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Numerous small scales; one dorsal fin plus one adipose fin; no spines in fins; back and tail lack distinct large black spots; first gill arch has 18-28 short, stout, smooth gill rakers; upper side of large individuals is steel-blue, with black speckles; sides silvery; silvery to white belly; tips of caudal, anal, and pectoral fins tinged black in males. Spawning males are dark olive to black on ...