Fig. 1. (A) Ventral view of a needlefish swimming at 1.0 L s^-1 (where L is the total body length), with subsequent digitized outlines (below) based on 40 digitized points and midline reconstructions from a customized splinefitting program. Scale bar, 2 cm. (B) Lateral tracing of a needlefish. Point 1 corresponds to the tip of the jaw, point 2 corresponds to the edge of the operculum, and point 7 corresponds to the tip of the ventral lobe of the tail. Note that a point 80% down the body corresponds to the tip of the dorsal and anal fins.

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