428 WELLBURN : FISH FAUNA OF THE LOWER COAL MEASURES. 
Body. Scales. Those on the anterior part of tlie body are 
higher than broad, but behind the dorsal fin they become more 
equilateral. The anterior covered area seems very narrow, and 
the articular spine and fossa, on the under surface, are well 
marked. 
Ornamentation. — On a Jiank scale it consists of "delicate 
wrinkles," a few of which run parallel with the anterior border, 
while behind this point they run across the scale in an anterior- 
posterior direction, with a tendency to converge into groups. 
Posterior border is denticulated. On the flank scales behind the 
dorsal fin the " wrinkles " run irregularly in a horizontal direction 
to the posterior denticulated margin. 
On the ventral scales the ornamentation is peculiar. The 
centre of the scale is occupied by three or four "wrinkles" 
which converge behind but spread out fanlike in front. These 
scales are also much lower than those on the flank. 
Lateral line is fairly well shown running from the centre 
of the posterior border of the supraclavicular, backwards towards 
the tail. 
Fi7is : Pectoral. — The proximal two-thirds shown, but character 
of rays too imperfect for description. 
Ventral.— Only root shown. 
Anal. — Proximal part shown, the rays being delicate, distantly 
articulated, and ornamented with one or two longitudinal sulci. 
Dorsal. — Imperfect, but character of the rays is well shown, 
the articulations being somewhat distant. The fin is placed 
opposite the interval between the anal and ventral fins. PI. LXIL, 
figs. 1 and 2. 
This specimen is very similar to a cast (of the type specimen 
in the Woodwardian Museum) which was kindly shown to me 
by Dr. R. H. Traquair, F.R.S., tfcc. 
Genus II.: Rhadinichthys Traquair, 1877. 
Sp. it. mo7iensis Egerton. Sp. 1850. 
'-'^ Fragment of a small fish from the Lower Foot Mine, 
* I propose to deal more fully with this specimen in a separate paper. 
