I believed then, and my opinion has since been strengthened, that it is a partially melanistic phase of the ordinary yellow tiger.
"Camps and Trails in China" by Roy Chapman Andrews and Yvette Borup Andrews
Melanistic specimens are rarer still, and I have seen but one, which was caught in Lodi Township in 1875.
"The Mammals of Washtenaw County, Michigan" by Norman Wood
Melanistic tendencies in this species have been discussed by Anderson (1960:64), who examined the specimen from Tzitzio.
"The Amphibians and Reptiles of Michoacán, México" by William E. Duellman
One melanistic individual was taken one mile northeast of Whitehorse on July 11.
"Mammals taken Along the Alaska Highway" by Rollin H. Baker
Abnormal white-spotting dorsally occurs as does yellow and melanistic coat color.
"North American Jumping Mice (Genus Zapus)" by Philip H. Krutzsch