2S8 
ACII>'OPIEETGII. 
Esox lepidotus, Agassiz. 
1708. Zucius (intediluvianuSj J. J. Scheiiclizer, Pisciiim Querelae et 
Yindicise, pi. i. 
1755. Figiu'e by G. W. Knorr, Samml. !Merlrsvitrdigk. Xatiir. pt. i. 
pi. XXTi. 
1818. Esox luciKs, H. 1). de Blainville, Xout. Diet. d'Hist. Nat. 
Yol. xxvii. p. 377 (errore). 
1832. Esox lepidotus, L. Agassiz. Neues Jabrb. p. 136. 
1839-43. Esox lepidotus, L. Agassiz, Poiss. Foss. yoI. t. pt. ii. p. 74, 
pi. xlii. 
1861. Esox rohustus, T. C. Winkler, Descript. Poiss. Foss. d'Oeningen 
(Natuiirk. Yerkandl. Holland. Haatsek. [2] toI. xiv.), p. 53, pi. r. 
figs. 17, 18, pi. ri. figs. 19. 20. Hniperfect distorted fish : British 
Museum. 
Type. Imperfect fish ; Zurich Museum. 
A species attaining a length of about 0’7. Head -with opercular 
apparatus occupying nearly one third of the total length to the 
base of the caudal fin. Dorsal and anal fins each comprising about 
15 divided and articulated rays preceded by 3 or 4 short undivided 
rays. Pelvic fins nearer to the anal than in E. Jucius, and scales 
considerably larger than in the latter species. 
It is difiicult to count the fin-rays owing to imperfections and 
displacement of their right and left halves during fossilisation, but 
the formula given for the dorsal and anal is approximately correct. 
Form. Toe. Fpper Miocene: Oeningen, Baden. 
42776. Large fish about 0‘7 in length, in counterpart, the jaws 
figured by Winkler, op. cit. pi. vi. fig, 19. 
Fan Breda Coll. 
P. 9412. Equally large specimen. History unTcnoiun. 
42775. Imperfect distorted fish with displaced skull, in counterpart. 
described and figured by Winkler op. cit. as the type 
specimen of Esox rohustus. Van Breda Coll. 
42771-74, 42777. Eight specimens. Tan Breda Coll. 
P. 2084. Imperfect fish about 0’48 in length, labelled by Agassiz. 
Egerton Coll. 
P. 9413. Fine specimen 0-42 in length, in counterpart. 
History unknown. 
28501. Fragmentary specimen labelled by Agassiz. Dixon Coll. 
P. 9414. Two immature specimens. History unknown. 
8044. Frasmentarv remains of head. Mantell Coll. 
