272 
ACTINOPTEEYGIl, 
Teeth apparently wanting on the margin of the jaws; but stout 
and blunt conical teeth present on some of the inner bones of the 
mouth, probably on the pterygoids and hyoid apparatus; upper 
branchiostegai rays comparatively broad. Vertebrae approximately 
50 in number, 35 being abdominal and the remainder caudal; ribs 
short and delicate. Paired fins relatively large, the pectorals not 
much exceeding the pelvic pair in size, the latter remote and 
opposed to the origin or anterior part of the dorsal, which is scarcely 
if at all behind the middle of the back; dorsal and anal fins each 
with from 7 to 12 rays ; caudal fin slightly forked. Scales distinctly 
elongated [but their hinder margin not yet observed]; no scales 
extending over the head ; strong fulcral scales on the borders of the 
caudal pedicle at the base of the caudal fin. 
Charitosomus formosus, W. von der Marck. 
1885. Charitosomus formosus, W. von der Marck, Palaeoutogr. vol. xxxi. 
p. 257, pi. xxiv. fig. 1. 
Type. Pish with imperfect head ; Geological Museum, Academy 
of Munster. 
The type species, known only by one imperfect specimen about 
0T5 in length. Pins arranged as in the next species, and the 
trunk nearly similar in proportions to that of the latter, but the 
caudal pedicle apparently more robust. 
Form. Log. Upper Cretaceous : Baumberg, Westphalia. 
Vot represented in the Collection. 
Charitosomus major^ sp. nov. 
[Plate XY. fig. 3.] 
Type. Imperfect fish ; British Museum. 
A species attaining a length of about 0’2. Length of head with 
opercular apparatus contained four and a half times, and maximum 
depth of trunk nearly nine times in the total length of the fish to 
the base of the caudal fin; depth of caudal pedicle about half that 
of the abdominal region. Dorsal fin almost median, arising just in 
advance of the middle point between the occiput and the base of 
the caudal fin; pectoral fin-rays when adpressed extending nearly 
half way to the pelvic fins, which arise opposite the anterior half 
of the dorsal; distance between the pectoral and pelvic fins about 
one and a half times as great as the length of the head with 
opercular apparatus ; anal fin arising slightly nearer to the caudal 
than to the pelvic fins. 
Form. Log. Upper Cretaceous : Sahel Alma, Mt. Lebanon. 
