70 BRITISH FOSSIL VERTEBRATA. 



SIPTERUS valenciennesi [continued)— 



Diptcrus brachypygopterus, A. Sedgwick and R. I. Murchison, 



Trans. Geol. Soc. [2] vol. iii (1828), p. 143, pi. xvii, f. 1-3; 



F. M'Coy, Brit. Palaeoz. Foss. (1855), p. 592. [Fish ; Geol. 



Soc. London.] 

 Polyphractus platycephalus, L. Agassiz, Poiss. Foss. V. G. R. 



(1844), pp. 5, 29, pi. xxvii, f. 1, pi. xxxi, f. 5. [Cranial roof, 



and operculum ; Brit. Mus.] T. {Polyphractus.) 



Megalichthys prisons, L. Agassiz, Poiss. Foss., vol. i (1844), 



p. xxxiv (name only). 

 Dipterus platycephalus, C. H. Pander, Ctenodipt. devon. Syst., 



1858, p. 7, pi. i, f. 5, pi. ii, f. 2, 9, pi. iii, pi. iv, f. 23, 27, pi. v, 



f. 15-19, pi. vii, f. 5, 11. 

 LOC. L. Old Red Sandst. ; Caithness, Ross-shire, Cromarty, 



Nairnshire, and Banffshire. [Fishes ; Geol. Soc. London.] 



T. 

 DITAXIODUS, R. Owen, Geol. Mag., vol. iii, 1866, p. 107. 



impar, R. Owen, ibid., p. 107, pis. iv, v. 



LOC. Kim. Clay ; Oxfordshire and Wiltshire. [Jaws ; Brit. 

 Mus.] T. 



DITTODUS, Owen. v. Diplodus and Rhizodopsis. 

 divevgenSf Owen. v. Diplodus gibbosus. 

 2>arallelus, Owen. v. Rhizodopsis sauroides. 



DORYPTERUS, E. F. Germar, in G. von Miinster's Beitr. 

 Petrefakt., pt. v, 1S42, p. 35. 



horTmannl, E. F. Germar, ibid., p. 35, pi. xiv, f. 4 ; A. Hancock 

 and R. Howse, Quart. Journ. Geol. Soc, vol. xxvi, 1870, 

 p. 623, pis. xlii, xhii, and Nat. Hist. Trans. Northumb. and 

 Durham, vol. iv (1872), p. 243, pis. ix, x. 

 LOC. Marl-Slate; Midderidge. [Fishes; Newcastle-upon-Tyne 

 A J us.] T. 



DllEPAXEVHOIiUS, Egerton. v. Cestracion. 



canaHculatus, Egerton. v. Cestracion canaliculars. 

 sp. A. S. Woodward, v. Cestracion rugosus. 



E( If i:y l -S. L. Agassiz, Rep. Brit. Assoc, 1844 (1845), p. 308 (name 

 only . 

 politus, L. Agassiz, ibid., p. 30S (name only). 



LOC. London Clay ; Sheppey. T. 



ECHINODUS, J. W. Davis, Quart. Journ. Geol. Soc, vol. xl, 

 1884, p. 631. 

 paradoxus, J. W. Davis, ibid., p. 631, pi. xxvii, f. 7. 



LOC. Yoredale Rocks ; Wensleydale, Yorkshire. [Dermal fossil ; 

 York Mus.] T. 



