80 BRITISH FOSSIL VERTEBRATA. 
EVUKERASPIS pustuliferus (continued)— 
Plectrodus pustuliferus, FE. R. Lankester, Rep. Brit. Assoc., 
1867 (1868), Sect., p. 63. 
Pterygotus pustulifer, J. W. Salter, Quart. Journ. Geol. Soc., 
vol. ix, 1853, p. 14 (referred to Crustacea). 
Loc. Downton Sandst.; Ludlow. [Cornua of head-shields ; 
Brit. Mus. (pars). ] =. 
sp.: Plectrodus, P. M. G. Egerton, Quart. Journ. Geol. Soc., vol. 
xiii, 1857, p. 288, pl. x, f. 2-4. 
Loc. Downton Sandst.; Ludlow. [Portions of cornua ; Ludlow 
and Brit. Mus.] 
EURYCORMWUS, A. Wagner, Abh. k. bay. Akad. Wiss., math.- 
phys. Cl., vol. ix (1863), p. 707. 
grandis, A. S. Woodward, Geol. Mag. [3] vol. vi, 1889, p. 449,. 
and Rep. Brit. Assoc., 1889. 
Loc. Kim. Clay; Ely. [Head ; Woodwardian Mus.] 
EURYGNATHUS, L. Agassiz (zon Wollaston), Rep. Brit. Assoc., 
1844 (1845), p. 307 (name only). 
cavifrons, L. Agassiz, 7é¢d., p. 307 (name only). 
toc. London Clay; Sheppey. [Imperfect skull; Brit. Mus.] T.. 
EURYGNATHUS, Davis. v. Enchodus. 
EURYNOTWS, L. Agassiz, Poiss. Foss., vol. ii, pt.i (1835), p- 153; 
P. M. G. Egerton, Quart. Journ. Geol. Soc., vol. vi, 1850, 
p. 2; J. Young, Quart. Journ. Geol. Soc., vol. xxii, 1866, 
p- 314; R. H. Traquair, Trans. Roy. Soc. Edinb., vol. xxix, 
1879, p. 343. 
PLECTROLEPIS, L. Agassiz, Poiss. Foss., vol. ii, pt. 1 (1843), 
p. 306 (name only); P. M. G. Egerton, Quart. Journ. Geol. 
Soc., vol. vi, 1850, p. 3. 
? aprion (?), R. H. Traquair, Trans. Roy. Soc. Edinb., vol. xxx, 1881, 
Pp. 5a spl-v, f. 20. 
Loc. Calcif. Sandst. (Cement-stone Group); Tweeden Burn, 
Liddesdale, Dumfriesshire. L. Carb.; Moyheeland, Drapers- 
town, Ireland. [Scales ; Geol. Surv. Scotland.] 
crenatus, L. Agassiz, Poiss. Foss., vol. ii, pt. i (1835), p. 154, 
pls. xiv a, 6; S. Hibbert, Trans. Roy. Soc. Edinb., vol. xiii 
(1835), pl. vii, f. 4 ; J. Morris, Cat. Brit. Foss., 1854, p. 326 ; 
R. H. Traquair, Trans. Roy. Soc. Edinb., vol. xxix, 1879, 
Pp- 349, pl. iil, f. 1-16, and zdzd., vol. xxx, 1881, p. 54. 
Plectrolepis rugosus, L. Agassiz, Poiss. Foss., vol. ii, pt. 1 (1843),. 
p. 306 (name only); P. M. G. Egerton, Quart. Journ. Geol. 
Soc., vol. vi, 1850, p. 4; J. Morris, Cat. Brit. Foss., 1854, 
p. 339. [Fish; Brit. Mus.] T. (Plectrolepis.): 
