Family SCOMBERESOCIDAE 
Body elongate compressed. Head with both maws more or less 
prolonged, forming slender beak, upper jaw always longer. Eye nearly median, 
high. Teeth weak, pointed. Maxillary and premaxillary firmly joined. Gill 
rakers slender, numerous, long. Pharyngeal bones with fourth upper on each 
side absent or fused with third, which greatly enlarged, distinct from its 
fellow and oovered with tricuspid teeth; second with simple teeth; first 
toothless; lower ones united, form triangular bone with caacave surface, 
covered with tricuspid teeth. Scales very small, thin deciduous, with sugges¬ 
tion of mackerel. Dorsal and anal low, alike, each followed by 4 to 6 de¬ 
tached finlets. Paired fins small. 
A small group of pelagic fishes, usually found in large schools 
swimming near or at the surface in temperate seas* 
Analysis of Genera 
a^. Beak short, upper jaw of adult not extended and lower jaw with only 
short, flexible tip. Colplabjjg, 
a . Beak long, both jaws extended and slender. Sc ombe r e sox. 
Genus Cololabis Gill 
Cololabis GILL, Proc. U. S. Nat. Mus., vol. 18, p. 176, 1895. 
(Type, Scombresox brevirostris PETERS, orthotypic.) 
Jaws extended into a short beak, only half length of rest of head. 
Greatly like Scombresox and differing only in the short beak. 
Colola^jj sa-ira (Brevoort) 
Scomberescox saira BREVOORT, Narrat. Exped. China-Japan, Perry, p. 
281, pi. 7, fig. 4, 1856 (type locality* Simoda, Japan). 
