| 122 BRITISH FOSSIL VERTEBRATA: 
METOPACANTHUS, Zittel. v. Myriacanthus. 
orthorhinus (Egerton), Zittel. wv. Myriacanthus granulatus. 
MICROBRACHIUS, R. H. Traquair, Geol. Mag. [3] vol. v, 
1888, p. 510. 
dicki, R. H. Traquair, 7477, p. 510, and Ann. Mag. Nat. Hist. 
[6] vol. ii, 1888, p. 502, pl. xviii, f. 7, 8. 
Pterichthys dickiz, C. W. Peach, Rep. Brit. Assoc., 1867 (1868), 
Sect., p. 72 (name only). 
Loc. L. Old Red Sandst.; John-o’-Groats, Caithness. [Imper- 
fect fish ; Edinburgh Mus. | T.. 
MICROCONODUS, Traquair. v. Gonatodus. 
ammolyneuxi, Traquair. v. Gonatodus molyneuxi. 
MICRODON, L. Agassiz, Poiss. Foss., vol. ii, pt. ii (1843), p. 204. 
nuchalis, Dixon. v. Platax nuchalis. 
occipitalis, F. Dixon, Geol. Sussex, 1850, p. 369, pl. xxxii*, f. 2 5 
J. Morris, Cat. Brit. Foss., 1854, p. 333. Pycnodont genus 
non det., A. S. Woodward, Proc. Geol. Assoc., vol. x (1888), 
| p- 308. 
Loc. Chalk; Lewes. [Fragment of fish ; Brighton Mus.] 
pagoda (Blake), A. S. Woodward, Geol. Mag. [3] vol. vi, 1889, 
Pp. 454- 
Pycnodus pagoda, J. ¥. Blake, Quart. Journ. Geol. Soc., vol. 
Xxxvl, 1880, p. 228, pl. x, f. Io. 
Loc. Portland Stone ; Upway, near Weymouth. [Vomer.] 
quincuncialis: Pyciodus guincuncial?s, J. F. Blake, Quart. 
Journ. Geol. Soc., vol. xxxi, 1875, p. 223; R. Damon, Geol. 
Weymouth, ed. 3, 1888, Suppl., pl. xi, f. 10. 
Loc. L. Kim. Clay ; Weymouth. [Vomer; Brit. Mus.] 
radiatus, L. Agassiz, Poiss. Foss., vol. ii, pt. ii (1843), p. 208, 
pl. lxix ¢, f. 1,2; R. Owen, Odontogr. (1841), p. 73, pl. xliil, 
i 3: Ja Mortis, ‘Cat! Brats'Foss., 1854, p2333: 
Loc. Purbeck ; Swanage. [Fishes ; o//m H. E. Strickland and. 
Johnson Colls. | 
trigonus, Agassiz. v. Mesodon trigonus. 
MIOGANODUS, Owen. v.Loxomma. [AMPHIBIA.] 
laniarius, Owen. v. Loxomma allmanni. {AMPHIBIA.] 
MITRODUS, Owen. v. Gyracanthus. 
quadricornis, R. Owen, Trans. Odontol. Soc., vol. v, 1867, p. 338, 
pl.iii. ‘Tubercles of Gyracantius, A. Hancock and T. Atthey, - 
Nat. Hist. Trans. Northumb. and Durham, vol. ii (1870), 
p- 110. 
iy Loc. Coal-Meas.; Newsham. [Micro. section of dermall 
tubercle; Brit. Mus.] T.. 
