REPTILIA. 293 



TEACHY&SP2S, H. von Meyer, Neues Jahrb., 1843, p. 699. 



haritoniensis, R. Lydekker, Ann. Mag. Nat. Hist. (6] vol. iii, 

 1889, p. 54, and Cat. Fojs. Rept. B. M., pt. iii, 1889, p. 131. 

 LOC. U. Eocene ; Hordwell. [Marginal scute ; Brit. Mus.] 



TRACHYDEBMOCHELYS, H. G. Seeley, Index to Aves, 

 etc., Woodwardian Mus., 1869, pp. xix, 35 (name only). 



2>hlijctcenus y H. G. Seeley, ibid., pp. xix, 35 (name only). 



LOC. Cambridge Greensand. [Fragments of carapace ; Wood- 

 wardian Mus.] T. 



TRETOSTEH.NUM, R. Owen, Rep. Brit. Assoc, 1841 (1842), 

 p. 165 ( Ttetosternon). 



bakewelli (Mantell), J. Morris, Cat. Brit. Foss., 1854, p. 354 



{Tretoslernori) ; R. Lydekker and G. A. Boulenger, Geol. 



Mag. [3] vol. iv, 1887, p. 273 ; R. Lydekker, Cat. Foss. Rept. 



B. M., pt. iii, 1889, p. 138, woodcut 33. 

 Tretosternon punctatum, R. Owen (errore), Rep. Brit. Assoc, 



1841 (1842), p. 167. 

 Trionyx bakewelli, G. A. Mantell, Geol. S. E. England, 1833, 



p. 255, woodcut. 

 Trionyx, G. A. Mantell, Illustr. Geol. Sussex, 1827, p. 61, 



pi. vi, f. 1, 3. 

 LOC. Wealden ; Tilgate and Cuckfield, Sussex. [Costal scute ; 



Brit. Mus.] 



punctatum, R. Owen, Rep. Brit. Assoc, 1841 (1842), p. 165; 

 R. Lydekker and G. A. Boulenger, Geol. Mag. [3] vol. iv, 

 1884, p. 273 ; R. Lydekker, Cat. Foss. Rept. 13. M., pt. i;i, 

 1889, p. 141. [See also Tretosternum bakewelli.\ 

 LOC. Wealden ; I. of Wight. M. Purbeck ; Durdlestone Bay, 

 Swanage. [Portions of shell ; unknown.] IF. 



sp., R. Lydekker, Cat. Foss. Rept. B. M., pt. iii, 1889, p. 140. 



LOC. Wadhurst Clay; Hastings. [Portions of shell; Brit. Mus., 

 no. R. 970.] 



TRZONVX, E. Geoffroy St. Hilaire., Ann. du Museum, vol. xiv, 

 1809, p. 1. 

 Aulacochelys, R. Lydekker, Ann. Mag. Nat. Hist. [6] vol. iii, 

 1889, p. 53, and Cat. Foss. Rept. B. M., pt. iii, 1889, p. 22. 



bakewelli, Mantell. v. Tretosternum bakewelli. 



barbarse, R. Owen, Rept. London Clay, pt. i (Pal. Soc, 1849), 

 p. 50, pi. xvi A; J. Morris, Cat. Brit. Foss., 1854, p. 354; 

 R. Lydekker, Cat. Foss. Rept. B. M., pt. iii, 1889, p. 13. 

 LOC. U. Eocene ; Hordwell. [Carapace ; Brit. Mus.] 



bowerbanki, R. Lydekker, Cat. Foss. Rept. B. M., pt. iii, 1889. 

 p. 19, woodcut 4. 

 Trionyx sp., R. Owen, Rept. London Clay, pt. i (Pal. Soc, 



