Overview
The Sardinian Brook Salamander (Euproctus platycephalus), known locally as the ‘Euprotto sardo,’ is a rare, relict semi-aquatic salamander endemic exclusively to the rugged granite mountain streams of the island of Sardinia, Italy. Perfectly adapted to cold, torrential alpine waters, this endangered amphibian possesses a flattened head and body that allow it to anchor beneath stones in torrential currents, acting as a critical bioindicator for pure Mediterranean river ecosystems.
Biology and Physical Characteristics
Euproctus platycephalus has an extremely flattened, shovel-shaped head and a streamlined body covered in fine granular tubercles. Its coloration ranges from olive-grey to brown, often mottled with rust-colored or yellowish spots, accented by a narrow yellowish or reddish vertebral stripe down its back. Crucially, like many torrent-dwelling salamanders, its lungs are strongly reduced; it relies primarily on cutaneous respiration through its moist, vascularized skin and bucco-pharyngeal mucosa to absorb oxygen from turbulent, cold mountain streams.
Behavior and Ecology
The species is primarily nocturnal and aquatic, foraging along the rocky bottoms of clear mountain pools for mayfly, caddisfly, and stonefly larvae. During Mediterranean summer droughts when mountain brooks reduce to isolated pools, salamanders take refuge deep in damp rock crevices and subterranean springs. Courtship is unique: the male uses his muscular jaws to grasp the female’s body or tail, transferring a spermatophore with his cloaca while both animals remain anchored to granite riverbeds.
Conservation and Human Impact
The Sardinian Brook Salamander is classified as Endangered by the IUCN, having suffered dramatic range contractions over recent decades. Critical threats include water extraction for agriculture and tourism, deforestation that elevates stream temperatures, and the introduction of predatory non-native trout that prey on salamander larvae. Regional parks in the Gennargentu and Limbara mountain ranges now protect key watersheds to ensure its survival.
Interesting Factoid
To survive in raging mountain rapids without floating to the surface, the Sardinian Brook Salamander has evolved nearly non-existent lungs, absorbing oxygen almost entirely through its skin so that it remains naturally heavy enough to crawl on the riverbed.
Last updated: October 2026