160 
ACTINOPTERYGUI. 
temperate regions of the northern hemisphere. It is only defmitelj 
known among fossils by unimportant fragments of Pleistocene age, 
of which there are none in the Collection. 
The following supposed extinct species is doubtfully hete 
mined : — 
Sal/mo (?) immiyralus, D. (i, Kramberger, Rad Jugoslav. Aka 
vol. cvi. (1891), p. 102, pi. vii. fig. 4.— Upper Miocene ; 
near Podsused, Croatia. [Portion of trunk ; Universi ) 
Geological Museum, Agram.] 
The following supposed extinct genus and species is known 
by the skull, which resembles that of Salmo but has the max 1 a 
suhcylindric or rod-shaped instead of flat or laminar : — 
Bhabdofario lacustris, E. D. Cope, Proc. Amer. Phil. Soc. vol. x 
(1871), p. 546.— Pliocene ; Idaho. [The type species, as 
large as Salmo solar. ] 
The fish-remains described as follows are supposed to repress 1 ^ 
another extinct genus, Thaumaturws, closely related to Salmo, 
distinguished by the great obliquity of the cleft of the mouth 
the crimping of the scales. There are no examples in the 
lection. 
Thaumaturus furcatus, A. E. Reuss, Geogn. Skizze aus Bohmen, 
vol. ii. (1844), p. 264 ; G. C. Laube, Sitzungsb. Ver. h° t0 ^’ 
1900, p. 1, figs. 1-5. Aspius furcatus, H. von ’ 
Pahcontogr. vol. ii. (1851), pp. 59, 64, pi. viii. fig 8 - , 
Aspius elongatus , H. von Meyer, ibid. p. 61, pi- x11- ® ' ’ 
6. — Lower Miocene : Kutschlin, Bohemia. [The yP 
species. Imperfect fish.] 
Thaumaturus lusatus, G. C. Laube, Sitzungsb. Ver. Lotos, ’ 
p. 6. — Lower Miocene : Warnsdorf, Bohemia. L ^ 
showing impression of adipose dorsal fin ; Geolog 1 
Museum, German University, Prague.] 
Genus MALLOTUS, Cuvier. 
[Regne Animal, ed. 2, 1829, p. 305.] 
Head and trunk more or less laterally compressed, c ^° n ^ jjj e 
fusiform. Mouth deeply cleft and dentition very feeble ; man ^ 
prominent. Paired fins relatively large, the pelvic pair opp° s ^ 
the short median dorsal ; anal fin not much extended ; cau 
forked. Scales minute, slightly enlarged along the lateral hne. 
Only one species is known. 
