310 
ACTINOPTERYGII. 
P. 8731-33. Detached pharyngeal teeth; Forest Bed Series, V^est 
and East lluntou and Sidestrand. Savin Co 
28079. Detached pharyngeal teeth ; Pleistocene, Grays, Essex. 
John Brovin Coll. 
The following extinct species are either based on specimens too 
imperfect for recognition or are not represented in the Collection • 
Leuciscus acrogaster, A. E. lleuss, Geogn. Skizzen aus Bohmen, 
vol.ii. (1844), p. 203; H. von Meyer, Neues Jahrb. 184», 
p. 427, and Palfcontogr. vol. ii. (1851), p. 65, pi- x11 ' 
fig. 4. — Lower Miocene (Semi-opal) ; Luschitz, Bohemia- 
[Distorted fish.] „ . 
Leuciscus bosniaskii, F. Bassani, Atti Soc. Venoto-Trent. 
Nat. vol. vii. (1880), p. 83, pi. viii. — Lower Miocene, 
Eibiswald, Styria. [Imperfect fish ; Imperial Geolo D ie 
Survey, Vienna.] 
Leuciscus brevicauda, F. G. Troschel, Verhandl. naturw. 
preuss. llheinl. vol. xi. (1854), p. 20, pi. ii. fig- 6 . 
Oligocene (Lignite) ; near Bonn. [Imperfect small 6 ’ 
liheinland Museum, Bonn.] 
Leuciscus brevis, L. Agassiz, Poiss. Foss. vol. v. pt. ii- (483 j 
p. 35, pi. lie. fig. 4.— Loc.? [Imperfect fish; u °- v 
Bohemian Museum, Prague.] _ 
Leuciscus ( Chondrostoma ?) bubahts, F. G. Troschel, loc. cit. ( 0 ^ 
p. 26, pi. ii. fig. 5. (?) Chondrostoma bubalus, • 
Krambcrger, Bad Jugoslav. Akad. vol. lxxii. ( ’ 
p. 38, and Soc. Hist. Nat. Croatica, vol. i- ( ’ 
p. 133. — Upper Oligocene ; near Bonn (in ^ 
(?) Warnsdorf, Bohemia. [Distorted fish; Bhei 
Museum, Bonn.] *knd. 
Leuciscus eibisivaldensis, D. G. lvramberger, Bad Jugoslav. ' 
vol. cvi. (1891), p. 93, pi. vii. fig. 2. — Lower Miocen 
Eibiswald, Styria. [Imperfect fish.] ^ ^ 
Leuciscus gibbus, H. von Meyer, Palmontogr. vol. ii- (18ol)- P- 
pi. xv. fig. G, and ibid. vol. vi. (1856), p- 24, pi- i- _ 
Lower Miocene; Unterkirchberg, near Ulm, Wiirtem 
[Imperfect fish.] an d 
Leuciscus heterurus, L. Agassiz, Neues Jahrb. 1 83-, P - 
Poiss. Foss. vol. v. pt. ii. (1835-39), p. 2/ , pi- Hi’- . . 
Upper Miocene ; Oeningen, Baden. [Imperfec 
olim Lavater Coll., Ziirich.] 200 
Leuciscus medius, A. E. Keuss, op. cit. vol. ii. (1844), P- 
