. Central Asiatic Expeditions of the American Museum of Natural History, under the leadership of Roy Chapman Andrews : preliminary contributions in geology, palaeontology, and zoology. Central Asiatic Expeditions (1921-1930); Scientific expeditions; Natural history; Scientific expeditions; Natural history. 584 Bulletin American Museum of Natural History [Vol. XVLIII Cyon antiquus, new species Type.—No. 18389, a pair of lower jaws. No. 18583, parts of crania, limb bones and vertebrae of a canid of appropriate size and characters are provisionally re- ferred to the species. Distinctive Chahacter
. Central Asiatic Expeditions of the American Museum of Natural History, under the leadership of Roy Chapman Andrews : preliminary contributions in geology, palaeontology, and zoology. Central Asiatic Expeditions (1921-1930); Scientific expeditions; Natural history; Scientific expeditions; Natural history. 584 Bulletin American Museum of Natural History [Vol. XVLIII Cyon antiquus, new species Type.—No. 18389, a pair of lower jaws. No. 18583, parts of crania, limb bones and vertebrae of a canid of appropriate size and characters are provisionally re- ferred to the species. Distinctive Chahacters.—Metaconid distinct upon mi and m2. Teeth slightly more robust than in our specimens of C. alpinus, more decidedly larger and heavier than in C. javanicus. There is some question as to the vahdity of this species, as Mivart in his 'Monograph of the Canidse' figures the metaconid as present on mx of both species of Cyon, although it is absent in our specimens referred to them. It may therefore be a variable Fig. 15. Cyon atiti^uus. Lower jaw. No. 18389, type specimen, top and outer views. Natural size. Felis aff. tigris Linnaeus No. 18624, a complete skull and jaws; also a part of skull with lower jaws associated, and a number of jaws and limb bones more or less associated, are referred here. In comparison with a series of skuUs of the modern tiger we have been unable to recognize any constant distinc- tions for the fossil form, and therefore refer it to F. tigris, although a more minute and exhaustive comparison might very well show valid specific distinctions. There is no doubt, at any rate, that it belongs nearer to the tiger than to the lion and that it is quite distinct from F. cristata of^the Siwalik Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Central Asiatic Expeditions
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