. Catalogue of the fossil Mammalia in the British museum, (Natural History). Mammals, Fossil. 32 CARNIVORA. H. lieberti, H. leptorhynchus) the lower border of the enamel bends upwards at the posterior extremity of the tooth in precisely the same manner, although not quite to the same extent, as in the Siwalik teeth. In none of the European or American species, how- ever, is there the marked cingulum of the latter; while in all the larger forms the hinder lobe is relatively larger; although in the much smaller H. crucians, Leidy1, the two lobes are more nearly of the same length. In all, the an
. Catalogue of the fossil Mammalia in the British museum, (Natural History). Mammals, Fossil. 32 CARNIVORA. H. lieberti, H. leptorhynchus) the lower border of the enamel bends upwards at the posterior extremity of the tooth in precisely the same manner, although not quite to the same extent, as in the Siwalik teeth. In none of the European or American species, how- ever, is there the marked cingulum of the latter; while in all the larger forms the hinder lobe is relatively larger; although in the much smaller H. crucians, Leidy1, the two lobes are more nearly of the same length. In all, the anterior lobe is much stouter than the posterior; and the wear of the summits of the lobes is similar to that of the Indian ; The length of the complete Indian tooth is 0,026. M. 1685. The third right lower true molar; from the Upper Eocene (Fig.) of Bach, near Lalbenque (Lot), Erance. This tooth, which is represented in the accompanying woodcut (fig^ 2), Eig. Hycenodon (?) sp.—The third right lower true molar; from the Upper . Eocene of Bach. \. has lost the anterior fang, and agrees precisely, with the exception of its inferior size, with the Indian teeth noticed above. Its length is 0,020, and it evidently belonged to the same genus, if not to a smaller race of the same species, as the Indian specimens. It is different from the corresponding tooth of all the European species of Hycen- odon described by Eilhol, and presents no resemblance to Proviverra, Pterodon, or Ooeyama; while the writer has been unable to identify it with any of the allied genera from the American Tertiaries. To whatever genus it really belongs, the occurrence in the Lower Tertiaries of 1 Journ. Ac. Nat. Sci. Philadel. vol. vii. pi. 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 British Museum (Natural History). D
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