OSTEOLEPIDJE. 
379 
1844. Megalichthys maxillaris, L. Agassiz, ibid. p. 96. [Head ; Leeds 
Museum.] 
1844. Megalichthys hibberti, R. Garner, Nat. Hist. Statfordsh. p. 446, 
pi. E. fig. 10. 
1848. Centrodus striatulus, F. M‘Coy, Ann. Mag. Nat. Hist. [2] vol. ii. 
p. 4. [Tooth ; Woodwardian Museum, Cambridge.] 
1849. Megalichthys hibberti , W. C. Williamson, Phil. Trans, p. 450, 
pi. xli. fig. 15, pi. xlii. figs. 16-19. 
1853. Parabatrachus colei, R. Owen, Quart. Journ. Geol. Soc. vol. ix. 
p. 67, pi. ii. fig. 1. [Maxilla ; British Museum.] 
1855. Centrodus striatulus, F. M‘Coy, ibid. p. 611, pi. iii. &. fig. 1. 
1861. Megalichthys hibberti, J. W. Salter (ex Egerton, MS.), Foss. S. 
Welsh Coalfield (Mem. Geol. Surv.—Iron Ores Gt. Britain, 
pt. iii.), p. 224, pi. i. fig. 16. 
1866. Megalichthys, J. Young, Quart. Journ. Geol. Soc. vol. xxii. 
p. 607. 
1867. Gcinolodus sicula, R. Owen, Trans. Odontol. Soc. vol. v. p. 354, 
pi. vii. (assigned to Megalichthys by Hancock and Atthey, Nat. 
Hist. Trans. Northumb. and Durham, vol. iii. 1870, p. 90). [Micro, 
section of tooth; British Museum.] 
1868. Megalichthys, J. Young, Proc. Nat. Hist. Soc. Glasgow, vol. i. 
p. 174, pi. i. figs. 1-3. 
1873. Megalichthys, T. P. Barkas, Coal-Meas. Palseont. p. 25, figs. 70- 
82. 
1875. Megalichthys hibberti, J. Ward, [Proc.] N. Staffs. Nat. Field Club, 
p. 227, figs. 10,14. 
1876. Megalichthys hibberti, W. J. Barkas, Monthly Rev. Dental Sur- 
gery, vol. iv. pp. 59, 197, 251, figs, lxxi.-lxxix. 
1876. Megalichthys tuberculatus, W. J. Barkas, ibid. p. 61. [Decorti- 
.cated bones.] 
1878. Megalichthys hibberti, R. Etheridge, jun., Geol. Mag. [2] vol. v. 
p. 269. 
1884. Megalichthys hibberti, L. C. Miall, Quart. Journ. Geol. Soc. 
vol. xl. p. 347, woodc. figs. 1-4, 6. 
1884. Megalichthys hibberti, R. TI. Traquair, Proc. Roy. Phys. Soc. 
Edinb. vol. viii. p. 72, and Geol. Mag. [3] vol. i. p. 118. 
1885. Megalichthys hibberti, L. C. Miall, Description of the Remains 
of Megalichthys in the Leeds Museum. 
Ib90. Megalichthys hibberti, J. Ward, Trans. N. Staffs. Inst. Mining 
Engin. vol. x. p. 162, pi. ii. figs. 4, 23. 
Tyjoe. Head and anterior scales ; Leeds Museum. 
The type species, attaining a length of about 1*5. Head with 
opercular apparatus occupying one-fifth of the total length : 
parietal region ot cranium longer than the fronto-ethmoidal; length 
ol maxilla about three times as great as the depth of the posterior 
expansion; mandible long and slender, not less than five times as 
