700 GEOLOGICAL SURVEY OF NEW JERSEY. 



SCOMBERESOX, Lac. 



(Sayris, Raf.) 



S. saurus, Walb. (scutellatum, Le S.) Billfisb. Saury. Skipper. 



Jaws form a beak, with feeble teeth ; lower jaw longer; pec- 

 torals and ventrals small ; dorsal and anal with finlets ; size 

 small, eighteen inches; air-bladder large; color olive brown 

 above, bordered sharply by silvery baud ; silvery below ; head 

 broad above, narrow below, tapering to slender, and pointed 

 beak ; caudal forked. 



" Occasionally a specimen of this species is caught in the bays, 

 but it does not appear to ever have been abundantly met with." 



HEMIRHAMPHUS, Cuv. 



H. unifasciatus, Ranz. Half-beak. 



Upper jaw short ; lower prolonged to beak, red at tip ; scales 

 large, deciduous ; large plates on head ; color greenish, with nar- 

 row silvery band. Dorsal rays, 14; anal rays, 15; length, 12 

 inches. Common southward ; run in schools. Cape Cod to 

 Panama and eastward. 



HALOCYPSELUS, Weinl. 

 H. evolans, L. 



Much like next, but with smaller pectorals ; olivaceous above, 

 with specks ; silvery blue below, pectorals black, with lower 

 border whitish. Dorsal rays, 13; anal rays, 13; 20 scales in 

 front of dorsal. Spawns on Atlantic coast in summer. Not 

 common. 



EXOCCETUS, L. 



B. rondeletii, Cuv. & Val. Flying-fish. 



Head blunt ; mouth small ; teeth feeble ; eyes large ; scales 

 large, deciduous ; no finlets ; caudal widely forked ; pectorals 

 very long, serving as organs of flight, not by flapping, but as 

 parachutes, the motion having been acquired by strokes of tail 

 before leaping from the water. This species has black ventrals. 

 Dorsal rays, 11 ; anal rays, 11. 



