Notes Records of Melanistic American Red Squirrels ( Tamiasciurus hudsonicus ) from Nova Scotia HOWARD M. H UYNH 1,2 *, B ERNARD L. B URKE 3, and DONALD F. M CALPINE 2 1 Department of Biology, Acadia University, Wolfville, Nova Scotia B4P 2R6 Canada 2 New Brunswick Museum, 277 Douglas Avenue, Saint John, New Brunswick E2K 1E5 Canada 3 21 Micmac Boulevard, Dartmouth, Nova Scotia B3A 4N3 Canada *Corresponding author: email:
[email protected] Huynh, H. M., B. L. Burke, and D. F. McAlpine. 2011. Records of melanistic American Red Squirrels ( Tamiasciurus hudsonicus ) from Nova Scotia. Canadian Field-Naturalist 125(2): 15 4–157. Though melanism has been observed in several species of North American sciurids, the occurrence of this phenotype is rel - atively rare in American Red Squirrels ( Tamiasciurus hudsonicus ). We provide the first detailed accounts of melanistic Red Squirrels observed in Nova Scotia, Canada. Key Words: American Red Squirrel, Tamiasciurus hudsonicus , Melanism, Nova Scotia . Melanism in mammals refers to black or very dark of a typical adult Gray Squirrel. The presence of other brown pelage (Caro 2005), and is a relatively uncom - external characters – i.e., hair tufts protruding from the mon phenotype observed in most species of mammals top of the pinnae (more accentuated in winter pelage; (Guthrie 1967). While most populations exhibit grad - Steele 1998; Whitaker and Hamilton 1998) and small - ual intraspecific colour variation across their geo - er, flatter tail (Steele 1998) – also confirmed that this graphic range, there are some populations that show animal was a Red Squirrel. discontinuous variation (Caro 2005), with melanistic On March 22, 2010, the second author observed and (melanic) individuals occurring at high frequency photographed a young adult melanistic Red Squirrel (Guthrie 1967).