
Cryptic Uiryeong Salamander
Hynobius perplicatus
Quick ID
Field Notes
A small, slender salamander typically measuring 3.5–5.2 inches (9–13 cm) in total length. Body is elongate and gracile with short limbs. Dorsal coloration is dark brown to grayish-brown, often with a subtle reddish or coppery tint along the vertebral region. The dorsum frequently exhibits fine reticulation or a finely flecked pattern with darker pigmentation, creating a cryptic, uniform appearance that blends readily with leaf litter and moist substrates. Dorsolateral folds are present but less prominent than in some congeners. The head is relatively small and pointed. Costal grooves are distinct, typically numbering 14–15 between the front and hind limbs. Limbs are short and weak. The tail is elongate and comprises approximately 40–50% of total length. Skin is smooth and moist. Ventral surface is pale gray to cream, often with fine dark speckles or mottling. A key diagnostic feature is the cryptic coloration and overall uniformity of patterning, which distinguishes this species from more boldly marked congeners. Inhabits cool, moist forest floors in montane and submontane regions, associated with dense moss, leaf litter, fallen logs, and seepage areas. Strictly terrestrial and rarely encountered due to its cryptic habits and preference for deeply humid microhabitats. Diet consists of small arthropods, including mites, springtails, and small insects.
Photos
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Range
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