. Catalogue of the fossil Mammalia in the British museum, (Natural History). Mammals, Fossil. HY^NODONTTD^. 31 M. 1379. The last right lower premolar; from the Upper Eocene of Caylux. Purchased, 1884. Hyaenodon (?) sp. (Cf. Hyamodon i?idicus, Lydekkerl.) Bab. Prance and (?) India. The species H. indicus was founded on the evidence of a fourth right lower premolar from the Pliocene Siwaliks of the Punjab, India, which indicates a species of very large size. This tooth is represented in the accompanying woodcut (fig. 1). At the same Fig. Hycenodon indicus,.—The fourth right lower premolar; f
. Catalogue of the fossil Mammalia in the British museum, (Natural History). Mammals, Fossil. HY^NODONTTD^. 31 M. 1379. The last right lower premolar; from the Upper Eocene of Caylux. Purchased, 1884. Hyaenodon (?) sp. (Cf. Hyamodon i?idicus, Lydekkerl.) Bab. Prance and (?) India. The species H. indicus was founded on the evidence of a fourth right lower premolar from the Pliocene Siwaliks of the Punjab, India, which indicates a species of very large size. This tooth is represented in the accompanying woodcut (fig. 1). At the same Fig. Hycenodon indicus,.—The fourth right lower premolar; from the Siwaliks of Kushalghar, Punjab. Indian Museum, Calcutta. \. (From the ' Pahe- ontologia Indica.') time two other teeth, which were regarded as being third lower true molars, were described and figured (' Palaeontologia Indica,' ser. 10, vol. ii. pi. xliii. figs. 5, 6), and provisionally referred to the same species, although it was suggested that they might possibly belong to a distinct species, or even genus. The most perfect of the two Indian teeth belongs to the left side, and was described in the following words, viz.:—" It is divided into two distinct lobes, of which the first is the stoutest: externally there is a stout cingulum forming the base of the crown. Posteriorly the lower border of the enamel of the crown runs suddenly upwards on both sides, nearly to the summit of the hind ; The tooth comes nearest to " the last lower true molar of Hycenodon2; in some species of which (e. g. 1 Paleeontologia Indica (Mem. Geol. Surv. Ind.), ser. 10, vol. ii. p. 349 (1884). 2 The tooth might be taken for the lower carnassial of a feline; but is distin- guished by the form of the lower border of the enamel, and of the worn sur- faces of the summits of the lobes, by the presence of the cingulum, and the size and direction of the fangs. In the large primitive felines ( Mlurogale inter- media) there is a hind talon to the lower Please n
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