﻿482 ACTIN0PTERYG1I. 



43430. A much elongated large trunk, perhaps owing its form to 

 accidental crushing, and, if so, referable to P. magnus ; 

 Riechelsdorf. 



Presented by Kenneth Murchison, Esq., 1872. 



Palaeoniscus macropomus, Agassiz. 



1833. Palesoniscus macropomus, L. Agassiz, Poiss. Foss. vol. ii. pt. i. 



pp. 5, 81, 103, pi. ix. figs. 6, 7. 

 1877. Palesoniscus macropomus, li. H. Traquair, Ganoid Fishes Brit. 



Carb. Form. (Pal. Soc), pi. i. figs. 1-3. 



Type. Small fish wanting extremity of tail. 



A species closely related to P. freieslebeni, but distinguished, 

 according to the original diagnosis, by the less tapering form of the 

 caudal region, the relatively larger size of the head, the greater 

 breadth of the opercular apparatus, and the comparative straightness 

 and elongation of the branchiostegal rays. The scales of the flank are 

 also said to be less vertically elongated than those of the type species 

 — a somewhat doubtful distinction. 



Form. Sf Loc. Upper Permian : Thuringia. 



Figr. 55. 



Palesoniscus macropomus, Agassiz. — Restoration by R. H. Traquair. 



All the following specimens are preserved in nodules from the 

 Kupferschiefer of Ilmenau, near Henneberg, and those forming part 

 oftheEgerton and Enniskillen collections are assigned to this species 

 by Agassiz, torn. cit. p. 103 : — 



P. 1029, P. 3427. Five imperfect individuals about 0-2-0-23 in 

 length, two being in counterpart. 



Egerton 8f EnnisJcillen Colls. 



P. 3427 a, P. 4349. Small trunk, and part of the squamation of a 

 large individual labelled by Agassiz. Ennislcillen Coll. 



