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Show 270 DR. J. E. GRAY ON THE SKULLS OF THE FEL1D.E. [Mar. 14, behind. The front upper false grinder very early deciduous, always wanting in the half-grown skull. The skull of the Pajeros is like that of the Common Cat; but the orbits are small, as in the other diurnal Cats, and the face broader, and the brain-case is rather more produced behind; but it differs from that of the Leopards and Cats in the upper front false grinders being very early deciduous, as in the Lynxes. In the four skulls in the Museum the holes for these teeth are only to be observed in the skull of a very young animal; in the other three older skulls the holes even are obliterated. PAJEROS PAMPANUS. Felis pajeros, Desm. Mamm. p. 231. Hab. South America ; The Pampas. Skull elongated; face short, broad, slightly concave in front of the orbits; nasal broad below, suddenly narrowed above; orbits moderate, incomplete behind; brain-case rather swollen; forehead slightly convex, rhombic. Length 4 inches 2 lines, width 2 inches 4 lines. The skull differs from that of the common Felis domestica in the orbits being smaller and the brain-case larger. *** Skull ovate; face short; brain-case moderate. 10. FELIS. Tail cylindrical, elongate, sometimes shorter than the body. Ears oblong, rounded at the tip, without any pencilling. Pupil erect, linear. Skull moderate ; face short, conical; nose moderate, narrow above behind, concave in front of the orbits ; brain-case oblong, broad ; front upper false grinders distinct, small; orbits large, or very large, incomplete. *f* Moderate-sized large-headed Cats, with lines of spots on sides. Pardalis. Face of skull elongate. Pupil round, oblong, erect in sunlight.-Bartlett. 1. FELIS PARDALIS, Linn.; Baird, Mam. N. A. p. 87, t. 72 (skull). ? F. armillata, F. Cuvier. ? F. griffithsii, H. Smith. Hab. America, tropical or subtropical. Skull, adult: length 54-, width 3£ inches. 2. FELIS GRISEA. Leopardus griseus, Gray, Ann. & Mag. N. H. x. p. 260, 1842. Hab. Guatemala. Skull, adult: length 51, width 3| inches. Nose rather concave on the sides before orbits. |