432 WELLBURN : FISH FAUNA OF THE LOWER COAL MEASURES. 
Fig. 9 
Fie. 10 
Explanation of Plates. 
Plate LXI. 
Fig. 1. Sphenacanthus s]y. newl a — Magnified view of : 1. Primary 
denticles on posterior border. 2. Secondary denticles 
between last and most posterior ridge. 3. b — Trans- 
verse section at c. 
Fig. 2. Acanthodes wardi Eg. Fin Spine of. 
Fig. 3. Diplodus gibbosus Ag. Tooth of. 
Fig. 4. Megalichthys hibberti Ag. 
Fig. 5. Strepsodus sauroides Bin. 
Fig. 6. Janassa. Tooth of. 
Fig. 7. Pleuroplax rankinei Agassiz. Tooth of. 
Fig. 8. attheyi W. J. Barkas. ,, 
I Helodus sp. ? Tooth of. 
Fig. 11. Rhizodojjsis sauroides Williamson. Scale of. 
Fig. 12. Coelacanthus elegans Newberry. Jugular plate of. Inner 
surface. 
Plate LXII. 
Fig. 1. Elonichthys binneyi Traquair. Br. — Branchiostegal ray.s. 
CI. — Clavicle. Icl. — Infraclavicular. Scl. — Supra- 
clavicular. L.L, — Lateral line. D.F. — Dorsal. P.F. — 
Pectoral. V.F.— Ventral. A. F.— Anal fins. A.S.— 
Anal Scales. T.P.— Tail pedicle. 
Fig. 2. Elonichthys binneyi Traquair. Scales of. a — Under 
surface, b — Anterior Hank, r — Posterior Hank, d — 
Caudal; and e — Ventral scales enlarged. 
Fig. 3. Rhadinichthys moneiisis Egerton sp. Scales of, from : 
a — Neck. b — Anterior flank. c— Posterior flank. 
d — Lateral line. ^-—Ventral: and /—Ridge scales 
enlarged. 
Fig. 4. Elonichthys seniistriat US Traquair. Posterior flank scales 
enlarged, b — From a more ventral position than b. 
Fig. 5. Elonichthys aitkeni Traquair. a — Flank. b — Ventral 
scales enlarged. 
Fig. 6. Acrolepis hopkinsi McCoy, ff — Flank, b — Ventral scales 
enlarged. 
Fig. 7. Platysomus parvulus Agassiz, <i — Flank scale. b — 
Maxilla, both enlarged. 
