PISCES. 69 
DIPLOPTERUS (continued)— 
gracilis, M‘Coy. v. Diplopterus agassizi. 
macrocephalus, Agassiz. v. Diplopterus agassizi. 
robertsoni, Agassiz. v. Megalichthys laticeps. 
DIPRIACANTHUS, F. M‘Coy, Ann. Mag. Nat. Hist. [2] vol. ii, 
1848, p. 121, and Proc. Camb. Phil. Soc., vol. i (1848), p. 65. 
faleatus, M‘Coy. v. Erismacanthus jonesi. 
stokesi, [-ii] F. M‘Coy, Ann. Mag. Nat. Hist. [2] vol. ii, 1848, 
p. 121, and Brit. Palzoz. Foss. (1855), p. 627, pl. ili K, f. 18; 
[-ii] J. Morris, Cat. Brit. Foss., 1854, p. 325; [-ii] J 
Davis, Trans. Roy. Dublin Soc. [2] vol. i (1883), p. 360, pl. 
xlvili, f. 10. . 
Boe. L. can Limest.; Armagh. [Spine ; Woodwardian Mus.] 
DIPTERONOTUS, P. M. G. Egerton, Quart. Journ. Geol. Soc., 
vol. x, 1854, p. 369. [Name inappropriate, the dorsal fin 
being apparently divided by accident in breaking of matrix.] 
cyphus, P. M.G. Egerton, 762., p. 369, pl. xi; J. Morris, Cat. 
Brit. Foss., 1854, p. 325. 
Loc. eas Bromsgrove. [Fish ; Mus. Pract. Geol.] Tr. 
DIPTERUS, A. Sedgwick and R. I. Murchison, Trans. Geol. Soc. 
[2] vol. iii (1828), p. 143; H. Miller, Footprints of Creator, 
1849, p- 59, woodcuts 18-22; R. H. Traquair, Ann. Mag. 
Nat. Hist [5] vol. ii, 1878, p. 1. 
CATOPTERUS, L. Agassiz, Poiss. Foss., vol. ii, pt. i (1833), p. 3. 
POLYPHRACTUS, L. Agassiz, Poiss. Foss. V. G. R. (1844), pp. 5,29. 
brachypygopterus, Sedgwick and Murchison. v. Dipterus 
valenciennesi. 
macrolepidotus, Sedgwick and Murchison. wv. Thursius macro- 
lepidotus. 
macropterus, R. H. Traquair, Geol. Mag. [3] vol. v, 1888, 
p- 508, and zé7d. [3] vol. vi, a8o: p- 97, pl. il. 
ei L. Old Red Sandst.; s John o’ Groats, Caithness. [Fish; 
Edinburgh Mus. } 
macropygopterus, Sedgwick and Murchison. fv. Dipterus 
valenciennesi. 
platycephalus, Pander. vw. Dipterus valenciennesi. 
valenciennesi, A. Sedgwick and R. J. Murchison, Trans. Geol. 
Soc. [2] vol. iii (1828), p. 143, pl. xvi, f.1-3; [-ii] R. H. 
Traquair, Geol. Mag. [3] vol. v, 1888, p. 507. 
Catopterus analis, L. Agassiz, Poiss. Foss., vol. ii, pt. i (1833), p. 3- 
T. (Catopterus.) 
Dipterus macropygopterus, A. Sedgwick and R. I. Murchison, 
Trans. Geol. Soc. [2] vol. iii (182 8), p. 143, pl. xy, f. 1-3; F. 
M‘Coy, Brit. Palzeoz. Foss. (1855), p. 592. [Fish ; Geol. 
Soc. London. | 
