AT A GLANCE
- Common Name: Common Sun Skink
- Scientific Name: Eutropis multifasciata
- Category: Reptiles
- Subcategory: Lizards
- Range: South and Southeast Asia, from eastern India and southern China through Myanmar, Thailand, Malaysia, Singapore, Indonesia, and the Philippines; introduced to Taiwan and Florida
- Habitat Type: Tropical rainforest edges, sunny clearings, secondary scrub, agricultural fields, coconut plantations, and suburban gardens with abundant leaf litter
- IUCN Red List Status: Least Concern
- Lifespan: 5 to 8 years
- Diet: Carnivorous/Insectivorous (crickets, grasshoppers, roaches, spiders, caterpillars, beetles, and earthworms)
- Average Size/Weight: Total length 25 to 35 cm; snout-to-vent length 10 to 14 cm; weight 40 to 80 g
- Key Defining Feature: Heavy-bodied, highly active sun-loving lizard with strongly multi-keeled bronze scales, featuring vivid fiery-orange or lemon-yellow flank bands in breeding males
Overview
The Common Sun Skink (Eutropis multifasciata), also known as the Many-lined Sun Skink or East Indian Brown Mabuya, is one of the most familiar, abundant, and conspicuous lizards across Southeast Asia. A dedicated heliotherm (sun-worshiper), this heavy-set, glossy reptile is seen scurrying noisily through dry fallen leaves and basking on fallen logs in tropical gardens, rubber estates, and forest margins. When sunlight hits its multi-keeled scales, it gleams with a radiant bronze sheen, punctuated in adult males by blazing flank stripes of fiery orange.
Biology and Physical Characteristics
Eutropis multifasciata is a robust, heavily muscled skink with a stout cylindrical torso, strong clawed legs, and a thick tail that is slightly longer than its body. Its scales are unique: each dorsal scale possesses three distinct longitudinal keels (ridges) that refract light, creating an intense, polished bronze-to-golden metallic iridescence. Dorsal coloration is typically dark olive-bronze to chestnut-brown, marked with fine black longitudinal lines. During the breeding season, adult males develop dazzling lateral coloration: the sides of the neck and flanks glow with a broad, vibrant stripe of bright lemon-yellow, neon tangerine, or fiery vermilion-orange.
Behavior and Ecology
True to its name, the Common Sun Skink is active during the warmest hours of the day, hunting through sunny clearings and garden edges. It moves with a characteristic rustling rush, chasing down crickets, spiders, and grasshoppers before overpowering them with strong, crushing jaws. Highly territorial, males engage in dramatic displays, flattening their bodies to flash their radiant orange flanks at competitors. The species is viviparous (giving birth to live young): after a three-month gestation, the female gives birth to five to ten fully formed, active juvenile skinks that immediately scurry away to fend for themselves.
Conservation and Human Impact
The Common Sun Skink is classified as Least Concern on the IUCN Red List. It is an exceptionally adaptable ecological generalist that thrives in human-modified landscapes, city parks, agricultural clearings, and degraded secondary forests. Its prolific breeding and tolerance for varied habitats have enabled it to establish successful introduced populations in Taiwan and southern Florida.
Interesting Factoid
The Common Sun Skink’s scales have three tiny ridges each that reflect sunlight like miniature mirrors, and during mating season, the male’s neck and sides turn bright glowing neon-orange to attract females.