146 
ACTIXOPTERYGII. 
1858. Dapedius pholidotus, F. A. Quenstedt, Der Jura, p. 228, pi. xxxi. 
figs. 1-7. 
1860. Tetrcigonolepis pholidotus , A. Wagner, Sitzungsb. k. bay. Akad. 
Wiss. p. 41. 
Type. Imperfectly preserved fish ; Stuttgart Museum. 
A small species, attaining a length of about 0-25-0-3. Maximum 
depth of trunk three-quarters as great as its length (exclusive of 
the caudal fin) and equalling nearly four times the depth of the 
caudal pedicle. Head with opercular apparatus occupying one- 
quarter of the total length of the fish; the external bones ornamented 
with numerous large, rounded tuberculations, sometimes fused into 
short rugae on the cranial roof and facial bones. Marginal teeth 
unicuspid and comparatively slender. Scales smooth or faintly 
wrinkled in the anterior half, and the hinder border not serrated; 
tuberculations absent on all the ventral scales except the ridge- 
series, where they are represented chiefly by elongated rugae. 
Form. 6f Log. Upper Lias : Wiirtemberg and Hormandy, 
I? 
36049. Typical specimen about 0-275 in length, wanting the bones 
on the exposed left side of the head, the paired fins, the 
dorsal fin, and the greater part of the anal fin ; Lias e, 
Metzingen, near Beutlingen. Purchased, 1861. 
P. 1574 a, P. 1563 b, c, P. 1573. A similar specimen showing the 
marginal teeth and part of the cranial roof; also two 
very imperfect fishes wanting the dorsal region and a 
fragmentary small specimen ; Ohmden, near Boll. 
Egerton Coll. 
P. 3568-9. Three large fishes with imperfect fins, all showing part 
of the dentition and one well displaying the squamation; 
also remains of a small head, with the impression of some 
anterior scales and a pectoral fin ; Ohmden. 
Enniskillen Coll. 
P. 4401. Another imperfect large fish, exhibiting an inner view of 
the left opercular and branchiostegal apparatus; Ohmden. 
Enniskillen Coll. 
18512. Head and the greater part of the squamation of a large 
individual; Ohmden. Some of the teeth and the super¬ 
ficial ornament are well shown. Purchased , 1844. 
19660-61. Two very imperfect fishes, exhibiting part of the super¬ 
ficial ornament and a large portion of the squamation; 
Boll. Purchased , 1845. 
