Melanistic diversity in the Maritime Gartersnake, Thamnophis sirtalis pallidulus, in Nova Scotia, Canada

John Gilhen, Fred W. Scott

Abstract


We describe an unusual diversity of melanistic conditions in populations of the Maritime Gartersnake, Thamnophis sirtalis pallidulus, in Nova Scotia: pure melanism, melanism, nigrismus (predominantly melanistic), abundismus (mosaic melanism). This variability is widespread in Nova Scotia, and it includes coastal islands.

Keywords


Maritime Gartersnake; Thamnophis sirtalis pallidulus; pure melanism; melanism; nigrismus; predominantly melanistic; abundismus; mosaic melanism; coastal islands; Nova Scotia

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DOI: http://dx.doi.org/10.22621/cfn.v128i1.1552



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