232 BRITISH FOSSIL VERTEBRATA. 
HYLZEZEOCHELYS, R. Lydekker, Quart. Journ: Geol. Soc., 
vol. xlv, 1889, p. 513, and Cat. Foss. Rept. B. M., pt. iii, 
1889, p. 185. 
? PLASTREMYS, R. Owen, in C. Parkinson, Quart. Journ. Geol. 
Soc., vol. xxxvil, 1881, p. 370. 
belli (Mantell), R. Lydekker, Cat. Foss. Rept. B. M., pt. iii, 1889, 
p. 190. 
Chelone belliz, G. A. Mantell, Medals of Creation, 1844, p. 776, 
woodcut 146, and zézd., ed. 2, 1854, p. 735, woodcut 240, and 
Petrifactions, 1851, p. 156, woodcut 33. 
Chelone costata, R. Owen (pars), Rept. Weald. and Purb. 
Form.; “pt. i (Pall Soe:, 1853); -p/ 10, pl. vinireiertion) of 
carapace; Brit. Mus.] 
Emys mantelli, J. E. Gray, Syn. Rept., 1831, p. 33. 
Clemmys 2 manteliit, L. Fitzinger, Ann. Wien. Mus., vol. i, 1835, 
p. 126. 
Chelone mantelli, J. Morris, Cat. Brit. Foss., 1854, p. 348. 
Platemys mantelli, R. Owen, Rep. Brit. Assoc., 1841 (1842), 
p. 167, and Rept. Weald. and Purb. Form., pt. i (Pal. Soc., 
1853), p. 11, pl. ix, f. 1; J. Morris, Cat. Brit. Foss., 1854, 
p. 351. [Right hyoplastron ; Brit. Mus.] 
Platemys dixont, R. Owen, Rept. Weald. and Purb. Form., pt. i 
(Pal. Soc, 1853), p: 12, pl. ax, f. 3%J.aMorris, ‘Cat. Brie 
Foss., 1854, p. 351. [Left hyoplastron ; Brit. Mus.] 
‘Emys de Sussex,’ Cuvier, Ossem. Fossiles, ed. 2, vol. v, pt. 1i, 
1824, p. 232. 
Loc. Wealden ; Tilgate Forest. [Portion of costal; Brit. Mus.] 
emarginata (Owen), R. Lydekker, Cat. Foss. Rept. B. M., pt. iii, 
1889, p. 189. 
Pleurosternon emarginatum, R. Owen (pars), Rept. Weald. and 
Purb. Form., pt.i (Pal. Soc., 1853), p. 6, pl. iv; J. Morris 
(pars), Cat. Brit. Foss., 1854, p. 352. 
Platemys emarginata, G. A. Maack, Palezontographica, vol. xviil 
(1869), p- 293. 
Loc. Purbeck; Swanage. [Carapace.] 
? lata (Owen), R. Lydekker, Cat. Foss. Rept. B. M., pt. iii, 1889, 
p. 195. 
Plastremys lata, R. Owen, Quart. Journ. Geol. Soc., vol. xxxvii, 
1881, p. 370. T. (Plastremys.) 
Loc. U. Greensand; St. Lawrence Cliff, I. of Wight. [Imperfect 
shell ; Brit. Mus.] 
latiscutata (Owen), R. Lydekker, Quart. Journ. Geol. Soc., 
vol. xlv, 1888, p. 513, and Cat. Foss. Rept. B. M., pt. itl, 
1889, p. 186, woodcut 43. 
Pleurosternon latiscutatum, R. Owen, Rept. Weald. and Purb. 
Form., pt. i (Pal. Soc., 1853), p. 9, pl. i; J. Morris, Cat. Brit. 
Foss., 1854, p. 352. 
