88 BRITISH FOSSIL VERTEBRATA. 



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

 p. 106 (name only). 



omatus, L. Agassiz, ibid., p. 163 (name only). 



LOC. Coal-Meas.; Carluke. [Ornamented plate.] T. 



GYBACANTKUS, L. Agassiz, Poiss. Foss., vol. iii (1837), p. 17; 

 R. H. Traquair, Ann. Mag. Nat. Hist. [5] vol. xiii (1884), 

 p. 38, and Proc. Roy. Phys. Soc. Edinb., vol. viii (1884), 

 p. 91 ; J. Thomson, Trans. Geol. Soc. Glasgow, vol. iii, 

 pt. i (1868), p. 130. 

 MlTRODUS, R. Owen, Trans. Odontol. Soc, vol. v, 1867, p. 338. 



Cllnwicensis, L. Agassiz, Poiss. Foss., vol. iii (1837), p. 19, pi. ia, 



f. 8 (undefined) ; J. Morris, Cat. Brit. Foss., 1854, p. 327. 

 LOC. Carb. Limest.; Alnwick, Northumberland. [Fragment of 

 spine.] 



denticulatus, J. W. Davis, Ann. Mag. Nat. Hist. [5] vol. vi, 

 1880, p. 372, woodcuts. 

 LOC. M. Coal-Meas.; Tinglev, Yorkshire. [Extremity of spine; 

 J. W. Davis Coll.] 



formosus, L. Agassiz, Poiss. Foss., vol. iii (1837), p. 17, pi. v, 

 f. 2-6 ; E. W. Binney, Trans. Manchester Geol. Soc, vol. i. 

 (1841), p. 168 ; J. Morris, Cat. Brit. Foss., 1854, p. 327 ; J, 

 Ward, [Proc] N. Staffs. Nat. Field Club, 1875, p. 216, f. 3, 

 and Trans. N. Staffs. Inst. Mining Engin., vol. x (1889), 

 pi. iii, f. 1 ; R. H. Traquair, Ann. Mag. Nat. Hist. [5] vol. xiii, 

 1884, p. 46. 



' Fish spine ?,' J. De C. Sowerby, Zool. Journ., vol. i, 1825, p. 252, 

 pi. viii, f. 9, and ibid., vol. ii, 1826, p. 22. 



Gyracanthus tuberculatum, L. Agassiz, Poiss. Foss., vol. iii 

 (1837), p. 19, pi. i a, f. 1-7 ; J. Morris, Cat. Brit. Foss., 

 1854, p. 327 ; A. Hancock and T. Atthey, Nat. Hist. Trans. 

 Northumb. and Durham, vol. iii (1870), p. 108, and ibid., 

 vol. iv (1872), p. 421 ; A. Hancock and T. Atthey, Ann. 

 Mag. Nat. Hist. [4] vol. i, 1868, p. 368, and ibid. [4] vol. ix, 

 1872, p. 260; J. Ward, [Proc] N. Staffs. Nat. Field Club, 

 1875, p. 217 ; J. W. Davis, Quart. Journ. Geol. Soc, vol. 

 xxxii, 1876, p. 334. [Spine.] 



Gyracanthus, T. P. Barkas, Coal Meas. Palaeont., 1873, p. 15, 

 f. 1-5. 



[The spine from the Calcif. Sandst. of Burdiehouse, figured by 

 S. Hibbert, Trans. Roy. Soc. Edinb., vol. xiii (1835), pi. xi, 

 f. 1, and assigned to Gyracanthus formosus by Agassiz, is 

 of doubtful species.] 



LOC. Coal-Meas.; Staffordshire, Lancashire, Yorkshire, North- 

 umberland, and South Scottish Coalfield. [Spine.] T. 



nobllis, R. H. Traquair, Geol. Mag. [2] vol. x, 1883, p. 542, and 

 Ann. Mag. Nat. Hist. [5] vol. xiii, 1884, p. 44, and Proc. Roy. 

 Phys. Soc. Edinb., vol. viii, 1884, p. 100. 



