CARANGfIDiE. SCOMBKID.E. 
451 
Toss. p. 8 , pi. lxxii. figs. 3-5, and woodc. — Middle Eocene 
(Calcaire Grossier) ; Paris. [Generically indeterminable 
imperfect fish ; Paris Museum of Natural History.] 
othing is known of the so-called Vomer parvulus (L. Agassiz, 
Poiss. Eoss. vol. v. pt. i. 1844, p. 31) from the Upper Cretaceous of 
Mt. Lebanon. 
The following otolith is supposed to belong to a member of this 
family : 
Otolitlmg ( Carangiclarum ) americanus, E. Koken, Zeitschr. 
deutsch. geol. Ges. vol. xl. (1888), p. 277, pi. xvii. figs. 
1—3. — Lower Tertiary; Vicksburg & Jackson River, 
Mississippi. 
The existing genus Echeneis, with the anterior dorsal fin modified 
! nto ar > adhesive disk, is usually placed with the Seombridae ; but 
'f is represented by an extinct species in the Oligocene slates of 
Canton Glarus, Switzerland, which is remarkable as exhibiting 
10 abdominal and 13 caudal vertebrae. This fish is known 
only by one specimen in the Berne Museum, which has the disk 
narrower and a little further back than in the typical Echeneis. It 
Ascribed as Echeneis glaronensis by A. Wettstein, Fisehfauna 
ertiaer. Glarnerschief. (Denkschr. schwciz. Palaeont. Ges. vol. xiii. 
^ 86 )> p. 82, pi. vii. fig. 10, and is discussed by R. Storms, Ann. 
Mag. Nat. Hist. [ 6 ] vol. ii. (1888), p. 73. The new generic name 
pisthomyzon is proposed for it by E. D. Cope, Amer. Nat. vol. xxiii 
( 18 89), p . 355 . 
Family SCOMBRIDAE. 
8n °nt not produced into an elongated rostrum ; no supramaxillse 
gape wide, and teeth conical, forming a more or less powerful 
dentition. Vertebra; from 28 to 160 in total number; centra of 
abdominal region with transverse processes in fusiform types, but 
Without these processes in the more elongate types. Pelvic fins, 
.en present, thoracic, with one spine and not more than five 
articulated rays ; spinous portion of dorsal fin more extended than 
‘riiculated portion ; usually' finlets behind dorsal and anal fins. 
Scales small or absent, and no bony scutes ; lateral line distinct. 
All the existing members of this family are marine, most of them 
e ’ n g pelagic, some characteristic of the deep sea. In outward 
8ha Pe and the development of the median fins, the genera are as 
2a 2 
