked questions

Why is Hirasea diplomphalus classified as Endangered?
Hirasea diplomphalus is classified as Endangered — facing a very high risk of extinction in the wild — because population numbers are declining steeply and key habitats are under sustained pressure. Hirasea diplomphalus faces severe habitat degradation from urban development and agricultural expansion across its limited range in Japan. The species' restricted distribution to specific forest microhabitats makes it particularly vulnerable to localized disturbances and climate-induced changes in moisture regimes. Invasive plant species are altering the understory composition of its native forest habitats, while pollution from nearby urban areas may be affecting soil chemistry critical for this terrestrial gastropod.
Where does Hirasea diplomphalus live?
Hirasea diplomphalus occurs in across multiple regions. Country-level distribution data is sourced from the IUCN Red List and cross-referenced with GBIF occurrences.
What are the main threats to Hirasea diplomphalus?
The main threats to Hirasea diplomphalus 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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