Taiwan Salamander

A small, slender salamander typically measuring 3.5–5.5 inches (9–14 cm) in total length. Body is elongate and gracile with relatively short limbs and a long, laterally compressed tail. Dorsal coloration is typically dark brown to blackish-brown, often with a reddish or copper-toned vertebral stripe or line running from the head to the tail base. Lateral surfaces are slightly paler than the dorsum, often with a subtle lighter stripe along the upper flanks. Costal grooves are prominent and well-defined, typically numbering 13–14 on each side. Dorsolateral folds are absent. The head is small and triangular with a pointed snout. Eyes are small and lidless. Skin is smooth and moist. A key diagnostic feature is the presence of lunules (small pale crescents) above each limb insertion, which are particularly evident in breeding males. Ventral surface is pale tan to grayish with darker mottling. Males develop distinctive features during breeding season, including an enlarged vent and developed tail fin. Primarily inhabits cool, montane forest streams and seepage areas in Taiwan's central highlands, particularly at elevations of 1000–2500 meters (3280–8200 feet), where it frequents the edges of clear mountain streams, spring runs, and saturated vegetation near flowing water. Diet consists of small invertebrates, including insects, mites, and other arthropods captured on the forest floor and near water's edge.