PISCES. 47 
CORAX (continued)— 
planus, Agassiz. v. Corax affinis. 
pristodontus, L. Agassiz, Poiss. Foss., vol. iii (1843), p. 224, 
pl. xxvi, f. 9-13 (lettered Galews pristodontus) ; A. S. Wood- 
ward, Proc. Geol. Assoc., vol. x (1888), p. 293, and Cat. Foss, 
Fishes B. M., pt. 1, 1889, p. 423. 
? Corax appendiculatus, L. Agassiz (pars), Poiss. Foss., vol. iii 
(1843), p. 227, pl. xxvi a, f. 16-20. 
Loc. U. Chalk; Norfolk. [Zeeth,; Brit, Mus.] T. 
COSMACANTHUS, L. Agassiz, Poiss. Foss. V. G. R. (1844), 
Pp. 120. 
GEISACANTHUS, O. St. John and A. H. Worthen, Pal. Illinois, 
vol. vi, 1875, p. 440.* 
carbonarius, F. M‘Coy, Ann. Mag. Nat. Hist. [2] vol. ii, 1848, 
p. 119; J. Morris, Cat. Brit. Foss., 1854, p. 323; J. W. Davis, 
Trans. Roy. Dublin Soc. [2] vol. i (1883), p. 357. 
Loc. L. Carb. Limest.; Armagh. ([Spines; o/7# Capt. Jones 
Coll. ] 
carinatus, J. W. Davis, Trans. Roy. Dublin Soc. [2] vol. i (1883), 
p- 356, pl. xlviii, f. 4. 
Loc. L. Carb. Limest.; Armagh. [Spine; Brit. Mus.] 
malcolmsoni, L. Agassiz, Poiss. Foss. V. G. R. (1844), pp. 111, 
121, pl. xxxiti, f. 28; J. Morris, Cat. Brit. Foss., 1854, p. 323. 
[Fragment of Placoderm armour according to C. H. Pander, 
Placoderm. devon. Syst., 1857, p. 18.] 
Loc. U. Old Red Sandst.; Scat Craig, Elgin. [? Spine or frag- 
ment of dermal plate ; 0/¢7z Malcolmson Coll.] T. 
marginalis, J. W. Davis, Trans. Roy. Dublin Soc. [2] vol. i 
(1883), p. 355, pl. xlviii, f. 3. 
Loc. L. Carb. Limest.; Armagh. [Spine ; Brit. Mus.] 
priscus (M‘Coy), J. W. Davis, Trans. Roy. Dublin Soc. [2] vol. i 
(1883), p. 358, pl. xviii, f. 1, 2. 
Leptacanthus priscus, L. Agassiz, Poiss. Foss., vol. iii (1843), 
p. 176 (name only) ; J. Morris, Cat. Brit. Foss., 1854, p. 332. 
Nemacanthus priscus, F. M‘Coy, Ann. Mag. Nat. Hist. [2] 
vol. ii, 1848, p. 120; J. Morris, Cat. Brit. Foss., 1854, p. 334. 
Loc. L. Carb. Limest. ; Armagh. [Spine ; Geol. Soc. London.] 
COSMOLEPIS, P. M. G. Egerton, Figs. and Descript. Brit. 
Organic Remains, dec. ix (Mem. Geol. Surv., 1858), no. I. 
egertoni, P. M. G. Egerton (ex Agassiz, MS.), zd¢d., no. 1, pl. i. 
Loc. L. Lias ; Barrow-on-Soar, Leicestershire. [Fish ; Brit. 
Mus. ] T. 
* If, as supposed by Pander, the type of Cosmacanthus malcolmsoni bea fragment 
of Placoderm armour, this name must be adopted for the Carboniferous spines. 
