﻿44(> ACTlNOPTERYl'Il. 



889. Palaoniscus blainvillei, Landriot, Compte-Itendu Soc. Eduemie, 



vol. i. p. 122, pi. fig. 2. 

 L877. Amblypterw (?) blainvillei, R. H. Traquair, Quart. Journ. Geol. 

 Soc. vol. xxxiii. p. 558. 



7///«?. Nearly complete fishes ; Strassburg Museum. 



Trunk short and deep, the maximum depth immediately in ad- 

 vance of the dorsal fin contained nearly three and a half times in 

 the total length. Head and opercular apparatus relatively small, 

 occupying less than one quarter of the total length ; external hones 

 marked with fine striae and rugae. Pelvic fins well developed, in- 

 serted halfway between the pectorals and the anal ; dorsal arising 

 about the middle of the back, relatively small, short-based, and 

 triangular, completely in advance of the anal, which equals it in 

 size and form. Scales large, those of the middle of the flank nearly 

 twice as deep as broad, all smooth and not crenulated. 



Form. $ Loc. Lower Permian ; Muse, near Autun. 



36051. Well-preserved specimen, 0*115 in length, wanting the 

 extremity of the upper caudal lobe. 



Presented by S. P. Pratt, Esq., 1857. 



41908. Slab of shale with remains of several individuals. 



Purchased, 1870. 



P. 996-7. Various fragmentary specimens, some perhaps referable 

 to the next species. Egerton Coll. 



P. 3469. Slab of shale with remains of three or four individuals, 

 and four other specimens. EnnisJcillen Coll. 



Amblypterus voltzi (Agassiz). 



1833. Palcemiscus voltzii, L. Agassiz, Poiss. Foss. vol. ii. pt. i. pp. 5, 



55, 83, pi. vi., pi. d. fig. 1. 

 1839. Palceoniscus voltzii, Landriot, Compte-Rendu Soc. Eduenne, 



vol. i. p. 122, pi. fig. 1. 

 1877. Amblypterus (?) voltzii, R. H. Traquair, Quart. Journ. Geol. Soc. 



vol. xxxiii. p. 558. 



Type. Nearly complete fishes ; Strassburg Museum and Museum 

 of Natural History, Paris.. 



A species closely related to A. blainvillei, but described as cha- 

 racterized by its somewhat more elongated shape, the relatively 

 larger size of the head and scales, and the smoothness of the oper- 

 culum. 



Form. Sf Loc. Lower Permian : Muse, near Autun. 



