POSTSCRIPT. 
It should have been observed that the reference of Antilope torticornis, Aymard, to Paloeoreas is on 
the authority of M. P. Thomas (‘ M6m. Soc. G6ol. France.’ ser. 3. vol. III. art. 2. p. 16), and that it is 
referred by M. Depdret in the passage quoted in the text to Tragelaphus. According to Prof. Riitimeyer’s 
description (‘Die. Rinder der Tertiar-Epoche, etc.’ p. 85) the molars of this form are very similar to 
those of Strepsiceros (?) falconeri. Since the text was in type the writer has noticed that a tooth from the 
‘ Bohnerzgruben ’ of Wiirtemberg has been described by Prof. Riitimeyer (see p. 88 of the work cited) 
as Hippotragus fraasi. If this determination and the reference of A. torticornis to Tragelaphus rather 
than to Paloeoreas be correct, there is evidence of the occurrence of two existing African genera of 
antelopes in the tertiaries of Europe. 
