MAMMALIA. 351 
HALITHERIUM, J. J. Kaup, Neues Jahrb., 1838, p. 319 (//a/y- 
theriumy). 
canhami, W. H. Flower, Quart. Journ. Geol. Soc., vol. xxx, 1874, 
p. 1, pl. i; R. Lydekker, Cat. Foss. Mamm. B. M., pt. v, 
1887, p. 7. 
Loc. Red Crag; Foxhall. [Abraded cranium; Ipswich Mus. | 
HERPETOCETUS, P. J. Van Beneden, Bull. Acad. Roy. Belg. [2] 
vol. xxxiv, 1872, p. 20. 
scaldiensis, P. J. Van Beneden, zd, p. 20; R. Lydekker, 
Quart. Journ. Geol. Soc., vol. xliii, 1887, p. 13, and Cat. Foss. 
Mamm. B. M., pt. v, 1887, p. 47. 
Loc. Red Crag; Felixstowe. [Zympanic bone; Mus. Pract. 
Geol.| rT. 
HETEROCETUS, Van Beneden. v. Cetotherium. 
brevifrons, Van Beneden. v. Cetotherium brevifrons. 
HIPPARION, J. de Christol, Ann. Sci. Indust. Midi France, 
vol. i, 1832, pp. 180, 181. 
HIPPOTHERIUM, J. J. Kaup, Neues Jahrb., 1833, p. 327. 
? gracile (Kaup), A. Gaudry, Anim. Foss. Mont Léberon, 1873, p. 32; 
R. Lydekker, Quart. Journ. Geol. Soc., vol. xii, 1886, p. 366, 
and Cat. Foss. Mamm. B. M., pt. iii. 1886, p. 51. 
Equus (flippotherium) gracilis, J. J. Kaup, Neues Jahrb., 1833, 
Pp: 327. 
Loc. Red Crag ; Suffolk. [Teeth ; Brit. Mus.] 
WIPPIDION, Owen. v. Equus. 
HIPPOPOTAMUS, Linnzus, Syst. Nat., ed. 12, vol. 1, 1766, p. 101. 
amphibius, Linnzus, Syst. Nat., ed. 12, vol. i, 1766, p. 101; 
R, Lydekker, Cat. Foss. Mamm. B. M., pt. ii, 1885, p. 277. 
Hippopotamus antiqguus, A. G. Desmarest, Mammalogie, 1822, 
p. 388. 
Hippopotamus major, R. Owen, Rep. Brit. Assoc., 1843 (1844), 
p- 223, and Brit. Foss. Mamm., 1846, p. 399, woodcuts 
159-162, and Palzontology, ed. 2, 1861, p. 399, woodcuts 
153,154; J. Morris, Cat. Brit. Foss., 1854, p. 359; H. Denny, 
Proc. Geol. Polyt. Soc. Yorksh., vol. ii, 1853 (1859), p. 336; 
W. B. Dawkins and W. A. Sanford, Brit. Pleist. Mamm., 
pt. i (Pal. Soc., 1866), p. xxviii; H. Falconer, Palzont. 
Mem., vol. ii, 1868, p. 564; G. W. Ormerod, Trans. Devon. 
Assoc., vol. iii, 1869, p. 79; W. Pengelly, Trans. Devon. 
Assoc., vol. iii, 1869, p. 483; G. Busk, Quart. Journ. Geol. 
Soc., vol. xxvili, 1872, p. 467, pl. xxix ; RK. Johnson, Trans. 
Norfolk and Norwich Nat. Soc., vol. ii (1877), p. 285 ; 
E. T. Newton, Geol. Mag. [2] vol. vii, 1880, p. 448, and 
Vert. Forest Bed (Mem. Geol. Surv., 1882), p. 42; P. Lake, 
Geol. Mag. [3] vol. ii, 1885, p. 318. 
