Megalobulimus grandis
CR

Megalobulimus grandis

Unknown

Photo: no rights reserved, uploaded by Monkey Safari Tur

Overview

Megalobulimus grandis, also known as the Brazilian land snail, is a species of air-breathing land snail, a terrestrial gastropod mollusk in the family Strophocheilidae. This species is endemic to Brazil.

Megalobulimus grandis faces severe population decline primarily due to habitat destruction from agricultural expansion and urban development across its limited range in southeastern Brazil. The species is particularly vulnerable to collection pressure for the ornamental shell trade, as its large size makes it highly sought after by collectors. Fragmentation of remaining forest patches has isolated populations, reducing genetic diversity and limiting dispersal opportunities for this slow-moving terrestrial gastropod.

Threat summary

Habitat

This large terrestrial snail inhabits Atlantic Forest remnants in southeastern Brazil, particularly favoring humid forest floors with rich leaf litter and decaying organic matter. The species requires well-preserved forest environments with stable moisture levels and minimal human disturbance.

Other threatened species in STROPHOCHEILIDAE

CR

Hirinaba curytibana

Unknown
EN

Megalobulimus fragilion

Unknown
EN

Megalobulimus parafragilior

Unknown
VU

Gonyostomus insularis

Unknown

Frequently asked questions

Why is Megalobulimus grandis classified as Critically Endangered?
Megalobulimus grandis 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. Megalobulimus grandis faces severe population decline primarily due to habitat destruction from agricultural expansion and urban development across its limited range in southeastern Brazil. The species is particularly vulnerable to collection pressure for the ornamental shell trade, as its large size makes it highly sought after by collectors. Fragmentation of remaining forest patches has isolated populations, reducing genetic diversity and limiting dispersal opportunities for this slow-moving terrestrial gastropod.
Where does Megalobulimus grandis live?
Megalobulimus grandis 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 Megalobulimus grandis?
The main threats to Megalobulimus grandis 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.