Blackstripe pirate perch (Aphredoderus ornatus), first described by Muller & Simons, 2024 is a small fish in the family Aphredoderidae (order Percopsiformes). Adults typically reach 8.80 cm in maximum length. It inhabits freshwater systems including rivers, streams, and lakes. It occurs in Temperate waters. It feeds on a mix of small fish and invertebrates as a mid-level predator.
Dorsal spines (total): 4; Dorsal soft rays (total): 10 - 12; Anal spines: 3; Anal soft rays: 6 - 7. This species is distinguished from its congeners by the following set of characters: ventrolateral stripe present, and all except A. sayanus by lower mean scale counts; lateral series 42 vs. 46-49, rows above lateral line 8 vs. 9-10, caudal peduncle rows 29 vs. 33-35, and four vs. three dorsal spines. From A. sayanus, this species has a narrower body (mean 30.5% SL vs. 33%). From A. retrodorsalis, this species further differs by having two defined caudal spots and a shorter postopercular length frequently 15% SL .Cross section: compressed.
Behavioural data for Blackstripe pirate perch is currently being reviewed.
Freshwater; benthopelagic. Temperate North America: USA.
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