Murici Spinythumb Frog
CR

Murici Spinythumb Frog

Crossodactylus dantei

Stable

Photo: Wikimedia Commons (CC) via https://en.wikipedia.org/wiki/Crossodactylus_dantei

Overview

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

Crossodactylus dantei faces severe threats from habitat destruction due to urban expansion and agricultural conversion in its extremely limited range in southeastern Brazil. The species is particularly vulnerable to water pollution and sedimentation from nearby human activities, which degrade the pristine stream environments essential for its reproduction. Climate change poses an additional threat through altered precipitation patterns that could affect the delicate hydrological balance of its montane forest streams.

Threat summary

Habitat

This critically endangered frog inhabits pristine rocky streams and adjacent riparian vegetation in Atlantic Forest remnants of southeastern Brazil's mountainous regions. The species requires clean, well-oxygenated water with specific temperature and flow characteristics found only in undisturbed montane forest ecosystems.

Forest· major

Conservation measures underway

Species managementSpecies recoveryEx-situ conservationLegislationCompliance and enforcement

Other threatened species in HYLODIDAE

VU

Ornate Tree Toad

Hylodes ornatus

Unknown
CR

Rio Spinythumb Frog

Crossodactylus grandis

Unknown
CR

Crossodactylus franciscanus

Unknown
EN

Crossodactylus timbuhy

Unknown

Frequently asked questions

Why is Murici Spinythumb Frog classified as Critically Endangered?
Murici Spinythumb Frog 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. Crossodactylus dantei faces severe threats from habitat destruction due to urban expansion and agricultural conversion in its extremely limited range in southeastern Brazil. The species is particularly vulnerable to water pollution and sedimentation from nearby human activities, which degrade the pristine stream environments essential for its reproduction. Climate change poses an additional threat through altered precipitation patterns that could affect the delicate hydrological balance of its montane forest streams.
Where does Murici Spinythumb Frog live?
Murici Spinythumb Frog 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 Murici Spinythumb Frog?
The main threats to Murici Spinythumb Frog are 2.1, 2.3, 5.1, and 5.3. The full IUCN-classified threat record for this species is detailed on the species page.

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