460 
ACTESTOPTERYGTI. 
P. 1065 a, b, c. Two imperfect portions of bead and trunk, and a 
much fractured specimen 0*23 in length ; Ohmden. 
Egertoyi Coll. 
19653. A small fish wanting the cranium and the greater part of 
the fins, but displaying the squamation; Boll, Wiirtem- 
berg. Purchased , 1845. 
P.1058. Imperfect hinder half of fish ; Whitby, Yorkshire. Fulcra 
are distinctly observed on the pelvic fin. Egerton Coll. 
P.4412. Much abraded and fractured specimen, about 0-235 in 
length, showing the general proportions of the fish; 
Whitby. Enniskillen Coll. 
P.1058 a-C. Two portions of the head and abdominal region, and 
an imperfect fish showing the ventral aspect; Whitby. 
Portions of the ornament of the head and opercular bones 
are well exhibited. Egerton Coll. 
P. 4406. Posterior abdominal and caudal region ; Whitby. 
Enniskillen Coll. 
P. 3704. Head and anterior flank-scales, probably of this species; 
Upper Lias, Ilminster. The rugae of the dentary and 
maxilla, so far as shown, are less regularly longitudinal 
than usual; while those of the anterior flank-scales are 
arranged in slightly radiating striations towards the 
hinder border. The roof of the skull exhibits the parietals 
and frontals, and the wavy median suture ; while the 
branching sensory canal is distinct on the lower posterior 
suborbital plate. Enniskillen Coll. 
32452. Caudal pedicle and fin, probably of this species; Upper 
Lias, Caen, Normandy. Tesson Coll. 
J C H tie n C‘<zr*-<X- 
Pholid opho r u s purbeckensis, (Davies.^ 
1887. Pholidophorus purbeckensis, W. Davies, Geol. Mag. [3] vol. iv. 
p. 337, pi. x. figs. 2-4. 
1887. Pholidophorus brevis , W. Davies, ibid. p. 338, pl.x. fig. 1. [Im¬ 
perfect fish ; British Museum.] 
1888. Pholidophorus purbeckensis, W. Davies, in It. Damon, Geol. 
Weymouth, ed. 3, Suppl. pi. xix. fig. 1. 
Type. Imperfect fish ; British Museum. 
A small species, attaining a length of about 0-09. Length of 
head with opercular apparatus about equal to the maximum depth 
