482 
ACTINOPTERYGII. 
anal midway between these and the caudal. Scales smooth, not 
serrated. 
Form. Sf Loc. Upper Trias : Raibl, Carinthia. 
P. 1099 a. The type specimen, counterpart of specimen described 
and figured by Bronn, loc. cit. Egerton Coll. 
P. 1099 b. A more imperfect, vertically-crushed fish, shown of the 
natural size in PI. XIY. fig. 4; displaying one median 
and one paired series of scales above the deepened flank- 
scales, also the situation of the very short dorsal fin (cl). 
Egerton Coll. 
Peltopleurus humilis, Kner. 
1850. Semionotus curtulus , 0. G. Costa, Atti Accad. Pontan. vol. v. 
p. 294, pi. vi. figs. 4, 5 (in part). 
1867. Peltopleurus hmnilis, 11. Kner, Sitzungsb. k. Akad. Wiss., math.- 
naturw. Cl. vol. lvi. pt. i. p. 905, pi. i. fig. 2. 
1892. Peltopleurus humilis, F. Bassani, Mem. Soc. Ital. Sci. [3] vol. ix. 
no. 3, pp. 12, 23. 
Type. Imperfect fish ; Innsbruck Museum. 
A species much smaller than the type, with relatively large head 
and more elongated trunk. Length of head with opercular apparatus 
equalling the maximum depth of the trunk and contained about 
four times in the total length of the fish ; width of caudal pedicle 
about equalling one-half the depth of the deepest flank-scales. 
Pelvic fins arising slightly in advance of 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: Tyrol; Giffoni, Province of Salerno, 
Italy. 
P. 1103. Slab with two imperfect specimens, one in counterpart; 
Seefeld. Egerton Coll. 
Another imperfect fish from Baibl, with horizontally striated 
flank-scales, now in the Museum of the Imperial Geological Survey, 
Vienna, is provisionally named Peltopleurus gracilis by R. Kner, 
Sitzungsb. k. Akad. Wiss., math.-naturw. Cl. vol. liii. pt. i. (1866), 
p. 183, footnote. 
Genus PLXITJROPHOIjIS, Egerton. 
[Figs. & Descript. Brit. Organic Remains, dec. ix. (Mem. 
Geol. Surv. 1858), no. 7.1 
Trunk elongate-fusiform, and upper caudal lobe conspicuous. 
External bones smooth or delicately ornamented with rugae and 
