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a genus of nonpoisonous snakes of the grass snake family. There are some 16 species, distributed in Southeast Asia.
There is one species in the USSR, the striped wolftooth(L. striatus), found in the southern part of Turkmenia, in Uzbekistan, and western Tadzhikistan. Length, up to 60 cm. The back is black, with light yellowish transverse stripes, and the belly is yellow. The snakes are active at night. They feed mainly on lizards.