Pacific royal flagfin (Aulopus chirichignoae) is a ray-finned fish of the family Aulopidae. It inhabits marine (saltwater) waters in benthic environments. This species can reach a maximum total length of 40 cm. It occurs at depths between 70 and 150 metres. With a trophic level of 4.1, it is a mid-level predator.
Adult males feature elongated filaments on dorsal rays 2-4, which are absent in females. The species has a small head length (29.4-31.4% SL), a narrow bony interorbital width (4.8-5.5% SL), 15 dorsal fin rays and 11 anal fin rays, with a total of 50-51 vertebrae.
Behavioural data for Pacific royal flagfin is currently being reviewed.
Marine; demersal; depth range 70 - 150 m . Tropical Southeast Pacific: Ecuador and Peru.
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