1 64 BRITISH FOSSIL VERTEBRATA. 



PSABE$£OI$I7S rug'osus {continued) — 



J. Morris and G. E. Roberts, Quart. Journ. Geol. Soc, vol. 

 xviii, 1862, p. 102 ; R. Etheridge, jun., Geol. Mag. [2] vol. 

 iv, 1877, p. 308, pi. xiii, f. 7-9 ; J. W. Davis, Trans. Roy. 

 Dublin Soc. [2] vol. i (1883), p. 459, pis. Ivi, lvii, and Quart. 

 Journ. Geol. Soc, vol. xl, 1884, p. 629, and Geol. Mag. [3] 

 vol. iii, 1886, p. 156 ; A. S. Woodward, Cat. Foss. Fishes 

 B. M., pt. i, 1889, p. 100. 



Psammodus porosus, L. Agassiz, Poiss. Foss., vol. iii (1838), 

 p. 112, pi. xiii, f. 1-18 ; J. E. Portlock, Rep. Geol. London- 

 derry, 1843, p. 465, pi. x'w a, f. 2 ; J. Morris, Cat. Brit. Foss., 

 1854, p. 341 ; W. H. Baily, Figs. Char. Brit. Foss., 1875, 

 p. 120, pi. xli, f. 9. [Abraded teeth ; Bristol Mus.] 



Psammodus rugosus, var. porosus, F. M'Coy, Brit. Palaeoz. 

 Foss. (1855), p. 644. 



Psammodus canaliculatus, F. M'Coy, Ann. Mag. Nat. Hist. [2] 

 vol. ii, 1848, p. 122, and Brit. Palaaoz. Foss. (1855), p. 643, 

 pi. iii G, f. 12; J. Morris, Cat. Brit. Foss., 1854, p. 340. 

 [Tooth ; Woodward ian Mus.] 



LOC. L. Carb. Limest. ; Gloucestershire, Armagh, Sligo, and 

 Wexford. U. Carb. Limest. ; Richmond, Yorkshire. Carb. 

 Limest. ; Ayrshire, Westmoreland, Derbyshire, and North 

 Wales. [Teeth ; Bristol Mus. and Brit. Mus.] T. 



? salopiensis, A. S. Woodward, Cat. Foss. Fishes B. M., pt. i, 

 1889, pp. 105, 187. 

 'A palate, or part of a palate,' J. Morris and G. E. Roberts, 



Quart. Journ. Geol. Soc, vol. xviii, 1862, p. 105, pi. iii, f. 5. 

 LOC. Carb. Limest. ; Farlow, Shropshire. [Teeth ; Brit. Mus.] 

 SUhteres, Agassiz. v. Orodus ramosus. 



trapeziformis (Davis), A. S. Woodward, Cat. Foss. Fishes 



B. M., pt. i, 1889, p. 105. 



Homalodus trapeziformis, J. W. Davis, Trans. Roy. Dublin 



Soc [2] vol. i (1883), p. 482, pi. lviii, f. 30. T. {Homalodus) 



Homalodus quadratus, J. W. Davis, ibid., p. 482, pi. lviii, f. 31. 



[Tooth ; 'Brit. Mus.] 

 LOC. L. Carb. Limest. ; Armagh. [Tooth ; Brit. Mus.] 

 turgiduSj Agassiz. v. Helodus turgidus. 



FSAXrcXK05TZU£, L. Agassiz, Poiss. Foss. V. G. R. (1845), 

 p. 103. 

 granulatus, F. M'Coy, Ann. Mag. Nat. Hist. [2] vol. ii, 1848, 

 p. 7 ; J. Morris, Cat. Brit. Foss., 1854, p. 341. 

 LOC. L. Carb. ; Kesh, Co. Fermanagh. [Dermal plate ; olim 

 R. Griffith Coll.] 



vermicularis, F. M'Coy, Ann. Mag. Nat. Hist. [2] vol. ii, 1848, 

 p. 7 ; J. Morris, Cat. Brit. Foss., 1854, p. 341. 

 LOC. Carb. ; Fallaghloon, Maghera. [Dermal plate ; olim 

 R. Griffith Coll.] 



