360 BRITISH FOSSIL VERTEBRATA. 
MACHZERODUS, J.J. Kaup, Descr. Ossem. Foss. Mus. Darm- 
stadt, 1833, pt. il, p. 24 (Machatrodus); H. Falconer, 
Palzont. Mem., vol. ii, 1868, p. 459. 
cultridens (Cuvier), J. J. Kaup, zézd., p. 24, pl. i, f. 5 ; R. Lydek- 
ker, Cat. Foss. Mamm. B. M., pt. v, 1887, p. 310. 
Ursus cultridens, Cuvier, Ossem. Fossiles, ed. 2, vol. ii, 1824,. 
p. 516. 
Macherodus, E. R. Lankester, Geol. Mag., vol. vi, 1869, p. 440, 
and E. T. Newton, Geol. Mag. [2] vol. vii, 1880, p. 153, and 
Vert. Forest Bed (Mem. Geol. Surv., 1882), p. 21, pl. iv, f. 5 ; 
J. Backhouse and R. Lydekker, Quart. Journ. Geol. Soc., 
vol. xlii, 1886, p. 309, pl. x. [See also Mach@erodus latidens.| 
LOE. mt Bed; Kessingland. [Mandzb. ramus, J. Backhouse 
Coll. 
latidens, R. Owen, Brit. Foss. Mamm., 1846, p. 179, woodcuts 69, 
70; J. Morris, Cat. Brit. Foss., 1854, p. 360; W. Pengelly, 
Trans. Devon. Assoc., vol. iii, 1869, p. 483, and zézd., vol. v, 
1872, p. 165, and zézd., vol. vii, 1875, p. 247, and Geol. Mag., 
vol. vill, 1871, p. 42, and Rep. Brit. Assoc., 1872 (1873), Sect., 
p- 119; W. B. Dawkins and W. A. Sanford, Brit. Pleist. 
Mamm., pt. iv (Pal. Soc., 1872), p. 184, pl. xxv, woodcuts 1-3 ; 
C. Lyell, Antiq. Man., ed. 4, 1873, p. 105, woodcuts 9, I0 ; 
W. B. Dawkins, Quart. Journ. Geol. Soc., vol. xxxili, 1877, 
PP. 590, 594, woodcut 3; R. Johnson, Trans. Norfolk and 
Norwich Nat. Soc., vol. ii (1877), p. 291; [#onz A. Savin, 
Proc. Norwich Geol. Soc., vol. i (1878), p. 28: see E. T. 
Newton, Vert. Forest Bed (Mem. Geol. Surv., 1882), p. 21] ; 
R. Lydekker, Cat. Foss. Mamm. B. M., pt. i, 1885, p. 44. 
Ursus cultridens, J. MacEnery (evrore), Cavern Researches, 
1859, pl. F. 
Loc. Caves; Cresswell Crags and Kent’s Hole. [Canine tooth 
from Kent’s Hole; Mus. R. Coll. Surgeons. ] 
meganthereon (Croizet and Jobert), wrongly quoted as British 
by J. Morris, Cat. Brit. Foss., 1854, p. 360. 
MARTES, Nilsson. v. Mustela. 
sylvatica, Nilsson. v. Mustela martes. 
MASTODON, Cuvier, Ann. du Muséum, vol. viii, 1806, p. 270 3 
E. D. Cope, Amer. Nat., 1889, p. I9I. 
TRILOPHODON H. Falconer, Quart. Journ. Geol. Soc., 
TETRALOPHODON vol. xiii, 1857, p. 313 (as subgenera). 
angustidens, Owen (70m Cuvier). v. Mastodon arvernensis. 
arvernensis, Croizet and Jobert, Ossem. Foss. Puy-de-Dome, 
1828, p. 138; R. Lydekker, Quart. Journ. Geol. Soc.. vol. xu, | 
1886, p. 365, and Cat. Foss. Mamm. B. M., pt. iv, 1886, p. 52. 
Mlastodon (/etralophodon) arvernensts, H. Falconer, Quart. 
Journ. Gecl. Soc., vol. xiii, 1857, p. 360, pl. xii, f. -4 ; R. John- 
son, Trans. Norfolk and Norwich Nat. Soc., vol. 11(1877), p.282.- 
