harlequin snake

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Related to harlequin snake: coral snake

har´le`quin snake`

n.1.any of several venomous New World snakes brilliantly banded in red and black and either yellow or white, especially the eastern coral snake, a small poisonous snake (Micrurus fulvius or Elaps fulvius), ringed with red and black, found in the Southeastern United States. They are widely distributed in Southern and Central America;
Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.