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  Common names: scad (English), macarela (Espanol), caballa (Espanol), jurel (Espanol)
Decapterus macrosoma Bleeker, 1851

Shortfin scad

Elongate, slender, cylindrical; eye covered with adipose eyelid except for central slit; upper jaw bone concave on top and at end, rounded at the lower corner; front of shoulder that meets gill chamber with 2 moderate sized papillae; gill rakers (including rudiments) 10-13 + 34-38; dorsal rays VIII+I, 33-39 (including detached rear finlet); anal rays II+I, 27-31 (including detached rear finlet); pectoral fin 61-75% of head length; lateral line with long, low arch anteriorly; scales on straight part of lateral line 14-29, followed by 24-40 scutes, total scales and scutes in lateral line (excluding caudal scales) 110-126; branches of lateral line extending onto nape only; scales on top of head usually extend forward to level of the rear margin of pupil .

Metallic blue on back, silvery below; membrane at front of roof of mouth transparent or grey; a small black blotch on upper margin of gill cover; caudal fin translucent to dusky.

Size: attains 35 cm.

Habitat: pelagic in coastal and oceanic waters.

Depth: 12-170 m.

Widely distributed in the tropical Indo-Pacific from East Africa to the Americas; southern Baja to Chile; the Galapagos.   


Creative Commons Attribution Non Commercial 3.0 (CC BY-NC 3.0)

© Shorefishes of the tropical eastern Pacific online information system.

Source: Shorefishes of the Tropical Eastern Pacific Online Information System

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