4 BRITISH FOSSIL VERTEBRATA. 



ACESTRUS, L. Agassiz, Rep. Brit. Assoc, 1844(1845)^. 308 (name 

 only). 



ornatus, L. Agassiz, ibid., p. 308 (name only). 



LOG London Clay ; Sheppey. [Cranium ; Brit. Mus.] T. 



ACIPEKSSR, Linnaeus, Syst. Nat., ed. 12, vol. i, 1766, p. 403. 



toliapicus, L. Agassiz, Poiss. Foss., vol. ii, pt. ii (1843), p. 280 

 (name only) ; J. Morris, Cat. Brit. Foss., 1854, p. 316 ; 

 A. S. Woodward, Proc. Geol. Assoc, vol. xi (1889), p. 28, 

 pi. i, f. 1. 

 LOC. London Clay ; Sheppey. [Scutes ; Brit. Mus.] 



sp., E. T. Newton, Vert. Forest Bed (Mem. Geol. Surv., 1882), 

 p. 129, pi. xix, f. 6. 

 LOC Forest-Bed Series ; Norfolk. [Cephalic plate ; Mus. 

 Pract. Geol.] 



sp., A. S. Woodward, Proc. Geol. Assoc, vol. xi (1889), p. 28, pi. i, f. 3. 

 LOC. Red Crag ; Suffolk. [Pectoral spines ; York Mus.] 



sp., A. S. Woodward, Proc. Geol. Assoc, vol. xi (1889), p. 28, pl.i,f. 2, 

 LOC. Hempstead Beds ; Isle of Wight. [Scute ; Brit. Mus., 

 no. P. 5283.] 



sp., A. S.Woodward, Proc. Geol. Assoc, vol. xi(i889),p.28, pl.i, f. 3^. 

 LOC. U. Eocene (Oligocene) ; Hampshire Basin. [Pectoral 

 spine ; Brit. Mus., no. P. 1533a.] 



AC ONDYX. ACANTHUS, O. St. John and A. H. Worthen, Pal. 

 Illinois, vol. vi, 1875, p. 432. 



attenuatus, J. W. Davis, Trans. Roy. Dublin Soc [2] vol. i 

 (1883;, p. 352, pi. xlvi, f. 3. 

 LOC. L. Carb. Limest. ; Armagh. [Spine ; Woodwardian Mus.] 



colei, J. W. Davis, Trans. Roy. Dublin Soc. [2] vol. 1 (1883), p. 

 347, pi. xlv, f. 7, pi. xlvi, f. 1. 

 LOC. L. Carb. Limest. ; Armagh. [Spine ; Brit. Mus.] 



distanB (M'Coy), J. W. Davis, Trans. Roy. Dublin Soc. [2] vol. i 



(1883), p. 349. pl- xlvi, f. 5. 

 Ctenacanthus distans, F. M'Coy, Ann. Mag. Nat. Hist. [2] 



vol. ii, 1848, p. 116, and Brit. Palaeoz. Foss. (1855), p. 625, 



pl. iii K, f. 15 ; J. Morris, Cat. Brit. Foss., 1854, p. 323. 

 LOC. L. Carb. Limest. ; Armagh. Carb. Limest. ; Denbighshire. 



[Spine ; Woodwardian Mus.] 



Jenkinsoni (M'Coy), O. St. John and A. H. Worthen, Pal. Illinois, 

 vol. vi, 1875, p. 433 ; J. W. Davis, Trans. Roy. Dublin Soc. 

 [2] vol. i (1883), p. 351, pl. xlvi, f. 2. 



Lepiacatithus jenkinsoni, F. M'Coy, Brit. Palaeoz. Foss. (1855), 

 p. 633, pl. iii G, f. 14-16. 



LOC. Carb. Limest. ; Lowick, Northumberland. [Spine ; Wood- 

 wardian Mus.) 



