PISCES. 159 



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



[Skull and portion of trunk.] 

 Coccosteus decipiens, Agassiz. C. microspondylus, F. McCoy, 



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



(1854), p. 30, and Brit. Palseoz. 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, n (1848), p. 298, 



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



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



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

 C.? trigonaspis, F. McCoy, A. M. N. H. ser. 2, n (1848), 



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



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



locality unknoivn. [Imperfect skeleton.] 

 C. microspondylus, v. Coccosteus decipiens. 

 C. pusillus, v. Coccosteus decipiens. 

 C.? trigonaspis, v. Coccosteus decipiens. 

 Cochliodus acutus, v. Deltoptychius acutus. 

 C. compactus, v. Deltoptychius acutus. 

 Cochliodus contortus, Agassiz, F. McCoy, Brit. Palaeoz. Foss. 



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



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



f. 6, p. 421. Tomodus canvexus, R. Owen (errore), G. M. iv 



(1867), pi. iv, f. 2 5, p. 62. Carboniferous Limestone; Armagh. 



[Jaw.] 



G. magnus, v. Psephodus magnus. 

 C. oblongus, v. Streblodus oblongus. 

 C. striatus, v. Xystrodus striatus. 

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



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



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



Craig, Elgin. [Tooth.] 

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



pi. iii I, f. 31, 31 a, b, p. 624. C. crenulatus, Agassiz, J. W. 



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



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

 C. crenulatus, v. Ctenacanthus crenatus. 



