Shiner perch (Cymatogaster aggregata)

Biology

Dorsal spines (total): 8 - 11; Dorsal soft rays (total): 19-22; Anal spines: 3; Anal soft rays: 22 - 25; Vertebrae: 33 - 37. Distinguished by the rather deep, compressed body, the large scales, and the three spines in the anal fin. Lateral line slightly arched, complete. Generally silvery, with back dusky to greenish; middle of sides toward head are scales with groups of fine black dots on them, forming about eight longitudinal stripes; the stripes are often interrupted, especially in females, by three pale yellow, vertical bands; paired fins colorless; dorsal and caudal fins plain or dusky; anal fin usually colorless, sometimes with a yellow blotch toward the front. Breeding males may be almost solid black and develop fleshy lobes on both sides of anal fin.

Source: FishBase, licensed CC BY-NC 4.0.