364 MEMOIRS OF THE CARNEGIE MUSEUM 
12. Myripristis leptacantha* Agassiz. 
1796. Perca formosa, G. 8. Volta, Ittiolit. Veronese, p. LX XX, pl. XVII, fig. 2 
(errore). 
1818. ‘“Perca formosa,’ H. D. de Blainville, Nouv. Dict. d’Hist. Nat., Vol. 
XXVII, p. 347. 
1838-39. Myripristis leptacanthus, L. Agassiz, Poiss. Foss., Vol. IV, pp. 5, 111, 
pl. XV, fig. 4. 
1876. Myripristis leptacanthus, F. Bassani, Atti Soc. Veneto-Trent. Sci. Nat., 
Vola peal AG: 
1901. Myripristis leptacanthus, A. 8. Woodward, Brit. Mus. Cat. Foss. Fishes, 
Pt. IV, p. 410. 
Type.—Imperfect fish; Paleontological Museum, Munich. 
This species is represented in the collection of the Carnegie Museum by a 
number of well preserved examples, cataloged as follows: 4209, 4216, 4838, 4435, 
4446, 4495, 4496, 4497. 
Genus HoLtocentrrum (Artedi) Cuvier. 
13. Holocentrum macrocephalum Blainville. (Pl. XCII, fig. 1.) 
1796. Holocentrus sogo, G. S. Volta, Ittiolit. Veronese, p. 210, pl. LI, fig. 2 (errore). 
1796. Chetodon saxatilis, G. 8. Volta, ibid., p. 265, pl. LXIV, fig. 1 (errore). 
1796. Chetodon, G. 8. Volta, ibid., pl. LXXII, fig. 1 (errore). 
1818. Holocentrus macrocephalus, H. D. de Blainville, Nouv. Dict. d’Hist. Nat., 
Vol. XXVII, p. 349. 
1818. Chetodon saxatilis, H. D. de Blainville, ibid., p. 353 (errore). 
1834-36. Holocentrum pygeum lL. Agassiz, Poiss. Foss., Vol. IV, pp. 6, 107, 
pl. XIV. 
1901. Holocentrum macrocephalum, A. 8. Woodward, Brit. Mus. Cat. Fossil 
Fishes, Part IV, p. 413. 
Type.—Imperfect fish; Paris Museum of Natural History. 
Several fine large specimens, as perfect as any hitherto reported, besides a 
number of smaller ones, form part of the Bayet Collection in the Carnegie Museum. 
A typical example is represented in Plate XCII, fig. 1. The series is cata- 
loged under the following numbers: 4368, 4870, 43872, 4437, 4444, 4445, 4455, 4494, 
4495, 4502. The original of Plate XCII, fig. 1, is cataloged as No. 4455. 
Division B. SCOMBRIFORMES. 
As remarked by Boulenger, the series of families that cluster round the mackerel 
offer so many modifications of structure that it is impossible to draw up a diagnosis 
*The noun Myripristis being feminine, the specific name should agree with it. Editor. 
