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Show 1868.J DR. J. E. GRAY ON THE CANID.E. 513 G. cancrivorus americanus, Burmeister, Fauna Bras. t. 27(skiill). Vulpes magellanicus, Gray, Mag. N. H. 1836, p. 578; List M a m m . B. M . 61 ; Gerrard, Cat. Bones of M a m m . 87. 1 Canis azarce, Waterhouse. ? Colpeo, Canis colpaceus, Molina. 1 Canis tetradactyla, Meyer. Chile Fox, Shaw, Zool. 329. Hab. Chili and Bolivia (Bridyes) ; Strait of Magellan (Darwin). In the British Museum there are skulls from Chili, marked 184 a,c, and 184/", Vulpes magellanicus, which are those of adult animals, and have a linear crest extending the whole length of the crown. There is another skull, evidently from the same series, no. 184 e, also without any skin belonging to it, which has its adult teeth, but is not so large or aged as the others. It has a broad flat crown (separating the temporal muscles), which is wide in front and tapering to the occiput; and the side margins are rather curved in, giving it a slightly vase-like form. Length 5 inches 7 lines, width 2 inches 11 lines. There are also a skull and skeleton (no. 184 5) from Chili, of which the skull is intermediate in size between the larger skulls and the small one. The coronal crest is linear; but there is an indication of the vase-shaped crown-plate on each side of the central ridge. Nos. 817 a, b, c, d, e are five smaller skulls, named Vulpes azarce, sent from Bolivia by Mr. Bridges. They are very similar externally, but they vary considerably in the size of the upper tubercular grinders as compared with the other teeth, and slightly in the form of the lobes of the upper sectorial tooth. The hinder upper tubercular is always of the same form as the penultimate, but smaller. The internal lobe of the sectorial tooth of V. magellanicus from Chili, 184 e, is rather larger, with the front edge on a level with the front edge of the body of the tooth; in the small skulls from Bolivia the lobe is very slightly in front of the line of the fore edge of the tooth. I believe these all belong to one species; and they are very like the skulls figured as Canis crancrivorus, var. brasiliensis, by Burmeister, Fauna Bras. t. 27. They are very different in the form of the crown and other details from the skull figured as C. azarce by Blainville, Osteogr. t. 4, and by Burmeister, Fauna Bras. t. 28. f. 4. 4. PSEUDALOPEX ANTARCTICUS. B.M. Canis antarcticus, Shaw, Zool. i. 331 ; Desm. Mamm. 199 ; Gray, List M a m m . B. M . 59 ; Darwin, Zool. Beagle, ii. t. 4. Antarctic Fox, Penn. Hab. Falkland Islands. - 5. PSEUDALOPEX GRACILIS. Canis (Pseudalopex) gracilis, Burm. Reise La Plata, ii. 406; Arch. Naturg. 1862, p. 130. Hab. Pampas of Mendoza. |
