1865. =americana= (_Mustela erminea_ Var. 3) Gray, Proc. Zoöl. Soc. London, 1865:111. The larger individuals of American weasels of both _Mustela erminea_ and _Mustela frenata_ from the Atlantic Coast to as far west as Carlton House, Saskatchewan, were lumped under this name because Gray desired more information than he then had before recognizing as different from one another several species proposed for America up to the time concerned. The name is unavailable because it is preoccupied by _Mustela americana_ Turton (1806) the name for the American marten. 1865. =americana= (_Mustela vulgaris_ Var.) Gray, Proc. Zoöl. Soc. London, 1865:113. Under this name the smaller weasels of the northern and northeastern part of North America were lumped by Gray but the name is preoccupied and can be ignored. 1874. =affinis= (_Mustela_) Gray [= _Mustela frenata affinis_], Ann. and Mag. Nat. Hist., 14 (ser. 4):375, 1874, from New Granada [= Colombia], had the type locality restricted to Bogotá, Colombia, by Allen in 1916, and is applied to the long-tailed weasel of the tropical and temperate zones of the eastern Andes of Colombia. 1874. =macrura= (_Mustela_) Taczanowski [= _Mustela frenata macrura_], Proc. Zoöl. Soc. London, for 1874, p. 311, pl. 48, May 19, 1874, applies to the long-tailed weasel of central Perú and northern Ecuador. 1877. =culbertsoni= (_Putorius_) Coues [= _Mustela frenata longicauda_], Fur-bearing animals ..., p. 136, 1877, is based on specimens from Fort Laramie, Wyoming. In the past the name has been regarded as a _nomen nudum_ but there is some reason for regarding it as having nomenclatural status. In either event it is here arranged as pertaining to the long-tailed weasel of the Great Plains which takes the prior name _longicauda_. See the account of _longicauda_ for a more detailed account of the name _culbertsoni_. 1877. =aequatorialis= (_Putorius_ (_Gale_) _brasiliensis_) Coues [= _Mustela frenata aureoventris_], Fur-bearing animals ..., p. 142. Proposed "merely as a substitute for Gray's [supposedly] preoccupied name," _aureoventris_. 1881. =stolzmanni= (_Mustela_) Taczanowski [= _Mustela africana stolzmanni_], Proc. Zoöl. Soc. London, for 1881, p. 835, November 15, 1881, is applied to the tropical weasel of the Upper Amazon Basin. 1881. =jelskii= (_Mustela_) Taczanowski [= _Mustela frenata macrura_], Proc. Zoöl. Soc. London, for 1881, p. 647, May 17, 1881, was proposed for the female in the mistaken opinion that it was specifically distinct from the larger male which the same author previously had named _macrura_.