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Show 340 DR. J. MUHIE ON THE [May 26, young animal are exhibited in the wall-cabinets of the British Museum ; so that little remains to be added on m y part. Much stress has been laid by Mr. Ogilby* on the presence or absence of cutaneous glands as indicative of affinities among the hollow- horned Ruminants. I made a careful search, therefore, for these on the dead body of the Prongbuck; and the subjoined is the result:- 1. N o crumen or suborbital sinus was discovered, as all previous writers have averred. 2. There is, however, a cutaneous gland which exudes a yellow glutinous secretion, situated an inch and a half below the ear. Dr. Richardson evidently alludes to this when he says, " there is a dark blackish-brown spot at the angle of each jaw, which exhales a strong hircine odour"**)-. 3. N o inguinal sacs exist, thus verifying OrdJ and Dr. Gray's § character of the genus. 4. In a footnote to his paper, Mr. Bartlett || says, " A gland of considerable size exists in the back of this animal, immediately over the white patch." My examination confirms his observation. Dr. Canfieldf[ has even more pointedly referred to this when speaking of the glands as "one over the junction of the sacrum with the spine, 6 or 8 inches anterior to the tail." 5. The last-quoted author, in the living animal, says, furthermore, " the Antelope has a very peculiar odour, strong and (to some persons) offensive. This comes principally from the glands in the white part of the breech. One of these is placed over each prominence of the ischium, below and on each side of the tail;" another, as above referred to, No. 4. This statement was substantiated in the dead body of our animal. 6. O n both hind limbs, at the hock, behind the joint, and rather to the outside of the leg, there is another cutaneous secreting-gland. 7. Interdigital sacs exist on all four limbs. The cutaneous glands of Antilocapra americana may be thus expressed :-Present, in pairs, 1 postmandibular or subauricular, 1 ischial, 1 hock, 2 interdigital: total 10 glands. Absent (but occasionally present in other ruminants), suborbital and inguinal. In a review of the structures of the Saiga I have shown that the hair, among other characters, differentiates it from members of the antilopine group, and, so far as hirsute clothing is concerned, proves it to be a Sheep. When the same test is applied to the Prongbuck, the microscopic texture reveals, of a verity, that its hair also is very unlike that of the Antelopes, say, for instance, Cuvier's Gazelle. In tbe accompanying woodcut (fig. 1) A and B delineate the minute textural composition of the hair of Antilocapra americana from two regions of the back. Though differing in absolute magnitude, that from the head being the smaller, they yet agree in the delicate nature of the cortical substance and large-sized hexagonal * Brit. Assoc. Rep. 1833, and Trans. Zool. Soc. vol. iii. p. 60. t Op. cit. p. 267. % Jour, de Plus. 1818. § Cat. Mam. Brit. Mus. || Loc. cit. p. p. 721. «~ Loc. cit. p. 106. |