VU

Opisthostoma michaelis

Stable

Overview

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

Opisthostoma michaelis faces severe pressure from limestone quarrying activities that directly destroy its cave and karst habitat in Peninsular Malaysia. The species' extremely restricted range makes it particularly vulnerable to habitat modification, as entire populations can be eliminated by single quarrying operations. Urban development and infrastructure expansion in the region further fragment the remaining suitable limestone formations.

Threat summary

Habitat

This micro-endemic land snail inhabits limestone caves and karst formations in the tropical forests of Peninsular Malaysia. It requires the specific microclimate conditions found within cave systems and limestone crevices, where humidity levels remain consistently high.

Forest· majorRocky areas· major

Other threatened species in DIPLOMMATINIDAE

EN

Diplommatina pyramis

Unknown
CR

Opisthostoma perspectivum

Declining
VU

Opisthostoma bihamulatum

Stable
CR

Opisthostoma fraternum

Declining

Threatened in Malaysia

Acropora hemprichiiEN

Acropora hemprichii

Declining
VU

Podocarpus ridleyi

Declining
EN

Benstonea saint-johnii

Unknown
VU

Hopea coriacea

Declining

Frequently asked questions

Why is Opisthostoma michaelis classified as Vulnerable?
Opisthostoma michaelis 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. Opisthostoma michaelis faces severe pressure from limestone quarrying activities that directly destroy its cave and karst habitat in Peninsular Malaysia. The species' extremely restricted range makes it particularly vulnerable to habitat modification, as entire populations can be eliminated by single quarrying operations. Urban development and infrastructure expansion in the region further fragment the remaining suitable limestone formations.
Where does Opisthostoma michaelis live?
Opisthostoma michaelis occurs in Malaysia. Country-level distribution data is sourced from the IUCN Red List and cross-referenced with GBIF occurrences.
What are the main threats to Opisthostoma michaelis?
The main threats to Opisthostoma michaelis 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.

Get weekly conservation intelligence

One short digest a week of the most striking species and country data we ship, plus breaking conservation news paired with our database where it matters.

Free, no spam. One-click unsubscribe in every email.