196 BRITISH FOSSIL VERTEBRATA. 
VENUSTODUS (continued)— 
denticulatus (M‘Coy), A. S. Woodward, Cat. Foss. Fishes 
B. M., pt. i, 1889, p. 225. 
Chomatodus (Helodus) denticulatus, F. M‘Coy, Ann. Mag. Nat. 
Hist. [2] vol. ii, 1848, p. 124, and Brit. Palzoz. Foss. (1855), 
p- 618, pl. iii K, f. 9. 
Loc. L. Carb. Limest.; Armagh. [Tooth ; Woodwardian Mus.]} 
serratus (Davis), A. S. Woodward, Cat. Foss. Fishes B. M., pt. i, 
1889, p. 225, pl. i, f. 16, 17. 
Lophodus serratus, J. W. Davis, Trans. Roy. Dublin Soc. [2] 
vol. i (1883), p. 408, pl. li, f. 23, 24, and Quart. Journ. Geol. 
Soc., vol. xl, 1884, p. 627, pl. xxvii, f. 19. 
Loc. Yoredale Rocks ; Wensleydale. U. Carb. Limest.; South 
Derbyshire. [Teeth ; York Mus.] 
WARDICHTHYS, R. H. Traquair, Ann. Mag. Nat. Hist. [4] 
vol. xv, 1875, p. 266. 
eyclosoma, R. H. Traquair, zdz7d., p. 262, pl. xvi, f. 1-5, and 
Trans. Roy. Soc. Edinb., vol. xxix (1879), p. 361, pl. iv, 
f. 12-15 ; T. Stock, Ann. Mag. Nat. Hist. [5] vol. vii, 1881, 
p- 490. 
Loc. Calcif. Sandst.; Wardie, near Edinburgh. [Fish ; Edin- 
burgh Mus.] T. 
WODNIEA, G. von Miinster, Beitr. Petrefakt., pt. vi, 1843, p. 48. 
striatula, G. von Miinster, zdzd., p. 48, pl. i, f. 1; R. Howse, 
Guide Coll. Local Foss. Mus. Nat. Hist. Soc., Newcastle- 
upon-Tyne, 1889, p. 23. 
Loc. Marl-Slate; Thickley. [Sfzmes and shagreen; Newcastle- 
upon-Tyne Mus. and W. Dinning Coll.) T. 
XENACANTHUS, Beyrich. v. Pleuracanthus. 
gibbosus (Agassiz), Salter. wv. Diplodus gibbosus. 
XENODOLAMITIA, J. Leidy, Journ. Acad. Nat. Sci. Philad. [2] 
vol. viii (1877), p. 251. 
sp., A. S. Woodward, Cat. Foss. Fishes B. M., pt. i, 1889, p. 429. 
Loc. L. Chalk ; Guildford. [Tooth ; Brit. Mus., no. 49954.] 
Xiphias dixoni, Leidy. v. Protosphyrena ferox. 
XIPHODOLAMLA, Leidy. v. Notidanus sp. 
XYSTRODUWS, J. Morris and G. E. Roberts (ex Agassiz, MS.), 
Quart. Journ. Geol. Soc., vol. xviii, 1862, p. 101 (name only); _ 
J. W. Davis, Trans. Roy. Dublin Soc. [2] vol. iii (1883), 
p. 447; A. S. Woodward, Cat. Foss. Fishes B. M., pt. 1, 
1889, p. 192. 
angustus, Davis. v. Xystrodus striatus. 
