ACTINOPTEKrGII. 
r, 1 o 
Form. 4' Loc. Lower Oligocene : Aix-en-Provence. 
P. 1916. Small imperfect fish, labelled by Agassiz as belonging to 
this species. Egerton Coll- 
Properca (?) prisca (Agassiz). 
1844. Zeus pritcus, L. Agassiz, Poiss. Poss. vol. v. pt. i. p. 32, pi. xh'iii- 
fig. 4. [Imperfect trunk ; Breslau Museum.] 
1844. Perea nrasehista, A. E. Iteuss, Geogu. Skizzen aus Bohmen, 
vol. ii. p. 25!). 
1851. Perea uraschista, II. von Meyer, Pahoontogr. vol. ii. p. 67, pi- x '- 
figs. 1-3. 
1885. Plectropomn urascMsta, D. G. Kramberger, Bad Jugoslav. Akad. 
vol. Ixxii. p. 38, pi. ii. fig. 1, pi. v. fig. 2. 
Type. Imperfect fish ; Royal Bohemian Museum, Prague. 
A comparatively robust small species, attaining a length of about 
0'15, Length of head with opercular apparatus slightly less than 
maximum depth of trunk, which considerably exceeds one third the 
length of fish to base of caudal fin. Fourth dorsal fin-spine longest, 
the third twice as long as the first. 
The two dorsal fins are not so clearly separated in this species as 
in the typical P. angusta, and the tenth or hindermost spine has not 
been observed. 
Form. 4' Loc. Lower Miocene (Semi-opal) : Bohemia. 
21412 b. Distorted head and trunk, wanting end of caudal region, 
in counterpart ; Kutschlin. Purchased, 1847- 
P- 1917. Imperfect trunk; labelled as from Luschitz. 
Egerton Coll- 
The following specimen probably represents an undetermined 
species of Properca : — 
P. 3910. Robust fish about 0’05 in length, somewhat distorted ; 
Middle Oligocene (Lignite), Sieblos, Bavaria. 
Enniskillen Coll- 
The following are undetermined Percoids with three anal 
spines : — 
P. 1928, P. 3903. Slender fish 0-07 in length, in counterpart ; 
Upper Eocene, Monto Bolca. The preoperculum has 
antrorso serrations on the lower limb. Vertebr® appa- 
rently 10 + 14. Anterior dorsal fin with 9 spines, 
the third especially elevated and those behind rapidly 
