504 
ACTINOPTEEYGII. 
Genus CYCLOPOMA, Agassiz. 
[Poiss. Foss. vol. iv. 1833, p. 17.] 
Scarcely distinguishable from Latex, but preoperculum without 
spine at angle, its serrations gradually increasing in size downwaids 
and the lowest and largest directed forwards. 
The species of this supposed extinct genus are referred to Latee 
by P. Bleeker, Archiv. Necrland. vol. xi. (1876), p. 263. 
Cyclop oma gigas, Agassiz. 
1796. Labrus turdus, G. S. Volta, Ittiolit. Veronese, p. ccii. pi. x ^ x ' 
( errore ). 
1796. Scorpcena, G. S. Volta, ibid. pi. lxxiv. 
1833. Cyclopoma yiyas, L. Agassiz, Poiss. Foss. vol. iv. p. 18, pi* 11 • 
Type. Imperfect fish ; Paris Museum of Natural History. 
The type species, attaining a length of about 0'5. Length o 
head with opercular apparatus about equal to maximum depth 0 
trunk and contained four times in total length of fish. Posterior 
dorsal fin with 1 spine and 10 articulated rays, anal fin with • 
spines and 8 articulated rays. 
Form. <$• Loc. Upper Eocene : Monte Bolca, N. Italy. 
P. 9462. Very large specimen, in fragments, in counterpart. 
History unknown. 
P. 2093, P. 4278. More fragmentary specimen, 0‘40 in length, in 
counterpart. Eyerton Enniskillen Colls- 
A stouter fish, with larger head, not represented in the Collection, 
has also been described as follows : — 
Cyclopoma spinosum, L. Agassiz, Poiss. Foss. vol. iv. (1833), 
p. 20, pi. i. Scorpcena scrofa, G. S. Volta, Ittiolit. 
Veronese (1796), p. cxlv. pi. xxxiv. (errore). — Upp° r 
Eocene; Monte Bolca. [Imperfect fish; Paris Museum 
of Natural History.] 
Cyclopoma (?) micracanthum (Agassiz). 
1796. Holocentrus maculatus, G. S. Volta, Ittiolit. Veronese, p. ccxxxiv. 
pi. lvi. fig. 3 (errore). 
1796. Amia indica. G. S. Volta, ibid. p. cxlix. pi. xxxv.fig. 4 (errors)- 
1818. Amia indica, II. D. de Blainville, Nouv. Diet, d’llist. Nat. ' 0 • 
xxvii. p. 347. 
r qO 
1835. Smerdis micracanthus, L. Agassiz, Poiss. Foss. vol. iv. p- ,J > 
pi. viii. figs. 1, 2. 
