rERCIDJE. 
519 
Sieblos, Bavaria. [Imperfect fish ; Geological Museum, 
University of Wiirzburg.J 
The following indeterminable fragmentary remains from the Lower 
Eocene (London Clay) of Sheppey, Kent, also seem to belong to 
genera of the family Percidce : — 
P- 642. Hinder half of cranium labelled by Agassiz as intended to 
be the type specimen of Cceloperca latifrons, recorded by 
name only in ltep. Brit. Assoc. 1844 (1845), p. 307. 
Egerton Coll. 
P- 648. Three fragmentary small heads labelled by A n assiz as 
intended to be the type specimens of Podocephalxis nitidus, 
recorded by name only, loc. cit. p. 307. Egerton Coll. 
P- 1743, P. 3920. Four fragmentary specimens ascribed to Podo- 
cephalus by Egerton. Egerton $ Enniskillen Colls. 
P- 643. Imperfect head labelled by Agassiz as intended to be the 
typo specimen of B rachygnathus tenuiceps, recor e >y 
name only, loc. cit. p. 307. Egerton o 
36135. Similar head, better preserved. This fossil appears to be 
generically and specifically identical with that in the 
Royal Collego of Surgeons named Scianuru* longior by 
If." Owen, Catal. Foss. Kept. & Pisces, Mus. Boy. Coll. 
Surg. (1854), p. 171, no. 683. Purchased, 1861. 
P. 1698 b. Fragmentary smaller head, &c. Egerton Coll. 
P- 639. Fragmentary remains of head labelled by Agassiz as 
intended to bo the type specimen of Percostoma angvsta, 
recorded by name only, loc. cit. p. 307. Egerton Coll. 
32388. Head of the same form as that in the Royal College of 
Surgeons named Planesox vorax by Owen, Catal. Foss. 
Rept. & Pisces, Mus. Roy r . Coll. Surg. (1854), p. 9, 
no g-g Purchased, 1857. 
41319. Imperfect smaller nearly similar head. Purchased, 1869. 
P. 1698 x. Hinder portion of nearly similar head. Egerton Coll. 
The following genera and species, not represented in the Col- 
lection, are too imperfectly known for discussion, but most of them 
seem to represent extinct Percoids : — 
Oligoplarchus tq ua mipinnis, E. D. Cope, Amer. Nat. vol. xxv. 
