166 BRITISH FOSSIL VERTEBRATA. 
PSZEPHODUS magnus (continued)— 
Lophodus didymus, J. W. Davis, zbzd. (1883), p. 407, pl. li, f. 28 
(pars). 
*Selachian Fish,’ J. Coutts, Trans. Geol. Soc. Glasgow, vol. vii 
(1883), p. 164. [Associated teeth ; Edinburgh Mus. ] 
? Lophodus sinuosus, J. W. Davis, Trans. Roy. Dublin Soc. [2] 
vol. i (1883), p. 409, pl. li, f. 28. [Tooth ; York Mus.] 
Loc. L. Carb. Limest. ; Armagh, Lanarkshire, Northumberland, 
and Gloucestershire. Carb. Limest. ; Ayrshire, Westmore- 
jand, Derbyshire, Denbighshire, and Flintshire. [Teeth ; 
Woodwardian Mus. | . 
salopiensis, A. S. Woodward, Cat. Foss. Fishes B. M., pt. i, 1889, 
Pe 182, ply vip Een; TS: 
Loc. Carb. Limest. ; Oreton, Shropshire. [Teeth ; Brit. Mus.] 
simplex, J. W. Davis, Geol. Mag. [3] vol. iii, 1886, p. 151, f. 1, 2- 
Loc. Carb. Limest.; Derbyshire. [Teeth ; T. Parker Coll.] 
sp., A. S. Woodward, Cat. Foss. Fishes B. M., pt. i, 1889, p. 184,. 
plawiy fz: 
Loc. L. Carb. Limest. ; Hook Point, Wexford. [Tooth ; Brit. 
Mus., no. 23712.]| 
sp., A. S. Woodward, zéz7., p. 184, pl. vi, f. 18. 
Loc. Carb. Limest.; Oreton, Shropshire. [Tooth ; Brit. Mus. 
no. P./227 c.| 
PSEUDOSPH ZRODON, Noetling. wv. Platylaemus. 
PSITTACODON, Agassiz. v. Edaphodon and Ganodus. 
faleatus, Agassiz. wv. Ganodus falcatus. 
mantellii, Agassiz. v. Edaphodon mantelli. 
psittacinus, Agassiz. wv. Ganodus psittacinus. 
sedgwickii, Agassiz. v. Edaphodon sedgwicki. 
PTERASPIS, T. H. Huxley, Quart. Journ. Geol. Soc., vol. xii, 1856, 
p. 100, and Rep. Brit. Assoc., 1858 (1859), Sect., p. 82 (emend. 
ex R. Kner, Haidinger’s Naturw. Abhandl., vol. i, 1847, p. 165); 
E. R. Lankester, Rep. Brit. Assoc., 1864 (1865), Sect., p. 58, 
and Quart. Journ. Geol. Soc., vol. xx, 1864, p. 194 (scales), 
and Fishes O. R. Sandst., pt. i (Pal. Soc., 1868), p. 28; 
? J. W. Salter, Quart. Journ. Geol. Soc., vol. xxiii, 1867, p. 333 
(tracks). 
banksii, Huxley and Salter. wv. Cyathaspis banksi. 
crouchi, E. R. Lankester (ex Salter, MS.), Rep. Brit. Assoc., 1864 
(1865), Sect. p. 58, and Fishes O. R. Sandst., pt. i (Pal. 
Soc., 1868), p: 30, pl. iti, pl. iv, £. 5, pl.-vi, £45 728, pl wa, 
f. 4, 8,11; A. S. Woodward, Proc. Zool. Soc., 1887, p. 478, 
woodcut. 
Loc. L. Old Red Sandst. (Cornstones) ; Herefordshire. [Head- 
shields ; Ludlow Mus., Brit. Mus., and Oxford Mus. ] 
