The Canadian Field-Naturalist Note Axanthism in Green Frogs (Lithobates clamitans) and an American Bullfrog (Lithobates catesbeianus) in Maine Scott B. Lindemann1, *, Aidan M. O’Brien1, Trevor B. Persons2, and Phillip G. DeMaynadier3 1Department of Wildlife, Fisheries, and Conservation Biology, University of Maine, 5755 Nutting Hall, Room 210, Orono, Maine 04469 USA 2206 Bigelow Hill Road, Norridgewock, Maine 04957 USA 3Maine Department of Inland Fisheries and Wildlife, 650 State Street, Bangor, Maine 04401 USA *Corresponding author:
[email protected] Lindemann, S.B., A.M. O’Brien, T.B. Persons, and P.G. DeMaynadier. 2019. Axanthism in Green Frogs (Lithobates clam itans) and an American Bullfrog (Lithobates catesbeianus) in Maine. Canadian Field-Naturalist 133(3): 196–198. https://doi.org/10.22621/cfn.v133i3.2285 Abstract We document eight cases of axanthism in Green Frogs (Lithobates clamitans) and one case in an American Bullfrog (Lithobates catesbeianus) in Maine. Although this mutation has been previously reported for both species, this is the first confirmed documentation of “blue” L. clamitans and L. catesbeianus from Maine. Key words: Green Frog; Lithobates clamitans; American Bullfrog; Lithobates catesbeianus; amphibian; blue colour vari- ant; axanthism; Maine Although “blue” frogs have been documented trated a blue L. clamitans; although not stated, it was since 1885 (Haller 1885; also cited in Berns and Uhler presumably from Quebec. Dodd (2013) included a 1966), Jablonski et al. (2014) note that axanthism is photograph of a blue L. catesbeianus, but did not give one of the least known colour aberrations in anur- its locality, and Gilhen and Russell (2015) reported ans.