﻿492 ACTINOPTERYGII. 



1833. Amblypterus eupterygius, L. Agassiz, ibid. pp. 4, 36, pi. i. fig. 8, 



pi. iii. figs. 5, 6. [Stuttgart Museum.] 

 L847. Amblypterus macropterus, Goldfuss, Beitr. vorweltl. Fauna 



Steinkolilengeb. p. 20, pi. v. figs. 1-8. 

 1848. Amblypterus macropterus, C. G. Giebel, Fauna der Vorwelt, 



Fische, p. 252. 

 1848. Amblypterus eurypterygius, C. G. Giebel, ibid. p. 253. 

 1857. Rhabdolepis macropterus, F. H. Troschel, Verhandl. naturh. 



Verein. preuss. Rheinl. u. Westphal. p. 15, pi. ii. fig. 15. 

 1857. Rhabdolepis eupterygius, F. H. Troschel, ibid. p. 15, pi. ii. fig. 14. 

 1873. Amblypterus eupterygius, F. Goldenberg, Fauna Sarsepontana 



Fossilis, pt. i. p. 5, pi. i. fig. 2. 

 1877. Rhabdolepis macropterus, R. H. Traquair, Quart. Journ. Geol. 



Soc. vol. xxxiii. p. 552, and Ganoid Fishes Brit. Carb. Form. (Pal. 



Soc), pi. ii. fig. 6. 



Type. Nearly complete fishes. 



A species of moderate [or large] size. Length of head with oper- 

 cular apparatus nearly equal to the maximum depth of the trunk, 

 which is contained about four and a half times in the total length ; 

 opercular apparatus very narrow ; cranial roof-bones tuberculated, 

 other external bones striated. Fin-rays longitudinally striated; 

 pelvic fins arising midway between the pectoral and the anal ; 

 median fins relatively large, the dorsal and anal of nearly equal 

 size. Scales relatively small, as broad as deep upon the flank, 

 ornamented with irregular delicate oblique striae, of which two, 

 three, or four at the inferior border of the flank-scales become 

 nearly parallel with that border ; hinder border without serrations. 

 This is the type species of Rhabdolepis, Troschel. 



Form. Sf Loo. Lower Permian : Ehenish Prussia \ 



15414. Fish in counterpart, 0*12 in length ; Lebach. 



Purchased, 1840. 



15598. Larger specimen, in counterpart, displaying striations upon 

 the maxilla, mandible, and fin-rays ; Lebach. 



Purchased, 1843. 



21529a. Small robust fish, in counterpart; Lebach. 



Purchased, 1847. 



22658 b. Two specimens in counterpart; Lebach. 



Purchased, 1848. 



1 Fragments of an uncertain species from the Coal-Measures of Wettin, Pro- 

 vince of Saxony, are also assigned to the so-called Amblypterus macropterus by 

 E. F. Germar, Verstein. Steinkolilengeb. Wettin (1849), p. 73, pi. xxix. figs. 

 10, 11. 



