522 
ACTIXOPTERYGII. 
point between the pectorals and the anal; dorsal arising opposite 
the hindermost rays of the pelvic fins, larger and with more robust 
rays than the anal fin. 
The characters and variations of the scale-ornament in different 
parts of the body are well shown in no. P. 5594. 
Form. Sf Log. Lower Lias. 
P. 582, P. 3510. The type specimen, in counterpart. The pectoral 
and pelvic fins, with a fragment of the anal, are shown, 
the pelvic being mistaken by Egerton for the anal, and 
the true anal for the caudal. The enlarged figures of 
scales accompanying the original description are taken 
from the ventral region. Egerton Sf Enniskillen Colls. 
38123. Imperfectly preserved fish, wanting the upper caudal lobe, 
but showing the general form of the head and trunk, 
lateral (partly inferior) aspect, and displaying all the fins. 
The ornamentation of the head, opercular apparatus, and 
pectoral arch is shown ; and many of the flank-scales of 
the abdominal region, exposed from within, exhibit a 
sharp vertical keel, immediately anterior to the position 
of the peg-and-socket articulation. Purchased, 1864. 
P. 5594. Imperfect head and trunk, wanting fins and the extremity 
of the caudal region. The remains of the dentition, some 
of the jaw-bones, and the clavicle are shown, in addition 
to the squamation of the flanks. A few scales, from the 
middle of the flank, are figured by the present writer, loc. 
cit. - Harford Coll. 
Genus CRYPHIOLEPXS, Traquair. 
[Geol. Mag. [2] vol. viii. 1881, p. 491.] 
Trunk fusiform. Mandibular suspensorium oblique; dentition 
consisting of an inner series of well-spaced, conical laniaries, and an 
outer close series of smaller conical teeth. Fins well developed, con¬ 
sisting of articulated, bifurcating rays, and with fulcra on the anterior 
border. Dorsal and anal fins elevated, triangular-acuminate, the 
former opposed to the space between the pelvic fins and the anal: 
caudal fin deeply forked, inequilobate. Body-scales thin, rounded, 
but seldom symmetrically so, deeply imbricating, destitute of an inner 
keel, and the exposed area ornamented with more or less irregular 
ridges, apparently hollow ; scales of upper caudal lobe elongate- 
rhomboidal. 
