PISCES. 89 



GY&ACANTKUS nobilis (continued)— 



Gyracanthus tubercu/atus, R. H. Traquair (non Agassiz), Geol. 



Mag. [2] vol. viii, 188 1, p. 35, and ? T. Stock, Trans. Edinb. 



Nat. Field Club, vol. i (1883), p. 50. 

 Gyracanthus formosus, R. H. Traquair (non Agassiz), Geol. 



Mag. [2] vol. ix, 1882, p. 542. 

 LOC. M. Carb. Limest. ; Edinburgh and Fifeshire. [Spine ; 



R. H. Traquair Coll.] 



obliquus. F. M'Coy, Ann. Mag. Nat. Hist. [2] vol. ii, 1848, p. 117, 

 and Brit. Palaeoz. Foss. (1855), p. 629, pi. iii K, f. 13, 14 ; J. 

 Morris, Cat. Brit. Foss., 1854, p. 327. 

 LOC. L. Carb. ; Moyheeland. [Spine ; Woodwardian Mus.] 



ornatus, L. Agassiz, Poiss. Foss., vol. iii (1843), p. 177 (name 

 only). 

 LOC. Coal-Meas. ; Wales. [Spine.] 

 tuberculatiis, Agassiz. v. Gyracanthus formosus. 



young"!, [-ii] R. H. Traquair, Geol. Mag. [2] vol. x, 1883, p. 543, and 

 Ann. Mag. Nat. Hist. [5] vol. xiii, 1884, p. 47, and Proc. 

 Roy. Phys. Soc. Edinb., vol. viii, 1884, p. 103. 

 LOC. M. Carb. Limest. ; Scottish Coalfield. [Spine ; R. H. 

 Traquair Coll.] 



sp., R. Howse, Trans. Tyneside Nat. Field Club, vol. i, 1848, 

 p. 237 ; assigned to G. formosus by W. King, Permian Foss. 

 (Pal. Soc, 1850), p. 221. 

 LOC. L. Permian; Westoe. [Spine; Newcastle-upon-Tyne Mus.] 

 dermal tubercles of), v. Mitrodus quadricornis. 



GYRODUS, L. Agassiz, Poiss. Foss., vol. ii, pt. ii (1843), P- 22 3 '» 

 R. Owen, Rep. Brit. Assoc, 1838 (1839), Sect., p. 143 ; 

 J. J. Heckel, Denkschr, k. k. Akad. Wiss. Wien, math.- 

 naturw. CI., vol. xi, 1856, p. 200. 

 Sph/erodus, L. Agassiz, Poiss. Foss., vol. ii, pt. i (1833), p. 15, 

 and ibid., pt. ii (1843), p. 209 (pars). 



anyustus, Agassiz. v. Ccelodus angustus. 



coccoderma, P. M. G. Egerton, Quart. Journ. Geol. Soc, vol. xxv, 

 1869, p. 383, woodcuts 3, 4. 

 LOC. Kim. Clay ; Kimeridge. [Vomer ; Mus. Pract. Geol.] 



conicus, Dixon, v. Gyrodus cretaceus. 



cretaceus, L. Agassiz, Poiss. Foss., vol. ii, pt. ii (1843), P- 2 33» 



pi. lxix a, f. 13 ; F. Dixon, Geol. Sussex, 1850, p. 370, pi. 



xxx, f. 15 ; J. Morris, Cat. Brit. Foss., 1854, p. 328; A. S. 



Woodward, Proc. Geol. Assoc, vol. x (1888), p. 308. 



Gyrodus mammMaris, L. Agassiz, Poiss. Foss., vol. ii, pt. ii 



(1843), p. 236, pi. lxxiii a, f. 1, 2. 

 Pycnodus marginalis, L. Agassiz, ibid., pt. ii (1843), p. 199. 

 [Tooth ; olim Manchester Mus.] 



