Thymallus tricolor Cope, 1865

Michigan grayling



Taxonomy & Nomenclature

Invalid (synonym)


Conservation Status

Invalid (synonym)



Michigan, USA


Biology & Ecology










Original scientific description:

Cope, Edward Drinker. (1865). Partial catalogue of the cold-blooded vertebrata of Michigan. Proceedings of the Academy of Natural Science, Philadelphia, part 2, p. 78-88. 

Other references:

Babbitt, A. C. (1900). Michigan grayling, (Thymallus tricolor). Transactions of the American Fisheries Society, val. 29 (for 1900), p. 106-108.

Eriksen, Clyde H. (1975). Physiological ecology and management of the rare “southern” grayling Thymallus arcticus tricolor Cope. Internationale Vereinigung für Theoretische und Angewandte Limnologie: Verhandlungen 19(3): 2448-2455. [First page]

Goode, G. B. (1884). The grayling--Thymallus tricolor. and Fishery Industries of the United States. Section U. S. Commission of Fish and Fisheries, p. 505-507.

Milner, J. W. (1874). Notes on the grayling of North America (Thymallus tricolor). Report of U. s. Fish Commission, vol. 2, for 1872 and 1873, p. 729-742.

Nelson, Perry. (1954). Life history and management of the American grayling (Thymallus signifer tricolor) in Montana. Journal of Wildlife Management 18(3): 324-342.

Watling, H. and Brown, C. J. D. (1955). The embryological development of the American grayling (Thymallus signifer tricolor) from fertilization to hatching. Transactions of the American Microbiological Society 74(1): 85-93.


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