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brown snake, any of several species of snakes named for their usual predominating colour. In New Guinea and Australia the name brown snake is applied to approximately 10 species of the genus Pseudonaja. These venomous snakes are slender small-headed members of the cobra family, Elapidae. In North America the name is given to snakes in the genus Storeria, a nonvenomous group in the family Colubridae. Brown snakes of New Guinea and Australia range from 40...