MAMMALTA. 355 
HYZENODON (con(inwed)— 
minor, P. Gervais, Zool. et Pal. Franc., ed. 1, vol. i, 1848-52, 
p. 129; R. Lydekker, Geol. Mag. [3] vol. i, 1884, p. 444, and 
Cat. Foss. Mamm. B. M., pt. i, 1885, p. 25. 
Hyenodon, [B.] Hastings, Bull. Soc. Géol. France [2] vol. ix, 
1852, p. 198, and E. B. Tawney and H. Keeping, Quart. 
Journ. Geol. Soc., vol. xxxix, 1883, p. 571. 
Hycnodon leptorhynchus, W. B. Dawkins (errore), Quart. Journ. 
Geol. Soc., vol. xxxvi, 1880, p. 383. 
Loc. Headon Beds; Hordwell. [dJandible; Brit. Mus.] 
sp., R. Lydekker, Cat. Foss. Mamm. B. M., pt. i, 1885, pp. 38, 40. 
Loc. Headon Beds; Hordwell. [Limb-bones; Brit. Mus., 
nos. 29869, 29726, 30132.] 
HYOPOTAMUS, R. Owen, Quart. Journ. Geol. Soc., vol. iv, 1848, 
p. 103; W. Kovalevsky, Phil. Trans., 1873 (1874), p. 30, 
pls. xxxv-xl. 
bovinus, R. Owen, Quart. Journ. Geol. Soc., vol. iv, 1848, p. 103, 
pls. vii, -viil; J. Morris, Cat. Brit. Hoss, 1854), \pi03S9 3 
R. Lydekker, Geol. Mag. [3] vol. i, 1884, p. 547, and Cat. 
Foss. Mamm. B. M., pt. ii, 1885, p. 221, woodcuts 29, 30. 
Ancodus bovinus, H. Filhol, Ann. Sci. Géol., vol. xii (1882), 
p. 189. 
HHycpotamus vectianus, R. Owen (errore), Quart. Journ. Geol. 
Soc., vol. iv, 1848, pl. vii, f. 6, 7. [Upper molar; Brit. 
Mus. ] 
Loc. Hempstead Beds ; I. of Wight. [Upper molar ; Brit. Mus. } 
gresslyi, Ritimeye:. v. Anthracotherium gresslyi. 
porcinus, P. Gervais, Zool. et Pal. Franc., ed. 1, vol. ii, 1848-52, 
Expl. to pl. xxxi, p. 1; R. Lydekker, Geol. Mag. [3] vol. i, 1884, 
p- 547, and Cat. Foss. Mamm. B. M., pt. ii, 1885, p. 228, 
woodcuts 31, 32. 
Hyopotamus, W. Kovalevsky, Phil. Trans., 1873 (1874), p. 19, 
Pa; SKXV,'f, 2, pl. xxxvi,'f. 3. 
Loc. Hempstead Beds; I. of Wight. [Portions of jaws ; 
Brit. Mus. | 
vectianus, Owen. v. Hyopotamus velaunus. 
velaunus (Cuvier), R. Lydekker, Geol. Mag. [3] vol. i, 1884, 
Pp. 547, and Cat. Foss. Mamm. B. M., pt. 11, 1885, p. 218. 
Anthracotherium velaunum, Cuvier, in H. von Meyer, Palzo- 
logica, 1832, p. 82. 
Hyopotamus vectianus, R. Owen, Quart. Journ. Geol. Soc., vol. 
iv, 1848, p. 103, pl. viii; J. Morris, Cat. Brit. Foss., 1854, 
p- 359. [See also AH. dovinus.] T. (Ayvopotamius.) 
Ancodus velaunus, A. Pomel, Catal. Méthod., 1853, p. 91. 
Loc. Hempstead Beds; I. of Wight. [Portions of jaws; 
Lrit. Mus.) 
