BERYCID^E. 
391 
Type. Nearly complete fish; British Museum. 
A species attaining a length of about 0'12. Length of head with 
opercular apparatus somewhat exceeding the depth of the abdominal 
region below the vertebral column. Maximum depth of trunk con- 
siderably less than its length, but four times as great os the width 
of the caudal pedicle. Fins as in A. heckdi. 
The so-called genus Acanthophoria is based on a specimen sup- 
posed by Kramberger to be specifically identical with the imperfect 
fishes originally named Page this libanicus by Pictet. 
Form. 4 - Loc. Upper Cretaceous : Sahel Alma, Mt. Lebanon. 
49582. Type specimen described and figured by Davis, loc. cit. 
There can scarcely have been more than 2(i vertebra, and 
of these only 14 are to be reckoned as caudal. Three 
slender spines and 14 divided rays are clearly indicated in 
the dorsal fin ; the spine in front of the pelvic fin is shown 
to be shorter than the divided rays which follow. 1 cry 
large gill-rakers are displayed on one of the branchial 
arches. Lewis Coll. 
48130, 49581, 49585. Three good specimens, the first showing a 
rudimentary fourth spine at the origin of the anal fin, 
and apparently 6 divided rays in one of the pelvic fins. 
Lewis Coll. 
46530, 47370-72, 47379, 48121, 48132. Seven more imperfect, 
distorted specimens ; the third showing the impression of 
a rudimentary fourth spine at the origin of the dorsal fin. 
Lewis Coll. 
1953 a. P. 4155 a. Imperfect small specimen, in counterpart. 
Egerton Sg Enniskillen Colls. 
48120. Still smaller distorted specimen, probably of this species. 
Lewis Coll. 
Genus PYCNOSTERINX, Heckel. 
[In ltussegger's lteisen, vol. ii. pt. iii. Its49, p. 337.] 
Syn. Imoyaster, O, G. Costa, Mem. R. Accad. Sci. Napoli, vol. ii. 1657, 
p. 102. 
Trunk more or less deepened and laterally compressed. Cleft of 
mouth large and little oblique, and jaws with very minute teeth ; 
preoperculum without spines. Vertebrae about 12 in the abdominal, 
16 to 18 in the caudal region. Pelvic fins arising below the origin 
