Overview
The Short-tailed Gymnure (Hylomys suillus), frequently termed the lesser gymnure, is an enigmatic, ancient small mammal inhabiting the dense, misty montane forests of Southeast Asia. Belonging to the family Erinaceidae alongside true spiny hedgehogs, this compact eulipotyphlan represents an evolutionary relict, retaining morphological features remarkably similar to early primitive placental mammals that scuttled through prehistoric forest understories millions of years ago.
Biology and Physical Characteristics
Unlike their spiny hedgehog cousins, gymnures lack protective quills, possessing instead a dense, velvety coat of reddish-brown to dark slate-gray fur with pale buff highlights underneath. The Short-tailed Gymnure features an elongated, mobile snout lined with sensitive vibrissae, small rounded ears, and a notably truncated, nearly naked tail measuring barely an inch in length. Its skull is equipped with sharp, specialized insectivorous teeth engineered to pierce the tough chitinous exoskeletons of beetles and centipedes. When threatened, it secretes a sharp, musky garlic-like odor from specialized anal scent glands to repel mammalian and reptilian predators.
Behavior and Ecology
Primarily terrestrial and active during both twilight and daytime in shaded forest gullies, Hylomys suillus spends its life foraging among decaying damp leaf litter and fallen rotten logs. It uses its sensitive, probing snout to root through humus, rapidly excavating earthworms, grubs, and subterranean invertebrates. Breeding occurs year-round, with females constructing small spherical nests of dry leaves and moss beneath tree roots or fallen logs, typically giving birth to two or three altricial young.
Conservation and Human Impact
Assessed as Least Concern by the IUCN, the Short-tailed Gymnure boasts a wide geographical distribution across several national parks and montane protected reserves throughout Indochina and the Sunda region. The species remains relatively secure in higher-elevation cloud forests, though ongoing lowland deforestation and agricultural terracing pose localized challenges.
Interesting Factoid
Despite being closely related to spiny hedgehogs, the Short-tailed Gymnure completely lacks quills and instead defends itself against predators by blasting a pungent, foul garlic-like musk from scent glands near its tail.
Last updated: October 2026