PERCIDiE. 
503 
with opercular apparatus about equal to the maximum depth of the 
trunk, which slightly exceeds one third the total length to the base 
of the caudal fin. Anterior dorsal fin with 7 spines, posterior dorsal 
with 1 spine and 12 articulated rays, the third spine being stoutest 
and longest, its length somewhat exceeding half the depth of the 
trunk at its insertion; anal fin with 3 spines and 8 articulated 
rays, the spines being relatively short, the second stouter than the 
third but of equal length. 
Form. Log. Upper Eocene : Monte Bolca, N. Italy. 
P. 3918. Well-preserved fish labelled by Agassiz, displaying all the 
fins except the pectorals. Enniskillen Coll. 
P. 2095, P. 3918 a. More imperfect larger specimen, in counter¬ 
part, showing serrated suborhital plate. 
Egerton EnniskiUen Colls. 
19007. Imperfect distorted large specimen. Purchased, 1845. 
P. 1913. Imperfect fish displaying fins, preopercular spines, and 
seven branchiostegal rays. Egerton Coll. 
P. 9461. Smaller specimen, in counterpart. 
Presented hy the Earl of Aylesford, 1847. 
P. 1913 a, P. 3918 h. Imperfect fish deepened by distortion, 
labelled “ Lates gracilis, Ag.” by Agassiz. 
Egerton Enniskillen Colls. 
37225. More imperfect small specimen, similarly distorted. 
Purchased, 1863. 
P. 1913 b, P. 3918 C. Fragmentary remains of fish about 0*12 in 
length, in counterpart. Egerton ^ Enniskillen Colls. 
The following extinct species, not represented in the Collection, 
have also been referred to this genus :— 
Lates macropterus, F. Bassani, Atti E. Accad. Sci. Napoli [2] vol. 
L id P* P^- —Lower Miocene; 
Chiavon, Yicentin. [Imperfect trunk; Zigno Collection, 
y'.ii University Geological Museum, Padua.] 
Lates macirurus, L. Agassiz, Poiss. Foss. vol. iv. (1833-34), p. 29, 
—Middle Eocene (Calcaire Grossier) ; Sevres, Paris, 
fish; Paris Museum of Natural History.] 
Lates partschi, I. J. Heckel, Denkschr. k. Akad. Wiss., math.- 
L naturw. Cl. vol. xi. (1856), pt. i. p. 265, pi. xv. fig. 1.— 
ftvs Miocene; Breitenbrunn, Vienna. [Fragmentary 
sjiAziCj if.ji fish; Court Museum, Vienna.] 
