18 
ACTINOPTEKYeil . 
and figured by Davis. Minute blunt, teeth aro observed 
in the mandible, and the foremost branchiostegal rays aU ' 
very numerous and slender. The vertebrae cannot he 
counted in the abdominal region, but the caudals are about 
20 in number in advance of the hypural. Small inter 
muscular bones are conspicuous in both regions. Th e 
dorsal fin is distinctly longer than deep, though imperfect , 
the anal fin exhibits 10 supports. Lewi* CoU » 
P. 6024. A finer specimen of almost the same size, shown in PL 
fig. 3, from the left lateral aspect. Traces of the minute 
blunt teeth are seen in the jaws, and the upper branchi- 
ostegal rays are shown to be comparatively short an 
broad. The characteristic vertebral centra are display® > 
nearly all slightly deeper than long, 20 or 21 belonging 
to the caudal region in advance of tho hypural, and 3° 
shown in the abdominal region behind the posterior 
margin of the operculum. The ribs and intermuscular 
bones are very slender; the expanded haemal and neural 
spines at the base of the caudal fin resemble those in th® 
typical 0. lewestewit, Tho dorsal fin is apparently nearly 
complete, exhibiting 17 or 18 supports and as many rays, 
the latter readily splitting into their two halves and very 
closely articulated distally ; its extent equals the distance 
between it and the caudal fin. The small anal fin b a9 
at least 9 rays, which, like those of the dorsal, caudal, 
and pelvic fins, are very closely articulated distally- T1 * e 
exposed area of the scales is much deeper than bi° ’ 
and apparently smooth. 
Presented by Prof. W. K. Parker, l 889. 
The following specimen seems to represent another specie® °i 
Osmeroides (named Osmeroides maximug by J. W. Davis, Trans. B°y* 
Dublin Soc. [2] vol. hi. 1887, p. 566), but is too imperfect to adB»* 
ot formulating a specific diagnosis : — 
P. 4765. 
Distorted and crushed remains of a fish measuring &L- 
0-3 in length to the base of the caudal fin, described 
Davis, loc. cit . ; Upper Cretaceous, Sahel Alma, 
Lebanon. The most conspicuous feature is the 
ornamentation of the facial and opercular bones. 
Lewi s 
