﻿PAUEONISCID.E. 489 



very minute. Scales relatively small ; those of the flank somewhat 

 deeper than broad ; none serrated. Scale-ornament consisting of 

 oblique stria?, simple, bifurcated, or intercalated, extending from the 

 anterior and superior borders and passing postero-inferiorly into either 

 irregular reticulations (on the principal flank-scales) or sparse pittings 

 (on the other scales). 



Form. Sf Loc. Coal-Measures : Staffordshire, Lancashire, and 

 Northumberland. 



P. 4468. Left dentary bone ; Knowles Ironstone Shale, Fenton, 

 North Staffordshire. Enni&lcillen Coll. 



P. 1002. Fragment of squamation ; North Staffordshire. 



Egerton Coll. 



P. 3431. Two small groups of scales ; Longton, North Staffordshire. 



EnnisJcillen Coll. 



P. 3413. Group of scales; Fenton. EnnisJcillen Coll. 



P. 1002 a. Imperfectly preserved flank-scales, probably of this 

 species ; Longton. Egerton Coll. 



P. 5200. Pectoral fin and scales ; (?) North Staffordshire. 



Purchased, 1885. 



Elonichthys peltigerus, Newberry. 



1856. Elonichthys peltigerus, J. S. Newberry, Proc. Acad. Nat. Sci. 



Philad. vol. viii. p. 98. 

 1866. Palceoniscus peltigerus, Newberry & Worthen, Pal. Illinois, vol. ii. 



p. 17, woodc. fig. 1. 

 1873. Palceoniscus peltigerus, J. S. Newberry, Rep. Geol. Surv. Ohio, 



vol. i. pt. ii. p. 345, pi. xxxviii. fig. 1. 

 1877. Elonichthys (?) peltigerus, R. H. Traquair, Ganoid Fishes Brit. 



Carb. Form. (Pal. Soc), p. 49. 



Type. Imperfectly preserved fish ; Columbia College, New York. 



A species of moderate or small size. Head with opercular 

 apparatus occupying about one quarter of the total length ; 

 external bones finely and irregularly striated. Fin-rays longitudin- 

 ally striated. Scales of moderate size, ornamented with fine, 

 oblique striae, more or less irregular, branching, and intercalated, 

 and terminating at the hinder border in delicate serrations. 



Form, fy Loc. Coal-Measures : Ohio and Illinois. 



P. 1004. Imperfectly preserved fish, wanting the greater portion 



