About Atractus trilineatus Wagler, 1828
Atractus trilineatus Wagler, 1828 can reach a total length of 225 mm (8+3⁄4 inches). This total length includes a short tail that measures 15 mm (1⁄2 inch). On its dorsal side, it is brown with three or four darker longitudinal stripes. On its ventral side, it is either uniformly white, or has a small number of brown dots. Its smooth dorsal scales are arranged in 15 rows, and its anal plate is entire. This species has between 125 and 150 ventrals, and only 11 to 19 subcaudals. Atractus trilineatus occurs in northern South America, including the Caribbean island of Trinidad. Its preferred natural habitats are forest and savanna, found at altitudes ranging from sea level up to 500 m (1,600 ft). It has also been recorded in agricultural and horticultural areas. Atractus trilineatus is oviparous. Females lay eggs in March, May, and August, and clutch sizes range from three to five eggs.