104 
ACTINOPTEE.YGII. 
(?) 1863. Plesiodus pustulosus , A. Wagner, Abh. k. bay. Akad. Wiss., 
math.-phys. Cl. vol. ix. p. 638^ pi. vii. 
1867. Lepidotus palliatus, H. E. Sauvage, Catal. Poiss. Form. Second. 
Boulonnais (Mem. Soc. Acad. Boulogne-sur-Mer, vol. ii.), p. 19, 
pi. i. figs. 19-23. 
1867. Lepidotus radiatus , H E. Sauvage, ibid. p. 15 (in part). 
1875. Lepidotus giganteus , K. Fricke, Palseontogr. vol. xxii. p. 381, 
pi. xxi. figs. 7-9. 
1877. Lepidotus palliatus, H. E. Sauvage, Mem. Soc. Geol. France, [3] 
vol. i. no. 1, p. 18, pi. i. fig. 1, pi. ii. 
1880. Lepidotus palliatus , H. E. Sauvage, Bull. Soc. Geol. France, [3] 
vol. viii. pp. 458, 524, pi. xiii. fig. 1. 
1880. Lepidotus radiatus , H. E. Sauvage, ibid. p. 524. 
(P) 1885. Lepidotus palliatus F. Bassani, Atti Soc. Ital. Sci. Nat. 
vol. xxviii. p. 157, pi. ii. a. figs. 14-16. 
Type. Detached scales British Museum. 
A species attaining a length of about 2 metres. Trunk very 
robust, and head with opercular apparatus occupying somewhat less 
than one-quarter of the total length of the fish. Maximum width 
of operculum two-thirds as great as its depth, and equalling about 
one-third the length of the head. External bones more or less 
rugose or tuberculated; mandibular symphysis very robust, the 
dentary bone being much horizontally extended to support the large 
dentigerous splenial. All the teeth very short and stout and smooth, 
the inner and larger ones with gently rounded crown, the outer 
teeth more or less acuminate; splenial teeth in six or seven irregular 
concentric series, increasing in size within : pterygo-palatine teeth 
in four or five longitudinal series, increasing in size within; vomerine 
dentition increasing in size backwards, the anterior teeth very 
irregular, in about four or five longitudinal series, the largest 
posterior teeth comprising three successive pairs. Fin-fulcra very 
large ; pelvic fins arising midway between the pectorals and the 
anal; dorsal fin remote, arising considerably behind the pelvic pair; 
anal fin arising opposite the hinder extremity of the dorsal. The 
enamel of the scales comparatively thin, sometimes discontinuous, 
sometimes with few granulations ; principal flank-scales with a few 
broad ridges and furrows radiating from the centre to the hinder 
border, where they form indentations. 
In this definition, the statement of form and proportions is based 
upon the first specimen mentioned below. The characters of the 
dentition are more clearly seen in the French specimens described 
by Sauvage. The left mandibular dentition is shown in Mem. Soc. 
Geol. France, [3] vol. i. no. 1, pi. i. fig. 1, and the vomerine dentition, 
ibid. pi. ii. fig. 11. The left pterygo-palatine dentition is shown 
