﻿444 ACTTNOPTHRYGTT. 



tious, those immediately behind the pectoral arch also marked with 

 short oblique striae terminating in the serrations. 

 Form. $• Loc. Lower Permian : Autun, France. 



P. 3418. Type specimen. Ennislillen Coll. 



P. 3419. Well-preserved small trunk, with fins, noticed by Egerton, 

 loc. cit. Ennislillen Coll. 



P. 986, P. 3417. Partially scattered remains of large trunk and 

 median fins, in counterpart. Egerton § Ennislillen Colls. 



P. 3417 a. Smaller imperfect trunk and fins. EnnishiUen Coll. 



Amblypterus decorus (Egerton). 



1850. Palceoniscus decorus, Sir P. Egerton, Quart. Journ. Geol. Soc. 



vol. vi. p. 7, pi. ii. 

 1877. Amblypterus decorus, E. H. Traquair, ibid. vol. xxxiii. p. 558. 



Type. Eish with imperfect head ; British Museum. 



A large species, attaining a length of not less than 0-25. Form 

 and proportions of head, trunk, and fins as in A. beaumonti; ex- 

 ternal bones similarly ornamented with vermiculating rugas. Scales 

 all smooth, without posterior serrations, except feeble traces in the 

 anterior ventro-lateral region : principal scales of flank scarcely 

 deeper than broad. 



Form. $- Loc. Coal-Measures : Commentry, Allier, France ; Harz 

 Mts. 



P. 607, P. 3420. Type specimen, being a fish wanting the greater 

 portion of the caudal region, but completely shown in the 

 counterpart impression ; Commentry. 



Egerton § Ennislillen Colls. 



28293. Dorsal half of abdominal region and the caudal pedicle ; 

 Commentry. Purchased, 1851. 



P. 3422. Imperfectly preserved fish wanting the extremity of the 

 tail, compared with this species by Egerton, loc. cit. p. 7 ; 

 Ilfeld, Harz. Ennislillen Coll. 



Amblypterus arcuatus (Egerton). 



1850. Palceoniscus arcuatus, Sir P. Egerton, Quart. Journ. Geol. Soc. 



vol. vi. p. 7, pi. i. fig. 1. 

 1877. Amblypterus arcuatus, B. H. Traquair, ibid. vol. xxxiii. p. 558. 



Type. Head and abdominal region ; British Museum. 



