160 PISCES. 



Ctenacanthus denticulatus, F. McCoy, A. M. N. H. ser. 2, ii 



(1848), p. 116, and Contrib. Brit. Pal. (1854), p. 11, and Brit. 



Palseoz. Foss. (1855), pi. iii K, f. 16, p. 625. J. W. Davis, Trans. 



Roy. Dublin Soc. ser. 2, i (1883), pi. xliv, f. 4, 4 a, p. 338. Loiue?- 



Carboniferous; Monaduff. [Spine.] 

 G. distans, v. Acondylacanthus distans. 



C. heterogyrus, Agassiz, F. McCoy, Brit. Palseoz. Foss. (1855), 

 pi. iii I, f. 32, (33 missing), p. 625. Carboniferous Limestone ; 

 Armagh. [Spine.] 



Ctenoptychius serratus (Owen), F. McCoy, Brit. Palseoz. Foss. 

 (1855), pi. iii I, f. 21 — 23, p. 626. Carboniferous Limestone; 

 f. 21, 2^ from Armagh, f 2S from Derbyshire. [Teeth.] 



Deltodus aliformis (McCoy), J. W. Davis, Trans. Roy. Dublin 

 Soc. ser. 2, i (1883), pi. liii, f. 12, p. 431. Poecilodus aliformis, 

 F. McCoy, A. M. N. H. ser. 2, ii (1848), p. 129, and Contrib. 

 Brit. Pal. (1854), p. 24, and Brit. Palaoz. Foss. (1855), pi. iii G, 

 f. 10 (upper figure), p. 638. Carboniferous Limestone ; Derby- 

 shire. [Tooth.] 



D. sublaevis (Agassiz). Poecilodus sublcevis, F. McCoy, Brit. Palaeoz. 



Foss. (1855) pi. iii i, f. 7 — 9, p. 640. Pwcilodus parallelus, F. 

 McCoy, ifttVf (1855), pi. iii i, f. 6, 6 a, p. 640. Carboniferous 

 Limestone; Armagh. [Teeth.] 



Deltoptychius acutus (Agassiz). Gochliodus acutiis, F. McCoy, 



Brit. Pala3oz. Foss. (1855), pi. iii i, f. 24, 24 a, p. 621 (missing). 



Cochliodus compactus, R. Owen, G. M. iv (1867), pi. iv, f. 1. 



Carboniferous Limestone ; Armagh. [Teeth.] 

 Dicrenodus dentatus (McCoy). Pristicladodus dentatus, F. 



McCoy, Brit. Palaoz. Foss. (1855), pi. iii G, f. 2, 3, p. 642. 



Carboniferous Limestone ; Derbyshire. [Tooth.] 



D. goughi (McCoy). P^-isticladodiis goughi, F. McCoy, Brit. 

 Palajoz. Foss. (1855), pi. iii K, f. 11, p. 643. J. W. Davis, 

 Trans. Roy. Dublin Soc. ser. 2, i (1883), pi. xlix, f. 27, p. 385. 

 Carboniferous Limestone ; Kettlewell, Kendal. [Tooth.] 



Diplacanthus gibbiis, v. D. striatus. 



Diplacanthus longispinus, Agassiz. D. perarmatus, F. McCoy, 

 A. M. N. H. ser. 2, ii (1848), p. 301, and Contrib. Brit. Pal. 



