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Show 1868.J DR. J. E. GRAY ON THE SUIDAE. 35 C. larvatus, Gray, Ann. & Mag. N. H. 1852. Phacochcerus koiropotamus, Lesson, N. Tab. R. A. 162, 1841. Sus koiropotamus, Desmoulins, Diet. Class. H . N. t. 7, § . Sus choiropotamus, Reichenb, Naturg. d. Pachyd. t. 33. f. 48. Potamochcerus larvatus, Gray, Ann. & Mag. N. H. xv. 66 ; Fitz. Sitz. Akad. d. Wissen. 1864, p. 19. P. africanus, Gray, P. Z. S. 1852, p. 131, 1858, p. 58, 1860, p. 443; Gerrard, Cat. Bones, B. M . 279; Kirk, P. Z. S. 1864, p. 656. Phascochcerus larvatus, Jardine, Nat. Libr. 232, t. 28. Sanglier a masque, Sganzin, M e m . Strasb. iii. 1, t. 1. Female. Skull with only a ridge across the base of the sheath of the upper canines. Sus capensis, Gray; Gerrard, Cat. of Bones B. M. 277 (skull). Hab. South Africa, called "Bosch Vark;" Central Africa; Zambesi delta, called "Njulvi" (Kirk). " Scarcely any two specimens of this species exhibit the same colour; some are brownish black variegated with white, and others are almost entirely of a light reddish brown or rufous tint without the white variations ; indeed such are the varieties that it is scarcely possible to say what are the most prevailing colours."-A. Smith, S. A. Quart. Journ. p. 90. 1. In the British Museum there is a skeleton (1364 b) of a specimen that lived several years in the Zoological Gardens. In the skull the malar process is very broad, reaching nearly to the level of the top of the nose ; it is thin on each edge, and thickened near the outer hinder edge by a strong angular keel. 2. A skull (1364 a) that was purchased of Mr. Argent in 1851 as coming from South Africa. It has the process of the sheath of the canines nearly as long as the preceding (1364 b) ; but it is not so broad from side to side, and the outer surface is evenly rounded, without any keel. This skull very nearly resembles the one figured by De Blainville as that of Sus larvatus (Osteograph. t. 5), and the skull figured by M . F. Cuvier (Mem. Mus.). 3. A skull from the Museum of Dr. de Jeude, probably from the Cape of Good Hope (1364 c). The front of the lower jaw behind the canine is more dilated and swollen in P. larvatus (1364 b) than in the lower jaws of the two other skulls; but they all differ from each other more or less in this respect. 4. A skull without its lower jaw (715 a), was brought home by Captain Alexander from his Expedition to Damara, and presented to the British Museum. It is recorded in Mr. Gerrard's ' Catalogue of the Bones in the British Museum' as Sus capensis (p. 277). It is the skull of an adult animal, with the crown of the grinders much worn. It is probably the skull of a female, as it agrees with all the characters of Potamochcerus, but it has only a well-marked ridge across the upper part of the base of the sheath of the upper canine, and the upper margin of the nose is not dilated nor swollen. |