282 
ACTINOPTEEYGII. 
ray at least equalling half the length of the back from the occiput 
to the base of the caudal fin; anal fin, with 13 rays, arising some¬ 
what in advance of the middle point between the dorsal and the 
caudal, and distant from the latter a space equal in length to its 
own base-line ; the maximum elevation of the anal half that of the 
dorsal fin. 
Form. ^ Log. Upper Cretaceous : Sahel Alma, Mt. Lebanon. 
49528. Specimen figured by Davis, loc. cit. pi. xxvi. fig. 3. The 
cranium is shown to be long and narrow, and the quad¬ 
rate can be distinguished beneath it, the articulation for 
the mandible probably being below the anterior margin 
of the orbit. The mouth is opened, and a long and slender, 
gently arched bone in front may be the premaxilla. Both 
rami of the mandible are imperfectly preserved; but there 
are no traces of teeth. The branchiostegal rays are 
relatively large and scattered, but 12 can be counted, 
proving that there must have been at least 6 pairs. The 
clavicle is relatively small, though in the published figure 
detached bones below it are made to appear continuous 
with it. One of the pectoral fins is seen on the flank, and 
its single elongated ray is distinctly observable curving 
downwards, bifurcating at the distal end. Both pelvic 
fins are well preserved, but not spreading; and the 
characteristic dorsal and anal fins are depressed. 
Lewis Coll. 
49530. Specimen figured by Davis, loc. cit. pi. xxvi. fig. 4. The 
mandible is sufiiciently well preserved to indicate the 
relatively small size of the terminal mouth: and below 
the head there are remains of the large branchiostegal 
rays. The number of vertebrse is shown to be about 50, 
and the short ribs are covered by one of the pelvic fins. 
One of the small pectoral fins is seen at the lower border 
of the trunk immediately behind the branchiostegal rays. 
It is imperfect distally, but clearly exhibits 12 delicate 
rays. The pelvic fins are crushed as usual, so that one is 
above the other, the lowermost spreading and displaying 
17 rays, the uppermost closed. The dorsal fin seems to 
comprise about 16 rays, and some of its expanded trian¬ 
gular supports are well shown. It is difficult to determine 
whether or not delicate scales were present. Certain 
brownish markings, especially in the abdominal region. 
