184 BRITISH FOSSIL VERTEBRATA. 
SCYLLIIUM (continued)— 
antiquum (Agassiz), A. S. Woodward, Cat. Foss. Fishes B. M., 
pt. 1, 1889, p. 340. 
Scylliodus antiguus, L. Agassiz, Poiss. Foss., vol. iii (1843), 
p. 378, pl. xxxvill, f. 1, 3 (0m f. 2). 
Loc. L. Chalk; Kent. [Anterior portion of fish ; Brit. Mus.] 
dubium, A. S. Woodward, Cat. Foss. Fishes B. M., pt. i, 1889, 
p: 341 ¢plixvi, 7; 8: 
Loc. L. Chalk; Dover. [Teeth; Brit. Mus.] 
Sp.: vertebre described by C. Hasse, Palzontographica, vol. xxxi 
(1884), p. 7, pl. ii, f. 10, 11, and compared with the recent 
S. edwardst. 
Loc. U. Chalk; Dorking, Surrey. [Vertebre ; Anat. Inst. 
Univ. of Breslau. | 
SELACHE, Cuvier. wv. Cetorhinus. 
maxima (Linneus). wv. Cetorhinus maximus. 
?sp.: F. Dixon, Geol. Sussex, 1850, p. 110, pl. xi, f. 25. [Probably a 
malformed tooth of Odontaspis.| 
Loc. Bracklesham Beds. [Tooth; Brit. Mus.] 
SEMIONOTUWS, L. Agassiz, Neues Jahrb., 1832, p. 144, and Poiss. 
Foss., vol. 11, pt. i (1837), p. 222 
brodiei, E. T. Newton, Quart. Journ. Geol. Soc., vol. xlili, 1887, 
p. 539, pl. xxi, f. 1-8. 
Loc. U. Keuper; Shrewley, Warwick, and Colwick Wood, 
Nottingham. [Imperfect fishes ; P. B. Brodie Coll.] 
joassi, A. S. Woodward, Ann. Mag. Nat. Hist. [5] vol. xx, 1887, 
p. 179, pl. vili. [Genus doubted by W. Deecke, Palzonto- 
graphica, vol. xxxv (1889), p. 103.] 
Loc. L. Oolite; Brora, Sutherlandshire. [Fish; Dunrobin 
Mus. } 
manseli, Egerton. 7. Lepidotus manseli. 
rhombifer, Agassiz. v. Eugnathus latus. 
SILURUWS, Linnzus, Syst. Nat., ed. 12, vol. i, 1766, p. 501. 
egertoni, Dixon. v. Arius egertoni. 
SPHZRODUS, Agassiz. v. Lepidotus. 
gigas, Agassiz. v. Lepidotus maximus. 
mammillaris, Agassiz. wv. Gyrodus cretaceus. 
SPHAGODUS, L. Agassiz, in Murchison’s Silur. Syst. 1839, 
p. 606. 
pristodontus, L. Agassiz, zid., p. 606, pl. iv, f. 1-3. 
‘Shagreen,’ J. Morris, Cat. Brit. Foss., 1854, p. 344. 
Loc. U. Ludlow Bone-bed. [Dermai tubercles.] T.. 
