| Citation | Norden, G.R., 1959, Comparative morphology of certain salmonid fishes with particular reference to the grayling (Thymallus arcticus), and its phylogeny.. Univ. Michigan, Ann Arbor. 214 p. Ph.D dissertaion. |
| Ref. | 28877 Norden, G.R., 1959 |
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| Named Used as Valid | Thymallus arcticus |
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