154 
ACTIXOPTERYGII. 
Bapedius jugleri, F. A. Roemer, Yerstein. Norddeutsch. Oolithen- 
Geb., Nachtr. (1839), p. 53, pi. xx. fig. 35.—Upper Lias; 
Werther, Westphalia. [Head and anterior scales.] 
Bapedius notabilis: Tetragonolepis notabilis, A. Wagner, Sitzungsb. 
k. bay. Akad. Wiss. 1860, p. 40 (footnote): Bapedius 
punctatus , F. A. Quenstedt ( errore ), Der Jura (1858), 
p. 226, pi. xxvii. figs. 4-12, pi. xxviii. figs. 3, 4, pi. xxix. 
figs. 1, 2.—Upper Lias ; Wiirtemberg. [Fragments ; 
Tubingen University Museum.] 
Bapedius olifeoc , F. A. Quenstedt, Der Jura (1858), p. 89, pi. xi. 
figs. 18-26.—Upper Lias ; Wiirtemberg. [Skull and 
fragments ; Tubingen University Museum.] 
The undefined name Bapedius arenatus was given by Agassiz 
(Poiss. Foss. vol. ii. pt. i. 1844, p. 304) to an unknown fossil from 
the Lower Lias of Lyme Regis. An imperfect example, apparently 
of B. colei, in the Egerton Collection (P. 1568), is thus labelled by 
him. 
Here may also perhaps be placed the teeth from the Lower Lias 
of Lyme Regis recorded under the undefined name of Sphceroclus 
microdon, L. Agassiz, Poiss. Foss. vol. ii. pt. ii. (1844), p. 216 (name 
only). 
An imperfectly defined Upper Jurassic genus, closely related to 
Bapedius , is named Heterostrophus 1 (A. Wagner, Abh. k. bay. 
Akad. Wiss., math.-phys. Cl. vol. ix. 1863, p. 614), and is known 
by a single species, H. latus (A. Wagner, ibid. p. 615), from the 
Lower Ivimmeridgian (Lithographic Stone) of Solenhofen, Bavaria. 
The type specimen is preserved, in. the Palaeontological Museum, 
* 
Munich, and measures about 0*33 in length to the base of the 
caudal fin. The external bones and scales are smooth, and the 
comparatively stout and small inner teeth are marked on the crown 
with radiating grooves. Fragmentary evidence probably of a similar 
fish from the Oxford Clay of Peterborough is preserved in the 
Genus CLEITHROLEPIS, Egerton. * rfs i 
[Quart. Journ. Geol. Soc. vol. xx. 1864, p. 3.] 
Trunk much laterally compressed, very deep, and the dorsal 
border strongly arched. Head comparatively small, with well- 
developed opercular bones arranged in an arched series ; operculum 
1 Printed Heterostichus in Gelehrte Anzeig. k. bay. Akad. Wiss. 1860, p. 93. 
