﻿T>22 ACTrNOPTERYGII. 



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. $- Loc. 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 § Enrdskillea 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 CRYPHIOLEPIS, 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. 



