346 
ACTINOPTERYGUI. 
Caturus (Strobilodus) giganteus (Wagner). 
1851. Strobilodus giganteus, A, Wagner, Abh. k. bay. Akad. Wiss. 
math.-phys. Cl. vol. vi. p. 75, pi. ii. 
1863. Strobilodus giganteus, A. Wagner, ibid. vol. ix. p. 674. 
Type. Imperfect fish ; Palaeontological Museum, Munich. 
The type species of the so-called genus Strobilodus , attaining a 
length of nearly 1 metre. Maxilla apparently more robust than in 
the preceding species, with concave dentigerous border and its 
middle teeth remarkably large and tumid, their height nearly 
equalling the depth of the bone at their insertion. Opercular 
bones finely punctate, wanting tubercular and rugose ornamenta¬ 
tion. 
Form. Sf Loc. Lower Kimmeridgian (Lithographic Stone) : 
Bavaria. 
Not represented in the Collection. 
Caturus (Thlattodus) suchoides (Owen). 
1866. Thlattodus suchoides, B. Owen, Geol. Mag. vol. iii. p. 55, pi. iii. 
1887. Strobilodus suchoides, K. x4.. von Zittel, Handb. Palseont. vol. iii. 
p. 230. 
1890. Strobilodus suchoides, Woodward & Sherborn, Catal. Brit. Foss. 
Yertebrata, p. 190. 
Type. Jaws ; British Museum. 
The type species of the so-called genus Thlattodus , known only 
by the jaws, which indicate a fish perhaps more than 1 metre in 
length. Maxilla and its dentition apparently almost similar in 
form and proportions to that of G. giganteus , but less deepened 
behind. Dentary attenuated and scarcely if at all deflexed at the 
symphysis. The indent at the base of the external face of the teeth 
very conspicuous. 
Form. Sf Loc. Kimmeridgian : Norfolk. 
41386. Type specimen ; Kimmeridge Clay, Downham, Norfolk. 
The robust prefrontal articulating with the maxilla is 
well shown on each side. 
Presented by C. B. Rose , Esq., 1869. 
Caturus cliftoni, sp. nov. 
[Plate VII. figs. 4, 5.] 
Type. Imperfect right maxilla; British Museum. 
Maxilla similar in form to that of C. suchoides , and at least as 
large, but the teeth much larger, the height of those at its middle 
