8 
INMAN TERTIARY AND POST-TERTIARY VERTEBRATA. 
the upper pliocene of the Yal d’Arno 1 and of Algiers, 2 and the pleistocene of 
France ; 8 the species of the latter area being regarded as connecting the older forms 
with Tragelaphus. 
Species. Oreas (?) latidens, nobis.* 
Syn. Cervus latidens, nobis. 5 
Summary. — This species is known by the dentition, which is described and 
figured in vol. III. pp. 111-114. pi. XIII. figs. 12, 13. The upper molars agree very 
closely with those of 0. canna, but have a larger internal accessory column ; — a cir- 
cumstance of importance in regard to the teeth of the next species, as it may indicate 
a character common to the earlier forms. The enamel is smooth, and there is a 
distinct median costa on the outer surface of the anterior lobes of the upper true 
molars. 
Genus. STREPSICEROS, Gray. 6 
Distribution. — The two existing species range over tropical and southern Africa ; 
the smaller S. imherbis being found in Somali-land, which is on the route by which the 
Siwalik genera may have passed into Southern Africa. 7 The allied Tragelaphus 
is a still smaller form, which is closely related to Pro tragelaphus, Dames, 8 of the 
Pikermi beds. 
Species. Strepsiceros (?) falconeri, nobis. 9 
History. — This species is founded on an immature cranium in the British 
Museum, 10 which has not hitherto been figured. 
Cranium. — The type cranium is represented in plate II. figs. 2, 2a, a cranium of 
the existing S. kudu being represented in figures 1, la, of the same plate. The 
fossil, which was obtained from Perim Island, wants the nasals, the premaxillae, and 
part of the maxillae; the palate is obscured, the teeth partly broken, and only a 
fragment of the right horn-core remains : the milk-molars are still retained, m. 1 is 
in use, m. 2 in alveolo, 11 while m. 3 is not seen at all. It agrees with the existing 
species of Strepsiceros and Oreas 12 in the depressed frontals, with large supraorbital 
pits, but differs from the latter by the absence of a protuberance on the lachrymal, 
in the position of the notch in the rim of the orbit, in the wider interval between 
the horn-cores, the closer approximation of the latter to the orbits, and their greater 
distance from the supraoccipital ridge. As will be seen by a comparison of the 
1 F. Major, ‘Quart. Joum. Geol. Soc.’ vol. XLI. p. 2 (1885). — P. montis-caroli. 
2 Thomas, ‘ Mem. Soc. Geol. Soc. France,’ ser. 3. vol. III. art. 2. p. 16 (1884). P. gaudryi. 
3 See Deperet, * Bull. Soc. Geol. France.’ 1884. p. 278. — P. tortieomis (Aym). 
4 Supra, vol. I. p. 65 (1876). — Cervus. 5 Loc. cit. 
6 List of Mammalia in British Museum, p. 155 (1843). 
7 Lydekker * Quart. Joum. Geol. Soc.’ vol. XLII. p. 175 (1886). 8 Sitz. Ges. nat. Berlin. 1883. pp. 95-97. 
9 ‘ Geol. Mag.’ dec. 3. vol. II. p. 170 (1885). 
10 See “ Cat. Foss. Mamm. Brit. Mus.” pt. II. p. 47. No. 37262 (1885). 
11 In the “ Cat. Foss. Mamm. Brit. Mus.’ loc. cit. this tooth was mistaken for m. 3. 
12 A figure of the cranium is given by Rutimeyer, ‘ Hinder der Tertiar-Epoche.’ pi. VT. (‘ Abh. schw. pal. Ges.’ vol. V.) 
