PHOLIDOPHORIDiE. 465 
robust, and its longitudinal striations delicate ; angle of the 
preoperculum with few short, radiating ridges. Pelvic tins arising 
far in advance of the middle point of the trunk, and the dorsal fin 
opposed to the space between the pelvic and anal tins. Scales 
large and smooth, the hinder margin strongly though finely serrated, 
and the sharp points passing into conspicuous crenulations when the 
surface is partly abraded; five longitudinal flank-series deeper than 
broad. 
Form. § Loc. Lower Lias : Dorsetshire. 
P. 1047. Xearly complete fish 018 in length, shown of the natural 
size in PI. XII. fig. 7: Lyme Pegis. The maxilla and 
two supramaxillaries are well shown, and all the opercular 
elements are distinguishable, with some -branchiostegal 
rays below. The small pectoral fins are nearly complete, 
and exhibit very delicate, slender fulcra ; and remains of 
the pelvic, anal, and dorsal fins indicate their precise 
relative positions. The caudal tin is complete, and both 
this and the dorsal are conspicuously fulcrated. The 
squamation is well preserved, and attention may be called 
to the large ridge-scale on the upper border of the caudal 
pedicle. Egerton Coll. 
P. 3596. Large fish displayed from the ventro-lateral aspect, 
wanting the greater portion of the head and caudal fin, 
and the dorsal part of the trunk; Lyme Pegis. Minute 
fulcra are distinctly shown on the pelvic fins, and some¬ 
what larger fulcra on the anal fin. One enlarged median 
ventral scale and a pair of smaller scales behind evidently 
denote the position of the anus immediately in front of 
the anal fin. Enniskillen Coll. 
36472. A smaller specimen, much broken but wanting only the 
pelvic fins ; Lyme Pegis. Purchased , 1862. 
38531-32. Pish about 0*16 in length, wanting the anterior half of 
the head, and another distorted specimen ; Lyme Pegis. 
The operculum, suboperculum, and preoperculum (this 
with short radiating ridges) are well shown in the first 
specimen ; a clavicle is displayed in both. 
Purchased , 1864. 
41906. Imperfectly preserved fish 0*145 in length ; Lyme Pegis. 
Purchased, 1870. 
2 n 
PARI III. 
