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| Common names: mackerel (English), caballa (Espanol), macarela (Espanol) |
Scomber australasicus Cuvier in Cuvier & Valenciennes, 1832
Spotted chub mackerel, Blue mackerel
Body elongate, rounded; fatty eyelid covering nearly all of eye; teeth at front and sides of roof of mouth; 2 well separated dorsal fins; first dorsal with X-XIII spines; distance between spine X and origin of second dorsal fin greater than distance between spines I and X; 5 finlets after second dorsal and anal fins; pectoral fins high; tail deeply forked; two small keels on each side of the slender tail base; lateral line simple; entire body covered with small scales.
Blue-grey upper body; zigzag lines along all of back and upper tail base; belly pearly white with thin undulating, discontinuous spotted lines.
Size: 47 cm.
Habitat: epipelagic, coastal.
Depth: 0-300 m.
An Indo-Pacific species; perhaps resident in the Revillagigedos.