﻿CIELACA.NT1L1D-K. 



403 



Ccelacanthus elegans, Newberry. 

 [Plate XIV. fig. 2.] 



1844. Ccelacanthus lepturus, L. Agassiz, Poiss. Foss. vol. ii. pt. ii. 



p. 173 (undefined). 

 1844. Hoplopygus binneyi, L. Agassiz, ibid. p. 178 (undefined). [E. W. 



Binney Collection.] 

 1856. Ccelacanthus elegans, J. S. Newberry, Proc. Acad. Nat. Sci. 



Philad. vol. viii. p. 98. 

 1866. Codacanthus lepturus, T. II. Huxley, Figs. & Descrips. Brit. 



Organic Remains (Mem. Geol. Surv.), dec. xii. p. 16, pi. ii. figs. 



1-4, pi. iii. figs. 1-3, pi. iv. figs. 1-6. [Museum of Practical 



Geology.] 

 1866. Codacanthus elegans, T. II. Huxley, ibid. p. 20, pi. v. tigs. 1-4. 



1872. Codacanthus lepturus, A. Hancock & T. Atthey, Ann. Mag. Nat. 

 Hist. [4] vol. ix. p. 256, pi. xvii. fig. 4 ; also Nat. Hist. Trans. 

 North urn b. & Durham, vol. iv. p. 416, pi. xv. fig. 4. 



1873. Conchiopsis jiliferus and C. anguliferus, E. D. Cope, Proc. Acad. 

 Nat. Sci. Philad. p. 342. [Imperfect fishes ; Columbia College, 

 New York.] 



1873. Coslacanthus elegans, J. S. Newberry, Proc. Acad. Nat. Sci. Philad. 

 p. 425, and Rep. Geol. Surv. Ohio, vol. i. pt, ii. p. 339, pi. xl. fig. 1. 



1875. Codacanthus lepturus, J. \Yard, [Proc] N. Staffs. Nat. Field Club, 

 p. 242. 



1876. Coslacanthus lepturus, J. "W. Davis, Quart. Journ. Geol. Soc. vol. 

 xxxii. p. 339. 



1888. Bhabdcderma lepturus and R. elegans, 0. M. Reis, Paheontogr. 

 vol. xxxv. p. 5. 



1889. Ccelacanthus elegans, J. S. Newberry, Palaeoz. Fishes N. America 

 (Mon. U. S. Geol. Surv. no. xvi.), p. 213. 



1890. Ccelacanthus lepturus, J. Ward, Trans. N. Staffs. Inst. Mining 

 Engin. vol. x. p. 168, pi. v. figs. 1, 3. 



1890. Ccelacanthus lepturus, R. H. Traquair, Proc. Roy. Soc. Edinb. 

 vol. xvii. p. 390. 



Type. Imperfect fishes ; Columbia College, New York. 



A species usually attaining only a small size, but sometimes 

 probably having a total length of not less than 0*45. Body slender 

 and elongated ; head with opercular apparatus occupying about one- 

 fifth of the total length. Dorsal fins of relatively large size, the 

 first consisting of very stout rays and situated slightly in advance 

 of the pelvic pair, the second consisting of more numerous slender 

 rays ; principal caudal fin comprising 12-14 stout rays above and 

 below. Jugular plates tapering in front, three to three and a half 

 times as long as broad, ornamented with fine vermiculating striae, 

 in part concentric ; operculum about one and a half times as deep 

 as broad, irregularly marked with short, fine, vermiculating striae, 



2d2 



