PISCES. 139 
PACHYCORMWUS (con/inued)— 
latirostris, L. Agassiz, Poiss. Foss., vol. ii, pt. ii (1843), p. 114 
(undefined). 
Loc. U. Lias; Whitby. 
latus, L. Agassiz, zb¢d., p. 114 (undefined). 
Loc. U. Lias; Whitby. [Imperfect fish ; Brit. Mus.] 
leptosteus, L. Agassiz, Zv7., p. 114 (name only). 
Loc. L. Lias; Lyme Regis. 
macropterus, L. Agassiz, zé¢d., p. 111, pl. lixa; recorded by 
J. F. Blake, in Tate and Blake, Yorksh. Lias, 1876, p. 260. 
Loc. U. Lias; Whitby. [/7sh, York Mus.] T. 
macrurus, L. Agassiz, Poiss. Foss., vol. ii, pt. ii (1843), p. 113, 
pl. Iviiia, f. 3; J. Morris, Cat. Brit. Foss., 1854, p. 336. 
Loc. L. Lias; Lyme Regis. [Tail ; Oxford Mus.] 
sp. From Oxford Clay ; Peterborough. [Portions of fishes ; Brit. 
Mus., Woodwardian Mus., and A. N. Leeds Coll.] 
PACHYRHIZODUS, F. Dixon (ex Agassiz, MS.), Geol. Sussex, 
1850, p. 374; E. D. Cope, Vert. Cret. Form. West (Rep. 
U.S. Geol. Surv. Territ., vol. ii, 1875), p. 220. 
MEGALODON, L. Agassiz (#02 Sowerby), Poiss. Foss., Feuill., 
p. 55 (1835) (pars). 
Hypsopon, L. Agassiz, Neues Jahrb., 1838, p. 108, and Poiss. 
Foss., Feuill., p. 104 (1837), and vol. v, pt. i (1843), pp. 8, 
99 (pars). 
RHAPHIOSAURUS, R. Owen, Trans. Geol. Soc. [2] vol. vi (1840), 
p. 413 (Raphiosauris). 
ACRODONTOSAURUS, J. W. Mason, Quart. Journ. Geol. Soc., 
vol. xxv, 1869, p. 444. 
basalis, F. Dixon, Geol. Sussex, 1850, p. 374, pl. xxxiv, f. 9, 10 ; 
J. Morris, Cat. Brit. Foss., 1854, p. 336. 
| Loc. Chalk; Steyning, Sussex. [Fragment of mandib. ramus ; 
| Brit. Mus. } rT. 
gardneri (Mason), A. S. Woodward, Proc. Geol. Assoc., vol. x 
(1888), p. 314. 
Hypsodon lewesiensis, L. Agassiz (pars), Neues Jahrb., 1839, p. 
120, and Poiss. Foss., Feuill., p. 104 (1837), and vol. v, pt. i 
(1943), p: 09, ply xxve, f. 1, 2, 4, pl ave, £4, (55 E. T. 
Newton, Quart. Journ. Geol. Soc., vol. xxxili, 1877, p. 508. 
‘Reptile or Fish,’ Toulmin Smith, Lond. Geol. Journ. (1846), 
p. 21, woodcut. [Group of bones; Brit. Mus.] 
= | Acrodontosaurus gardnert, J. W. Mason, Quart. Journ. Geol. 
Soc., vol. xxv, 1869, p. 444, pl. xix. TT. (Acrodontosaurits.) 
Loc. Chalk; S.E. England. [Portion of mandib. ramus ; Brit. 
Mus. ] 
