MUSTELA 423 



smaller, the outer border of crown slightly notched in region 

 between cusps. 



Bemarks. — In certain conditions of pelage Mustela piitorius 

 bears a superficial resemblance to Marten foina, though the two 

 animals may always be distinguished by the different form of the 

 ears. Two geographical races ai-e at present recognized, though 

 their status is far from well understood. 



The ferret, Maries furo Linnteus,* though usually assumed to 

 be a domesticated variety of Mustela putorius, appears to be 

 related to the Asiatic M. eversmanni Lesson. f This is shown by 

 the deeply constricted postorbital region, the less triangular, 

 more inflated auditory bullse, and the smaller size of the carnassial 

 teeth both above and below, characters by which the few skulls 

 of ferrets that I have exandned may at once be distinguished 

 from those of Mustela putorius, but which render them practically 

 identical with those of the Eastern form. 



Mustela putorius putorius Linnpeus. 



1758. [Mustela] putorius Linnseus, Syst. Nat., i, 10th ed., p. 46. 

 1785. Mustela iltis Boddaert, Elenchus Animalium, p. 87 (Renaming of 

 jputorius). 



1797. Mlusteld] furo-putorius Link, Beytrage zur Naturgesch., i, p. 83 



(Based on a melanistic putorius popularly regarded as a hybrid 

 between /;t9-o djndi putorius). 



1798. Viverra foctens Thunberg, Beskrifning pa Svenske Djur, p. 15 



(Renaming oi piUorius). 



1801. Ml^ustelci] plutorius] albus Bechstein, Gemeinn. Naturgesch. Deutsch- 

 lands, 1, 2nd ed., p. 782. Not Mustela foiyia alba I.e. p. 759 

 (Thiiringen, Germany). 



1827. P\_utorius\ vulgaris Griffith, Cuvier's Anim. Kingd., v, p. 120 (Re- 

 naming of putorius). 



1839. ? [Mustela putorius'] var. flavicans De Selys-Longchamps, Etudes de 

 Micromamm., p. 145 (nomen nudum). 



1839. ? [Mustela putorius] var. vison De Selys-Longchamps, Etudes de 

 Micromamm., p. 145 [nomen nudum). 



1843. Putwius fontidus Gray, List Spec. Mamm. Brit. Mus., p. 64 (Re- 

 naming of putorius). 



1857. Fcetorius putorius Blasius, Saugethiere Deutschlands, p. 222. 



1868. Putorius infectus Ogerien, Hist. Nat. du Jura, iii, p. 59 (Substitute 

 iov putorius) . 



1904. Putorius putorius Barrett-Hamilton, Ann. and INIag. Nat. Hist., 

 7th ser., xiii, p. 389, May, 1904. 



1904. Putorius putorius manium Barrett-Hamilton, Ann. and Mag. Nat. 

 Hist., 7th ser., xiii, p. 390, May, 1904 (Teufen, Appenzell, Switzer- 

 land). Type in British Museum. 



1910. Putorius putorius and P. putorius manium Trouessart, Fauue 

 Mamm. d'Europe, pp. 76, 77. 



Type locality. — Sweden. 



Geograpliical distribution. — Central Europe from central Scan- 



* Syst. Nat., i, 10th ed., p. 46. 

 t Man. de Mamm., p. 144, 1827. 



