78 CARNIVORA. 
systematist who separated the Martens from the Weasels as genera, retained the term 
Mustela for the latter and used Martes (ex Gesner) for the former*. By both law and 
custom we are therefore bound to apply the Linnean title to the most typical division 
of his genus, to which it was assigned by its first separator, and to which it has been 
confined by most recent writers. 
Our only Central-American Weasel may be distinguished from its northern allies 
M. erminea, Linn., and M. longicaudata, Bonap., by the top of its head being darker 
than the back, the chin white, and the other lower parts orange-yellow or even 
salmon-coloured. The face may or may not present irregular white markings. 
1. Mustela brasiliensis. 
Mustela brasiliensis, Sewastonoff, Mém. Ac. Pétersb. iv. p. 356, pl. iv. (1818, descr. orig.)*. 
Mustela frenata, Lichtenstein, Darst. neu. Saugeth. pl. xlii. (1834, descr. orig.)*; Tomes, P. Z.S. 
1861, p. 287°; Dugés, La Nat. i. p. 187°. 
Mustela xanthogenys, Gray, Ann. & Mag. Nat. Hist. xi. p. 118 (1848, descr. orig.)’; Voy. ‘Sulphur,’ 
p- 31, pl. ix.° . 
Mustela noveboracensis, Frantzius, Arch. f. Naturg. xxxv. 1, p. 286 (nec De Kay)’. 
Putorius frenatus, Baird, Mamm. N. Am. p. 178°; Rep. U.S. Mex. Bound. Surv. ii. Mamm. p. 19°. 
Putorius brasiliensis, Coues, Fur-bearing Animals, p. 1421°. 
Onza (common to Felis eyra), Uronzito, Onzito of Mexicans’. 
Collareja of Costa-Ricans ’. 
Comadreja of Spanish Americans generally *. 
Hab. Nort America, from Oregon (2) southwards !°.—Mexico (Deppe, Mus. Berol. ; 
Charlesworth, Mus. Brit.), Tamaulipas, Matamoras (Berlandier 1°), Guanajuato, 
Mexico (Dugés*), Yucatan, Chochola (Gaumer, Mus. Boucard); GUATEMALA, 
Duefias (Salvin, Mus. Brit.*); Costa Rica (Frantzius’; Whitely, Mus. Brit.) ; 
Panama (Boucard, Mus. Berol.).—Sovutna America, to Brazil?°. 
An examination of a large series of specimens has convinced me that the systematic 
names quoted above are merely synonyms of a single variable species ; and it seems pro- 
bable that Mustela agilist, WZ. affinis$, WZ. aureoventris§, and M. macrura¥ will also 
prove to be the same. According to this view, in which Dr.-Elliott Coues concurs in 
his recent monograph”, only a single species of Mustela has yet been established as a 
native of the Neotropical Region. 
The range of the Bridled Weasel is stated by the zoologist just named to extend 
northward to Fort Crook in California, ifnot to Astoria in Oregon, thus overlapping that 
* «Skandinavisk Fauna,’ i. p. 41 (1820). The genus Martes has been quoted by Lilljeborg and some others 
as having been instituted by “ G. Cuvier, 1797.” This error appears to have originated in a misunderstanding 
of the French plural “ Martes” in the ‘ Tableau Elémentaire.” Cf. P.Z.8. 1879, p. 468. 
+ Tschudi, Faun. Peru. p. 110. + Gray, Ann. & Mag. Nat. Hist. xiv. p. 373. 
§ Gray, P. Z. §. 1864, p. 55. @ Taczanowski, P. Z.S. 1874, p. 311, pl. xlviil. 
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