PLATE 63 



Figs. I, 2. Rhadinichthys devonicus (Clarke). Fin-rays, highly magnified. 

 Part of same specimen as cranial plates shown in Plate 62, figure 4. E 2049, P- 184- 



Fig. 3. Rhadinichthys antiquiis (Williams). Caudal extremity of fish, showing 

 scales and the fulcra of lower lobe. X 5. E 2065, p. 186. 



324 



