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Show 1867.] DR. J. E. GRAY ON THE SKULLS OF THE FELIDA. 271 3. FELIS MELANURA, Ball, P. Z. S. 1844, p. 128 I Hab. America. Skull, adult: length 5£, width 3£ inches. The skulls of these three species are very similar, only differing a little in size; perhaps they are only local varieties of the same species. 4. FELIS PICTA. Leopardus pictus, Gray, Ann. & Mag. N . IL x. p. 260, 1842. Hab. Central America. Skull: length 5|, width 3| inches. The skull of F. pardalis and the typical specimens of F. grisea and F. melanura are very similar in shape, size, and structure. The nasal bones vary in shape ; in some skulls they are short, broad, and gradually attenuated ; in others the nasal bones are longer, very broad in front, and then suddenly narrowed at about half their length ; but the different skulls vary in this respect, and the two forms gradually pass into each other. The skull of an adult F. pardalis is 5 inches long and 3^ inches wide, of the typical F. grisea 5^ inches long and 3£ inches wide; the nose rather concave on the sides behind. In the typical F. melanura the length of the adult skull is 5\ inches, width 3 inches 7 lines; intermaxillee elongated; orbits moderate, incomplete behind ; face broad, rather produced. "f"f Smaller, small-headed, spotted American Cats. Margay. 5. FELIS MACROURA, Pr. Max. Abhild. t. F. wiedii, Schinz. Var. Leopardus tigrinoides, Gray, Cat. M a m m . Hab. Brazil. Skull, adult: 4 inches long, 2 inches 2 lines wide. The nasals narrow, with the outer edges curved inwards. Length about 3| (imperfect behind), width 2g inches. 6. FELIS MITIS (chati), F. Cuv. Mamm. Lithogr. t. . F. chati, Griffith. Jaguar, Buffon, H. Nat. ix. t. 18. F. onca, Schreb. from Buffon. Hab. Paraguay. 7. FELIS TIGRINA, Schreb. t. 100. F. margay, Griffith. F. guigna, Molina. Margay, Buffon. Hab. South America. Skull as in F. macroura; the nasals rather wider, and the orbits not quite so large, compared with the size of the skull. Length about 3f (rather imperfect behind), width 2\ inches. |