PISCES. 159 



Survey, 1866), pis. ix, x, p. 39. Kimeridfje Clay: Cottenham. 



[Skull and portion of trunk.] 

 Coccosteus deciplens, Agassiz. C. microspondylus, ¥. McCoy, 



A. M. N. H. ser. 2, ii (1848), p. 298, and Contrib. Brit. Pal. 



(18.54), p. 30, and Brit. Palsoz. Foss. (1855), pi. ii c, f. 4, 



p. 602. Old Red Sandstone ; Orkney. [Imperfect skeleton.] 

 C. pusillus, F. McCoy, A. M. N. H. ser. 2, ii (1848), p. 298, 



and Contrib. Brit. Pal. (1854), p. 30, and Brit. Palaeoz. Foss. 



(1855), pi. ii c, f. 5, 5 a, p. 603. Old Red Sandstone; Orkney. 



[Imperfect skeleton.] Presented by the Rev. J. H. PoUexfen. 

 C? trigmaspis, F. McCoy, A. M. N. H. ser. 2, ii (1848), 



p. 299, and Contrib. Brit. Pal. (1854), p. 31, and Brit. Palaeoz. 



Foss. (1855), pi. ii c, f. 6, 6 a, p. 603. Old Red Sandstone; 



locality unknown. [Imperfect skeleton.] 

 G. microspondylus, v. Coccosteus decipiens. 

 C. pusillus, v. Coccosteus decipiens. 

 C? trigonaspis, v. Coccosteus decipiens. 

 Cochliodus acutoB, v. Deltoptychius acutus. 

 G. compactns, v. Deltoptychius acutus. 

 Cochliodus contortus, Agassiz, F. McCoy, Bri^t. Palseoz. Foss. 



(1855), p. 622. R. Owen, G. M. iv (1867)_pl. iii, f 1, 2. 



J. W. Davis, Trans. Roy. Dublin Soc. ser. 2, I (1883), pi. Iii, 



f. 6, p. 421. Tomodus convexus, R. Owen (errore), G. M. IV 



(1867), pl. iv, f. 2 — 5, p. 62. Garhoniferous Limestone; Armagh. 



[Jaw.] 

 G. magntis, v. Psephodus magnus. 

 G. oblongus, v. Streblodus oblongus. 

 G. striatus, v. Xystrodus striatus. 



Conchodus ostreaeformis, F. McCoy, A. M. N. H. ser. 2, ii (1848), 

 p. 312, and Contrib. Brit. Pal. (1854), p. 44, and Brit. Pateoz. 

 Foss. (1855), pi. ii c, f. 7, p. 593. Old Red Sandstone; Scat 

 Craig, Elgin. [Tooth.] 



Ctenacanthus crenatus, F. McCoy, Brit. Palaeoz. Foss. (1855), 

 pl. iii I, f. 31, 31 a, b, p. 624. G. crenidatus, Agassiz, J. W. 

 Davis, Trans. Roy. Dublin Soc. ser. 2, I (1883), pl. xlv, f. 6, 

 6 a, p. 345. Carboniferous Limestone ; Armagh. [Spine.] 



C. crenulatvs, v. Ctenacanthus crenatus. 



