Long-tailed weasel, Mustela frenata Lichtenstein 1831
(source)
I was unable to find a good picture of Mustela felipei (Izor and de la Torre, 1978) so that, alas, will be left by the wayside.
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tags: black-footed ferret, Mustela nigripes,
Stoat, Mustela erminea
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