88 BRITISH FOSSIL VERTEBRATA. 
GRAPTOLEPIS, L. Agassiz, Poiss. Foss., vol. ii, pt. ii (1843), 
p. 106 (name only). 
ornatus, L. Agassiz, 7bzd., p. 163 (name only). 
Loc. Coal-Meas.; Carluke. [Ornamented plate.] =. 
GYRACANTHUWS, L. Agassiz, Poiss. Foss., vol. iii (1837), p. 175 
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. Soe Glasgow, vol. iil, 
pt. 1 (1868), p. 130. 
Mirropus, R. Owen, Trans. Odontol. Soc., vol. v, 1867, p. 338. 
alnwicensis, L. Agassiz, Poiss. Foss., vol. iii (1837), p. 19, pl. 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.; Tingley, Yorkshire. [Extremity of spine; 
J. W. Davis Coll.] 
formosus, L. Agassiz, Poiss. Foss., vol. iti (1837), p. 17, pl. v, 
f. 2-6; E. W. Binney, Trans. Manchester Geol. Soc., vol. i. 
(1841), e163 eS Morris, Cat. Brit. Foss., 1854, Pp. 3273 J, 
Ww ard, [Proc.] N. Staffs. Nat. Field Club, 1875, p. 216, f. 3, 
and Trans. N. Staffs. Inst. Mining Engin., vol. x (1889), 
pl. 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, 
pl. viii, f. 9, and zé¢d., vol. ii, 1826, p. 22. 
Gyracanthys tuberculatus, L. Agassiz, Poiss. Foss., vol. iil 
(1837), p. 19, pl. ia, f. 1-7; J. Morris, Cat. Bnt. Foss., 
1854, p. 327; A. Hancock and T. Atthey, Nat. Hist. Trans. 
Northumb. and Durham, vol. iii (1870), p. 108, and zdzd., 
vol. iv (1872), p. 421; A. Hancock and T. Atthey, Ann. 
Mag. Nat. Hist. [4] vol. i, 1868, p. 368, and zézd. [4] vol. ix, 
1872, p. 260; J. Ward, [Proc.] N. Staffs. Nat. Field Club, 
1875. p. 317 ; J. W. Davis, Quart. Journ. Geol. Soc., vol. 
xxxll, 1876, p. 334. [Spine.] 
Gyracanthus, T. P. Barkas, Coal Meas. Palzont., 1873, p. 15, 
f. 1- -5: 
[The spine from the Calcif. Sandst. of Burdiehouse, figured by 
S. Hibbert, Trans. Roy. Soc. Edinb., vol. xii (1835), pl. x1, 
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.] Tt. 
nobilis, 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. 
