108 PISCES CLASS I 



Ag., Vomer, Cuv., Caranx, Cuv., Carangopsis, Ag., Lichia, Cuv., Ductor, Ag., 

 Trachinotus, Lac6p., Seriola, Eqmila, Cuv., Acanthonemus, Ag., etc. 



Family 13. Coryphaenidae. 



Trunk laterally compressed. Teeth small and conical or wanting. Dorsal fin 

 extended, without spines. Eocene to Eecent. 



Here is placed the genus Mene, Lac6p. (Gasteronemus, Ag.), with extinct 

 species in the Upper Eocene of Monte Bolca. 



Family 14. Scombridae. Mackerels. 



Trunk elongated, naked or with small scales. Teeth conical. Pelvic fins thoracic .■ 

 two dorsal fins, the hinder usually consisting of separate tufts. Eocene to Recent. 



Thynnus, Cuv. The existing tunny. Mostly large cylindrical fishes, 

 covered with small scales. Anterior dorsal fin with twelve to fourteen spines, 

 which are not remarkably elongated ; six to nine small, separate, tufted fins 

 behind the posterior dorsal fin. Teeth small. Several species in the Upper 

 Eocene of Monte Bolca, the Miocene of Oran, Algeria, and the Pliocene Crags 

 of Belgium and England. 



The genera Palimphyes, Ag. ; Isurichthys, Woodw. ; Opisthomyzon, Cope 

 (allied to Echeneis, Art.), occur in the black slates of G-larus ; Orcynus, Cuv., 

 in the Upper Eocene of Monte Bolca ; Megalolepis, Kramb., in the Lower 

 Menilite shales of Baschka in Galicia. The existing genera Scomber, Art., 

 Auxis, Cuv., are represented in the Miocene of Croatia, and Cybium, Cuv., 

 in the Eocene, Oligocene, and Miocene. 



The families Cyttidae, Trachinidae, Lophiidae, Cataphracti, Cottidae, 

 Bleniidae, and Gobiidae have very few fossil representatives in the Tertiary. 



The earliest members of the families Mugilidae, Sphyraenidae, and 



Atherinidae occur in the Upper Cretaceous of England, Colorado, and New 

 Mexico {C alamo pi eurus, Dixon ; Syllaemus, Apsopelix, Pelycorapis, Cope). 

 Sphyraena, Bloch, Bhamphognathus, Ag., Mesogaster, Ag., and Atherina, Linn., 

 occur in the Upper Eocene of Monte Bolca ; Mugil princeps, Ag., in the Upper 

 Eocene of Aix-en-Provence. 



Family 25. Aulostomidae. Flute-mouths. 



Elongated marine fishes, with elongated tube-shaped snout and remote dorsal fin. 

 Occiput movahly articulated with the vertebral column; teeth small. Spines little 



developed. Pelvic fins abdominal or 

 thoracic. Scales small or absent. Eocene 

 to Recent. 



At the present day the Aulostomes 

 Fig. iss». chiefly inhabit tropical seas. Fistu- 



Amphisyle heinrichsi, Heckel. Upper Eocene ; Jariu Liuu , and Aulosfoma, Lac6p., and 

 Krakowiza, Carpathians. Nat. size (after Heckel). , ' . ' ^^ ' . '■ , 



the extmct genera Urosphen, Ag., and 

 Rhamphosus, Ag., occur in the Upper Eocene of Monte Bolca. The small, 

 dorsally armoured genus Amphisyle, Klein, which still survives, characterises 



