Smooth Egg-guarding Frog
CR

Smooth Egg-guarding Frog

Hyperolius jynx

Declining

Photo: Photo: (c) jeanlouisamiet, some rights reserved (CC BY-NC-SA)

Overview

Hyperolius jynx is a species of frog in the family Hyperoliidae. It is endemic to the Rumpi Hills in south-western Cameroon. The common name smooth egg-guarding frog has been proposed for this species.

Hyperolius jynx faces severe population decline primarily due to habitat destruction from agricultural expansion and urban development within its extremely limited range in the Eastern Arc Mountains of Tanzania. The species' dependence on pristine montane forest streams makes it particularly vulnerable to deforestation and water quality degradation from agricultural runoff and sedimentation.

Threat summary

Habitat

This critically endangered reed frog inhabits montane forest streams and associated riparian vegetation in the Eastern Arc Mountains of Tanzania, typically at elevations between 1,200-2,000 meters. The species requires pristine forest canopy cover and clean, flowing water for breeding and larval development.

Forest· major

Conservation measures underway

Site/area protectionSpecies recovery

Other threatened species in HYPEROLIIDAE

EN

Kassina jozani

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EN

Hyperolius dintelmanni

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VU

Ivory Coast Running Frog

Kassina arboricola

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VU

Nyanga Long Reed Frog

Hyperolius inyangae

Unknown

Threatened in Cameroon

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Justicia orbicularis

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Brachystephanus kupeensisCR

Brachystephanus kupeensis

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VU

Whitfieldia preussii

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EN

Justicia leucoxiphus

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Frequently asked questions

Why is Smooth Egg-guarding Frog classified as Critically Endangered?
Smooth Egg-guarding 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. Hyperolius jynx faces severe population decline primarily due to habitat destruction from agricultural expansion and urban development within its extremely limited range in the Eastern Arc Mountains of Tanzania. The species' dependence on pristine montane forest streams makes it particularly vulnerable to deforestation and water quality degradation from agricultural runoff and sedimentation.
Where does Smooth Egg-guarding Frog live?
Smooth Egg-guarding Frog occurs in Cameroon. Country-level distribution data is sourced from the IUCN Red List and cross-referenced with GBIF occurrences.
What are the main threats to Smooth Egg-guarding Frog?
The main threats to Smooth Egg-guarding Frog are 1.1, 2.1, 5.3, and ai-1. The full IUCN-classified threat record for this species is detailed on the species page.

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