REPTILIA. 265 
PLATEMYS (continued)— 
sp., R. Owen, Rept. Weald. and Purb. Form., pt. i (Pal. Soc., 1853), 
B24, .ploix, f. 2; J. Morris, Cat. Bint. Foss. 1854, p. 352. 
Genus non det. (R. Lydekker, Cat. Foss. Rept. B. M., pt. 111, 
1889, p. 202). 
Loc. Wealden; Tilgate Forest. [Right hypoplastron ; Brit. 
Mus., no. 2336. ] 
PLATYCHELYS, A. Wagner, Abh. k. bay. Akad. Wiss., vol. 
Vii, pt. 1, 1853, p. 242. 
? anglica, R. Lydekker, Cat. Foss. Rept. B. M., pt. iii, 1889, 
p. 217, woodcut 49. 
L Loc. M. Purbeck; Durdlestone Bay. [Portion of carapace; 
Brit. Mus. } 
PLEIOSAURUS, Owen. v. Pliosaurus. 
PLESIOCHELYS, L. Riitimeyer, Neue Denkschr. schweiz. Ges. 
Nat., vol. xxv, art. 2, 1873, p. 28. 
brodiei, R. Lydekker, Quart. Journ. Geol. Soc., vol. xlv, 1889, 
p. 238, woodcuts 4, 5, and Cat. Foss. Rept. B. M., pt. ii, 
1889, p. 201. 
Plesiochelys valdensis, R. Lydekker and G. A. Boulenger (ars, 
errore), Geol. Mag. [3] vol. iv, 1887, p. 272. 
Loc. Wealden; Atherfield, I. of Wight, and Hastings. [Shell ; 
P. B. Brodie Coll. 
latiscutata (Owen), Lydekker and Boulenger. wv. Hylaochelys 
latiscutata. 
valdensis, R. Lydekker, Quart. Journ. Geol. Soc., vol. xlv, 1889, 
p. 239, and Cat. Foss. Rept. B. M., pt. iii, 1889, p. 199. 
Plesiochelys sancta-verene (L. Ritimeyer), G. A. Boulenger 
and R. Lydekker, Geol. Mag. [3] vol. iv, 1887, p. 272 
(errore). 
Loc. Wealden; I. of Wight. [Shell; Brit. Mus.] 
? sp., R. Lydekker, Cat. Foss. Rept. B. M., pt. iii, 1889, p. 198. 
Loc. Kim, Clay; Weymouth. [Neurals and head of humerus; 
Brit. Mus., nos. 43570, 44178 2—y-z.| 
sp., R. Lydekker, zézd., p. 199. 
Loc. Purbeck; Swanage. [Hyo-, hypo-, and xiphi-plastra ; 
Brit. Mus., nos. R. 1615, 21351 +, and 23407 x.] 
sp-., R. Lydekker, zé7d., p. 202. 
Loc. Wealden; Cuckfield. [Costal ; Brit. Mus., no. 37715.] 
? sp., R. Lydekker, zd/d., p. 202. 
Chelone ? costata, R. Owen (pars), Rept. Weald. and Purb. 
| Farm,, pt..1 (Pal. Sec., 1853); p.ii1,: pl. x, f-4. 
Loc. Wealden; Cuckfield. [Hypoplastron; Brit. Mus., no. 2298.] 
