Family 13.—POLYNEMIDÆ. (3 Genera, 23 Species.)
"Marine or fresh-water fishes, with compressed oblong bodies and entire or ciliated scales."
Distribution.—Tropical seas and rivers of both the great oceans, but most abundant in the Pacific.
Family 14.—SPHYRENIDÆ. (1 Genus, 15 Species.)
"Carnivorous marine fishes, with elongate sub-cylindrical bodies covered with small cycloid scales."
Distribution.—The warm and tropical seas of the globe.
Family 15.—TRICHIURIDÆ. (7 Genera, 18 Species.)
"Marine fishes, with elongate compressed bodies covered with minute scales or naked."
Distribution.—All the tropical and sub-tropical seas.
Family 16.—SCOMBRIDÆ. (20 Genera, 108 Species.)