PISCES. Ley 
PYCNODUWS (continued)— 
rudis, J. Phillips, Geol. Oxford, 1871, p. 180, woodcut xl, f. 1 
(name and fig. only). [? Genus. ] 
Loc. Stonesfield Slate. [Mandib. ramus ; Oxford Mus.] 
rugulosus, Agassiz. v. Mesodon rugulosus. 
toliapicus, L. Agassiz, Poiss. Foss., vol. ii, pt. ii (1843), p. 196, 
pl. Ixxiia, f. 55; J. Morris, Cat. Brit. Foss., 1854, p. 343; 
P. M. G. Egerton, Geol. Mag. [2] vol. iv, 1877, p. 53. 
Pertodus koenigiz, L. Agassiz, Poiss. Foss., vol. ii, pt. ii (1843), 
p. 201, pl. Ixxii @, f. 61,62; F. Dixon, Geol. Sussex, 1850, 
p. 205, pl. x, f. 13; J. Morris, Cat. Brit. Foss., 1854, p. 337. 
{Abraded mandib. dentition ; Brit. Mus. ] T. (Periodius.) 
Loc. London Clay; Sheppey. [Mandib. dentition ; Oxford Mus. ] 
trigonus, Agassiz. v. Mesodon trigonus. 
tristychius, L. Agassiz, Poiss. Foss., vol. ii, pt. ii (1843), p. 199 
(name only). [? A/esodon.] 
Loc. ?Stonesfield Slate. [Teeth ; 0/77 Bristol Mus. ] 
umbonatus, Agassiz. wv. Mesodon umbonatus. 
PYGOPTERWUS, L. Agassiz, Poiss. Foss., vol. 1i, pt. ii (1834), p. 74 ; 
R. H. Traquair, Quart. Journ. Geol. Soc., vol. xxxiii, 1877, 
P- 574- 
bucklandi, Hibbert. wv. Elonichthys bucklandi. 
greenocki, Agassiz. wv. Nematoptychius greenocki. 
jamesoni, L. Agassiz, Poiss. Foss., vol. ii, pt. ii (1843), p. 78 
(name only). 
Loc. Calcif. Sandst. ; Burdiehouse. 
latus, P. M.G. Egerton, in King’s Permian Foss. (Pal. Soc., 1850), 
p. 233, pl. xxiv, f. 1; J. Morris, Cat. Brit. Foss., 1854, p. 343; 
| R. H. Traquair, Quart. Journ. Geol. Soc., vol. xxxiil, 1877, 
P- 575: 
Loc. Magnesian Limest.; Ferry Hill, Durham. [Fish; Brit. 
| Mus. | 
mandibularis, L. Agassiz, Poiss. Foss., vol. ii, pt. i (1834), p. 76, 
pls. lili, luia@; W. King, Permian Foss. (Pal. Soc., 1850), 
| p. 232, pl. xxiii, f. 1; J. Morris, Cat. Brit. Foss., 1854, p. 343 ; 
| F. M‘Coy, Brit. Palzoz. Foss. (1855), p. 608 ; R. H. Traquair, 
Quart. Journ. Geol. Soc., vol. xxxili, 1877, p. 575. 
| ‘Unknown fish,’ A. Sedgwick, Trans. Geol. Soc. [2] vol. iii (1829), 
| p- 118, pl. x. 
| Nemopteryx mandibularis, L Agassiz, Neues Jahrb., 1833 
33; 
p- 476. 
| Pygopterus sculptus, L. Agassiz, Poiss. Foss., vol. ii, pt. ii (1834), 
|| P- 77. 
Pygopterus scoticus, L. Agassiz, tbid., pt. i, p. 10; H. G. Bronn, 
Leth. Geogn., ed. 2, vol. i, 1837, p. 128. 
Loc. ao Limest.; Durham. [Fish; 0/77 Miss Surtees 
Coll. 
