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Show 1890.] SOUTH-AMERICAN CANID.E. 101 Length of P J 1-15, of M.1+M.2 1-50, or as 100 to 130. Thus these molars are relatively larger than in C. azarce, but it is not larger than in the C. vetulus of Lund, which probably is (as Burmeister believes) the same as Wied's C. azara. I can, at present, only regard C. fulvipes as a dark variety of C. azarce from the island of Chiloe. (3) Canis griseus is a species first named by Gray (P. Z. S. October 1836, p. 88) and first described by him in Nov. 1837 (Mag. Nat. Hist., Charlesworth, i. p. 578) thus:-" Vulpes griseus. Pale grey, with blackish tips to the hairs ; legs pale fulvous ; lips, throat, belly, and front of the thighs white; tail blackish at the upper part of the base and at the tip. Inhabits Magellan.-Captain P. P. King." The skin thus described, the type of the species, is also in the Fig. 2. Upper molars (right side) of Canis fulvipes. Lower molars (right side) of Canis fulvipes. British Museum (No. 55. 12. 24. 239). It is, however, quite immature, and cannot, therefore, by itself serve (in the absence of some very marked character) for the establishment of a distinct species. The skull is in the skin. Dr. Burmeister has also described and figured a Dog, which he has entitled C. griseus, Gray (' Fauna Brasiliens,' p. 48, pis. xxv., xxviii., and xxix., and description 'Descript. phys. Rep. Argentine,' vol. iii. p. 151); and the question arises, Is, or is not, this a distinct species 1 N o w Dr. Burmeister is a naturalist who very distinctly merits our esteem ; he has long lived in South America, and it is impossible |