560 
actinopteeygii. 
1876. Ephippus longipennis, F. Bassani, Atti Soc. Veneto-Trent. Sci. 
Nat. vol. iii. p. 179. 
1886. Ephippus longipennis, W. Szajnocha, Pamiet. Wydz. matem.- 
przyr. Akad. Umiejet. Krakow, vol. xii. p. 108, pis. ii., iii. 
Typ e . Imperfect fish ; Paris Museum of Natural History. 
A species attaining a length of about 0 - 25. Maximum depth of 
trunk about equal to length from pectoral arch to base of caudal 
fin. Anterior dorsal fin with 8 spines, the fifth to seventh longest, 
all more slender at apex than in recent species; posterior dorsal 
with 1 spine and 18 to 20 articulated rays ; anal fin with 16 arti- 
culated rays in addition to the 3 spines. 
Form. <$f Loc. Upper Eocene : Monte Bolca, near Verona. 
P. 2092, P. 3925. Fine specimen, in counterpart, showing ova in 
abdominal cavity as noticed by Agassiz, Poiss. Foss. vol. v. 
pt. ii. p. 76. Eger ton 6f Enniskillen Colls. 
P. 9475. Smaller, more imperfect specimen, in counterpart. 
History unknown . 
The following extinct species have also been described but are 
not represented in the Collection : — 
Ephippus nicolisi, F. Bassani, Boll. Soc. Geol. Ital. vol. 
(1888), p. 279, with plate. — Middle Eocene; Val Sor- 
dina, near Lonigo, Verona. [Imperfect fish ; Nicolis Coll., 
Verona.] 
Ephippus oblongus, L. Agassiz, Neues Jahrb. 1835, p. 292, and 
Poiss. Foss. vol. iv. (1839-44), pp. 15, 228, pi. xxxix. 
fig. 3. Chaztodon asper, G. S. Volta, Ittiolit. Veronese 
(1796), p. xc. pi. xx. fig. 1. Chcrtodon suhstrialus, H. fi- 
de Blainville, Nouv. Diet. d’Hist. Nat. vol. xxvii. (1818), 
p. 352. — Upper Eocene ; Monte Bolca. [Imperfect fish ; 
Paris Museum of Natural History.] 
Extinct species, not represented in the Collection, have also been 
referred to existing genera of Chaetodontida; as follows : — 
Chatodon hoeferi, D. G.Kramberger, Tijela Jugoslav. Akad. vol. xvi. 
(1895), p. 60, and Soc. Hist. Nat. Croatica, vol. x - 
(1898), p. 30, pi. ii. fig. 2, pi. iii. — Upper Oligocene; 
Tiiffer, Steiermark. [Imperfect fish ; Academy of Mines, 
Leoben.] 
Chaztodon pseudorhombus, P. Gorvais, Zool. et Pal. Frang. (1852), 
Poiss. Foss. p. 9, pi. lxxiii. fig. 2 ( Chaztodon rhombus on 
plate). — Pliocene; Montpellier. [Generically indetermin- 
able imperfect trunk.] 
