﻿PALJSONISCIDiE. 



523 



Cryphiolepis striata, Traquair. 



[Plate XVI. fig. 9.] 



1881. Coslacanthus striatus, R. H. Traquair, Geol. Mag. [2] vol. viii. 



p. 37. 

 1881. Cryphiolepis striatus, R. H. Traquair, ibid. p. 491. 



Type. Detached scales ; collection of Dr. R. H. Traquair. 

 The type species (exact proportions at present unknown). Ex- 

 pansion of maxilla ornamented with closely arranged striae, mostly 

 parallel with its upper and hinder borders ; dentary stout behind, 

 tapering in front, marked with fine, close striae parallel with the 

 inferior, but oblique to the upper margin ; laniary teeth in mandible 

 stout, acutely pointed, and somewhat incurved. Ein-rays longitu- 

 dinally grooved or striated. Exposed area of body-scales rhom- 

 boidal, the ornament consisting of fine, closely arranged, subparallel 

 ridges, proceeding to the hinder border without convergence, rarely 

 bifurcating, but often intercalated; scales of caudal lobe faintly 

 grooved or smooth. 



Form. Sf Log. Middle Carboniferous Limestone Series (Blackband 

 Ironstone) : near Edinburgh. 



P. 4116. Group of scales, one shown, of three times the natural 

 size, in Plate XVI. fig. 9 ; Borough Lee. 



Presented by Dr. B. H. Traquair, 1883. 



A genus and species from the Lower Permian of Bohemia, closely 

 related to Cryphiolepis, is named Sphcerolepis kounoviensis, A. 

 Eritsch, Sitzungsb. k. bohm. Gesell. Wiss. 1877, p. 46. The type 

 specimens are preserved in the Royal Bohemian Museum, Prague, 

 and will be described in a forthcoming part of Eritsch's ' Eauna der 

 Gaskohle.' 



Genus COCCOLEPIS, Agassiz. 



[Poiss. Eoss. vol. ii. pt. i. 1844, p. 300.] 



Trunk elegantly fusiform. Mandibular suspensorium oblique ; 

 dentition consisting of an inner series of large laniaries flanked 

 externally with minute teeth ; external bones tuberculated or rugose. 

 Eins large or of moderate size, the rays of all articulated and branch- 

 ing dist ally ; fulcra minute or absent. Pelvic fins with short base- 

 line ; dorsal and anal fins triangular, the former opposed to the 

 space between the latter and the pelvic fins ; upper caudal lobe much 

 elongated, the fin deeply cleft and somewhat unsymmetrical. Scales 

 thin and deeply imbricating, ornamented with tuber culations of 

 ganoine. 



