94 GANOID FISHES OP THE CARBONIFEROUS FORMATION. 



concerned renders it impossible to designate with certainty the genus to which it belongs. 

 In fact, the last time I examined it tlie large size of the fulcra on the fins which are 

 present, impressed on my mind the possibility of its belonging to Eurynotus. 



1. Gonatodus punotatus, Ayassiz, sp. Plate II, rigs. 4, 5; Plate XIX; Text-figures 



2, 3a. 



Amblyptebus punctatus, Agassiz. Poiss. Foss., vol. ii, pt. i, p. 109, pi. ivc, fig. 4 



(nonfigs. 3, 5— 8), 1835. 

 — ANCONOiEcnMODUS, R. Walker. Trans. Edinb. Geol. Soc, vol. ii, 



pt. i, p. 119, with plate. 

 Gonatodus punctatus, Traquair. Quart. Journ. Geol. Soc., vol. xxxiii, 1877, p. 



555 ; and Proc. Roy. Soc. Edinb., vol. ii, 

 1877, p. 2G5 ; and Ganoid Fishes Brit. Carb. 

 Form. (Pal. Soc), 1877, pi. ii, figs. 4, 5 ; and 

 Trans. Eoy. Soc. Edinb., vol. xl, pt. 3, no. 

 28, 1903, p. 690. 

 — A. S. Woodward. Cat. Foss. Fishes Brit. Mus., pt. ii, 



1891, p. 434. 



Specific Characters. — Dentary margin of maxilla gently, not suddenly, curved down- 

 wards behind the region of the orbit; anterior part of orbital margin passing likewis e 



Fig. 2. — Restored figure of Gonatodus punctatus (Agassiz). 



gently downwards and forwards into the upper margin of the sub-orbital process, 

 posterior margin obtusely angulated below the middle ; teeth of medium size ; scales of 

 anterior part of flank usually striated as well as punctated. 



Description. — The length of entire specimens varies from 5|- to 7£ inches, but in 



