448 
ACTINOPTEETGII. 
43448. Head and trunk, wanting end of tail. 
Presented hy Kenneth Murchison^ Esq.^ 1872. 
The undefined name Carangopsis maximus was given by Agassiz 
(Heues Jahrb. 1835, p. 292) to a fish from Monte Bolca in the 
Paris Museum, originally referred to Scomber glauciis by G. S. Yolta, 
Ittiolit. Veronese (1796), p. xxxvii. pi. xxi. 
The so-called Cm'angoqysis lanceolatus (F. Bassani, Atti Soc. 
Veneto-Trent. Sci. Nat. vcl. v. 1876, p. 153, and Palaeont. Italica, 
vol. iii. 1898, p. 77, pi. viii. fig. 1), founded on a fish from Monte 
Bolca in the Geological Museum, University of Padua, does not 
belong to the family Carangidse. It may represent a species of 
Myi'ipristls. 
Genus DUCTOR^ Agassiz. 
[Poiss. Foss. vol. V. pt. i. 1844, p. 53.] 
Trunk much elongated but fusiform. Head much elongated, and 
supraoccipital crest insignificant; eye large ; mouth small and teeth 
minute ; preoperculum with fine radiating markings and apparently 
serrated; branchiostegal rays 7 or 8, relatively large. Paired 
fins small; an anterior dorsal fin of 6 or 7 feeble spines, closely 
followed by a more extended dorsal of articulated rays; anal fin less 
extended than posterior dorsal, probably with two small feeble spines 
in front; caudal fin small. Scales very small and uniform, all 
antero-posteriorly elongated; lateral line not observable. 
Ductor leptoson^s. 
Agassiz. 
1796. Callionymus vestmce, G. S. Yolta, Ittiolit. Veronese, p. cxl. 
pi. xxxii. bg. 2 {errore). ' 
1796. Gobius sfnyrnensis, G. S. Volta, ibid, p. ccxli. pi. Iviii. fig. 2 
(errore). 
1818. “ Callionymus vestence,^^ H. D. de Blainville, Nouv. Diet. d’Hist. 
Nat. vol. xxvii. p. 359. 
1818. “ Gobius smyrnensis,” H. D. de Blainville, ibid. p. 358. 
1834. Ductor leptosomus, L. Agassiz, Verhandl. Ges. vaterland. Miis. 
• Bohmen, p. 66 (name only). 
1835. Ductor leptosomus, L. Agassiz, Neues Jahrb. p. 293 (name only). 
1834-44. Ductor leptosomus, L. Agassiz, Poiss. Foss. vol. v. pt. i. p. 53, 
pi. xii. 
1876. Ductor leptosomus, F. Bassani, Atti Soc. Veneto-Trent. Sci. 
Nat. vol. iii. p. 184. 
Type. Imperfect fish; Museum of Natural History, Paris. 
The type species attaining a length of about 0-2. Length of head 
with opercular apparatus about twice as great as maximum depth 
