Cite this article as:
Katz A. V. On findings of colour anomalies in the moor frog Rana arvalis Nilsson, 1842 (Ranidae, Amphibia) in the Moscow region. Current Studies in Herpetology, 2022, vol. 22, iss. 1, pp. 65-69. DOI: https://doi.org/10.18500/1814-6090-2022-22-1-2-65-69
On findings of colour anomalies in the moor frog Rana arvalis Nilsson, 1842 (Ranidae, Amphibia) in the Moscow region
Information on two findings of colour anomalies in the moor frog, Rana arvalis, in the Moscow region is prerented. In one case, the colour anomaly in a frog found in Shchelkovo District was probably the result of a decrease in the number of iridophores. This anomaly corresponds to none of the colour morph of R. arvalis described previously. The second finding was made in Volokolamsk District, and the colour anomaly was expressed in a strongly pronounced spotted pattern, which is unusual for this species.
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