144 BRITISH FOSSIL VERTEBRATA. 
PETALODUWS (continued)— 
hastingsie, L. Agassiz, Poiss. Foss., vol. iii (1843), pp. 174, 384 
(name only); [-ii] F. M ‘Coy, Brit. Paleoz. Foss. (1855), p. 635 ; 
W. H. Baily, Figs. Char. Brit. Foss. (1875), p. 120, pl. xii, 
£33597 Davis, Trans. Roy. Dublin Soc. [2] vol. i (1883), 
p. 493, pl. lix, f. 16, 17, 19 (on f. 18, 20, 21), and Geol. Mag. 
[3] vol. iti, 1886, p. 149; A. S. Woodward, Cat. Foss. 
Fishes B. M., pt. i, 1889, p. 44. [Non P. hastingsiz, Owen ; 
see Petalodus acuminatus and Petalorhynchus psittacinus. | 
Petalodus levissimus, L. Agassiz, Poiss. Foss., vol. iii (1843), 
pp. 174, 384 (mame only). 
Loc. L. Carb. Limest.; Armagh and Tyrone. ? U. Carb. 
Limest.; Derbyshire, Yorkshire, and Northumberland. 
[Teeth.] 
inequilateralis, Davis. v. Petalodus acuminatus. 
lteevissimus, Agassiz. v. Petalodus hastingsiz. 
? lamelliformis: Chomatodus lamelliformis, J. W. Davis, Quart. 
Journ. Geol. Soc., vol. xl, 1884, p. 625, pl. xxvii, f. 23. 
Loc. Yoredale Rocks; Wensleydale, Yorkshire. [Tooth ; 
York Mus. ] 
linearis (Agassiz), A. S. Woodward, Cat. Foss. Fishes B. M., 
pt. i, 1889, p. 45. 
Chomatodus linearis, L. Agassiz, Poiss. Foss., vol. tii (1838), 
p. 108, pl. xii, f. 6, 9, 10 (?f. 5, 11, zon f. 7, 8, 12, 13). 
(Psammodus on plate.) 
Loc. L. Limest. Shales (Bone-bed); Bristol. [Teeth; Bristol 
Mus. } 
? lobatus, Etheridge, jun. wv. Ctenoptychius lobatus. 
marginalis, Davis. v. Polyrhizodus magnus. 
psitiacinus, M‘Coy. v. Petalorhynchus psittacinus. 
radicans, Agassiz. wv. Polyrhizodus magnus. 
rectus, Agassiz. wv. Polyrhizodus magnus. 
recurvus, J. W. Davis, Trans. Roy. Dublin Soc. [2] vol. i (1883), 
Pp. 497, pl. lx, f. 2. 
Loc. L. Carb. Limest.; Bristol. [Tooth ; o/s# Enniskillen Coll.] 
rhombus, M‘Coy. wv. Petalodus acuminatus. 
sagittatus, M‘Coy. vw. Petalorhynchus psittacinus. 
serratus (M‘Coy), Owen. v. Ctenoptychius serratus. 
(new variety), W. J. Barkas, Monthly Rev. Dental Surgery, 
vol. ii, 1874, p. 537, f. xxvil, xxvii. 
Loc. Coal-Meas. ; Northumberland. 
PETALORHYNCHWUS, |. S. Newberry and A. H. Worthen (ex 
Agassiz, MS.), Pal. Illinois, vol. ii, 1866, p. 32. 
? benniei, Etheridge, jun. v. Pristodus benniei. 
