Common names: menhaden (English), machete (Espanol)
Ethmidium maculatum (Valenciennes in Cuvier & Valenciennes, 1847)
Body deep, compressed; a keel of scutes along belly; a row of 21-30 scutes along back from nape to dorsal fin; top jaw with distinct central notch; snout slightly projecting; mouth large, reaching to rear margin of eye; no teeth; ~ 130-150 slender rakers on lower limb of 1st gill arch; dorsal at about mid-body, 16-20 rays; anal fin with short base, (ii, 12-15) with origin well behind dorsal fin; pelvic with 7 rays; a complete keel of scutes along belly from throat to anal fin origin; scales with vertical radii.
Silver; a dark spot behind gill cover, up to 4 series of vertical oval spots along flank.
Size: to 35 cm.
Habitat: marine, coastal, pelagic, in large schools.
Depth: 0-10 m?
Ecuador to Chile.