134 BRITISH FOSSIL VERTEBRA TA. 



OEODUS (continued)— 



subteres (Agassiz), Davis, v. Orodus ramosus. 



? tenuis, J. W. Davis, ibid. (1883), p. 399, pi. li, f. 14 ; A. S. Wood- 

 ward, Cat. Foss. Fishes B. M., pt. i, 1889, p. 236. 

 LOC. L. Carb. Limest. ; Arrmgh. [Abraded tooth ; Brit. Mus.] 



OROGXATHUS, L. Agassiz, Poiss. Foss., vol. ii, pt. ii (1843), pp. 

 83, 105 (name only). 



coiiidens, L. Agassiz, ibid., p. 162 (name only). 



LOC. Coal-Meas. ; Carluke. T. 



OBTHACAXTHUS, Agassiz. v. Pleuracanthus. 

 cyliildricus, Agassiz. v. Pleuracanthus cylindricus. 



OBTKACODUS, A. S. Woodward, Cat. Foss. Fishes B. M. 3 pt. i, 

 1889, p. 349. 

 Sphexodus, L. Agassiz (non Sphcnodon, Gray, i83i,non Sphe- 

 nodon, Lund, 1839), Poiss. Foss., vol. iii (1843), p. 288. 



sp., A. S. Woodward, Geol. Mag. [3] vol. vi, 1889, p. 362. 



LOC. Coral Rag ; Malton, Yorkshire. [Teeth ; Malton Mus.] 



OBTHAGOBISCUS, J. G. Schneider, Blochii Syst. Ichthy., 1801, 

 p. 509 (Orthragoriscus). 

 sp., F. Dixon, Geol. Sussex, 1S50, descr. to pi. xxxii, f. 3, 4 ; J. 

 Morris, Cat. Brit. Foss., 1854, p. 335. Che/onian dentary 

 bone, A. S. Woodward, Proc. Geol. Assoc, vol. x (1888), 

 p. 276. 

 LOC. Chalk ; Sussex. [Brit. Mus.] 



OBTHOGXATHUS, T. P. Barkas. v. Rhizodopsis. 

 reticuloses, T. P. Barkas. v. Rhizodopsis sauroides. 



OSMEROIDES, L. Agassiz, Poiss. Foss., vol. v, pt. i (1834), p. 14, 

 and pt. ii (1843), p. 103. 



: crassus, F. Dixon, Geol. Sussex, 1850, p. 376 ; J. Morris, Cat. 

 Brit. Foss., 1854, p. 335 ; A. S. Woodward, Proc. Geol. Assoc, 

 vol. x (1888), p. 322. 

 LOC. Chalk; Sussex. [Anterior portion of fish ; Brighton Mus.] 



granulatus, L. Agassiz, Poiss. Foss., vol. v, pt. i (1834), p. 14 

 (name only) ; J. Morris, Cat. Brit. Foss., 1854, p. 335. 

 LOC. Chalk ; Lewes. [? Pomognathus eupterygius.] 



lewesiensis. L. Agassiz, Poiss. Foss., vol. v, pt. i (1834), p. 14, 

 and pt. ii (1843. p. 105. pi. lx b, f. 1, 2, 5-7, pi. \xc (non 

 pi. Lx b, f. 3, 4 : see Pomognathus cuptcrygius) ; J. Morris, 

 Cat. Brit. Foss., 1854, p. 335 ; A. S. Woodward, Proc. Geol. 

 Assoc, vol. x (1888;. p. 322. 

 Sal/no lewesiensis. G. A. Mantell, Foss. South Downs, 1822, 

 p. 235, pi. xl, f. 1, pi. xxxiii. f. 12. 



