P ttO - HPOPHOP . im * : . 481 
Genus PELTOPLEURUS, Kner. '?&/>- 23 
[Sitzungsb. k. Akad. Wiss., math.-naturw. Cl. vol. liii. pt. i. 
1866, p. 180.] 
Trunk deeply fusiform. External bones nearly or quite smooth ; 
maxilla more or less arGhed and the oral margin convex ; teeth 
minute. Pelvic fins well-developed, but smaller than the pectorals; 
dorsal and anal fins short-based, the former arising in advance of 
the latter ; caudal fin forked. Scales thick and moderately over¬ 
lapping ; those of the middle of the flank excessively deepened, 
covering nearly the whole of it; dorsal and ventral scales few, at 
least as deep as broad. Lateral line passing directly along the 
deepened flank-scales, inconspicuous. 
Peltopleurus splendens, Kner. 
1866. Peltopleurus splendens, R. Kner, Sitznngsb. k. Akad. Wiss., math.- 
naturw. Cl. vol. liii. pt. i. p. 180, pi. iv. fig. 3. 
1886. Peltopleurus splendens , F. Bassani, Atti Soc. Ital. Sci. Nat. 
vol. xxix. p. 36. 
Type. Nearly complete fish; Museum of Imperial Geological 
Survey, Yienna. 
The type species, attaining a length of about 0‘06. Length of 
head with opercular apparatus contained nearly five times, and 
maximum depth of trunk about three-and-a-half times in the total 
length of the fish; width of caudal pedicle scarcely exceeding one- 
third the depth of the deepest flank-scale. Operculum two-and-a- 
half times as deep as its maximum breadth. Pelvic fins arising at 
the middle point of the trunk, the anal very shortly behind, and the 
dorsal opposed to the intervening space. Scales smooth, not serrated. 
Form. Sf Loc. Upper Trias: Raibl, Carinthia, and Besano, 
Lombardy. 
Not represented in the Collection. 
Peltopleurus kneri, sp. nov. 
[Plate XIV. fig. 4.] 
1858. Pholidopleurus typus?, H. G. Bronn, Neues Jahrb. p. 15, pi. i. 
fig. 16. 
Type. Imperfect fish ; British Museum. 
A species about as large as the type, but with smaller head and 
more elongated trunk. Length of head with opercular apparatus 
contained six times in the total length of the fish. Pelvic fins 
arising much in advance of the middle point of the trunk, and the 
part m. - 2 i 
