1865.] DR. J. E. GRAY ON THE MUSTELID&. 117 
This animal has been confounded with Mustela lutreola, which 
is at once known from the Vison by the white spot on the side of 
the nose and the size of the tubercular tooth. 
Dr. Spencer Baird thinks that the Mustela rufa of Ham. Smith 
(Jardine, Nat. Libr. Mamm. xiii. 189) is intended either for the Vison 
or the Pine-Marten (see Mamm. N. A. 177). 
b. The upper tubercular grinder small, transverse, the inner half 
scarcely larger than the outer; upper lip white in front. Old- 
World. Lutreola. 
2. Vison LuTREOLA. Mank Nurec. B.M. 
Black-brown ; tail-end blacker ; spot on side of nose, on upper 
lip, and chin white. 
Mustela lutreola, Linn. 8. N. i. 66; Retz. Fauna, i. 9 ; Cuvier, 
R. A. i. 140; Nilsson, Skand. Faun. 152; Pallas, Spice. Zool. xiv. 
46, t. 8. f. 1; Zoogr. i. 80. 
Viverra lutreola, Linn. Faun. Suec. 5. 
Lutra lutreola, Shaw, Zool. ; Gloger, N. Act. Acad. N. Cur. 
xiii. 501; Baird, Mamm. N. A. t. 37. f. 23. 
Fetorius lutreola, Struck. Arch. Freund. fiir Natur. Mecklenb. 
xill. 139, 1859; Keys. & Blas. E. W. 21. 
Lutra minor, Erxl. Syst. i. 451. 
Tuhcuri leche, Vet. Acad. Hand. 1789, p. 302, t. 40. 
Mank, Nilsson, Illum. Fig. . 2, t. 8. 
? Marsh-Otter, Langsdorff. 
Hab. Europe. 
3. VISON SIBIRICA. Italse. B.M. 
Pale brown; head blackish, varied; spot on side of nose, on 
upper and lower lips, and front of chin white ; tail-end pale brown, 
like back. Varies, throat more or less white, 
Mustela sibirica, Pall. Spic. Zool. xiv. 86, t. 4. f. 2; Gray, List 
Mamm. B. M. 66; Schrenck, Amurland, 37 ; Gerrard, Cat. Bones 
B. M. 94. 
Mustela italsi, Temm. Faun. Japon. 34; Gerrard, Cat. Bones 
B. M. 95. 
Mustela natsi, Temm. Faun. Japon. t. 7. f. 2 (misprint). 
Hab. Siberia (B.M.); Himalaya (B.M.); Japan (B.M.); China, 
Formosa (Swinhoe, B. M.). 
Like V. lutreola; but much paler and smaller, and tail rather 
longer, compared with length of the body. Varies greatly in the 
quantity of white on the chin and throat. Males much smaller. 
4. VISON CANIGULA. B.M. 
Pale reddisk brown, scarcely paler beneath; face, chin, throat, 
side of neck, and chest white; tail as long as the body and head, 
coloured like the back ; feet whitish. 
Mustela canigula, Hodgson, J. A.S. Beng. xi. 274, 1842; Cal- 
eutta Journ. N. H. iv. 287; Gray, Cat. Hodgs. Coll. B. M. 13. 
