yrg. lV<?s/v///f 37A />. 673, 7 ^ 
C ^pA 0 7 //*»/•.» >. -’ ' jec <?^o 
446 ^ ACT1N0PTERYG1I. ^ ''<?cfr CeAc^ 
639. Palceoniscus blainvillei, Landriot, Compte-Eendu Soc. Eduenne, 
vol. i. p. 122, pi. fig. 2. 
1877. Amblypterus (P) blainvillei , E. H. Traquair, Quart. Journ. Geol. 
Soc. vol. xxxiii. p. 558. 
Type. 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 bones 
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. 6,' Loc. Lower Permian ; Muse, near Autun. 
36051. "Well-preserved specimen, 0*115 in length, wanting the 
extremity of the upper caudal lobe. 
Presented by A. 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. Ec/erton Coll. 
P. 3469. Slab of shale with remains of three’ or four individuals, 
and four other specimens. Enniskillen Coll . 
Amblypterus voltzi (Agassiz). 
1833. Palceoniscus voltzii, L. Agassiz, Poiss. Foss. vol. ii. pt. i. pp. 5, 
55, 83, pi. vi., pi. d. fig. 1. 
1839. Palceoniscus voltzii , Landriot, Compte-Eendu Soc. Eduenne, 
vol. i. p. 122, pi. fig. 1. 
1877. Amblypterus (?) voltzii , E. H. Traquair, Quart. Journ. Geol. Soc. 
vol. x xx iii. 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, Loc. Lower Permian: Muse, near Autun. 
