Yellowtail rriplefin (Enneanectes flavus) is a ray-finned fish of the family Tripterygiidae. It inhabits marine (saltwater) waters in reef-associated environments. This species can reach a maximum total length of 2.8 cm. It occurs at depths between 0 and 3 metres. With a trophic level of 2.8, it is an omnivore, consuming both plant and animal matter. It is assessed as Least Concern on the IUCN Red List.
Dorsal spines (total): 15; Dorsal soft rays (total): 7 - 8; Anal spines: 2; Anal soft rays: 16 - 17. The species is distinguished by having the following characters: unscaled-abdomen, 3 scale rows above posterior pored lateral line; a very short blunt snout, spiny preorbital flange; pored lateral-line scales mode of 14 or 15; broadly black-speckled second dorsal fin in adults, especially males (shared only with E. matador). Colour: mature adults with black spinous dorsal fins; yellowish rear body and tail, especially in mature males; melanophores extending from last body bar onto proximal third of caudal fin (unless obscured by bright yellow); interspace between third and fourth body bars half or less of interspace between fourth and fifth body bars, the last dark body bar usually extending onto the basal third of the caudal fin; three dark blotches along anal fin (except uniformly dusky in mature males); fresh and especially preserved specimens show two large black blotches on each side behind opercular flap, within a usually narrowly split first body bar . : elongated; Cross section: oval.
Behavioural data for Yellowtail rriplefin is currently being reviewed.
Marine; reef-associated; depth range 0 - 3 m . Tropical
No observations yet - be the first to log one!
View all observations for Yellowtail rriplefin ↗Spotted incorrect or outdated data? Submit a correction and our editorial team will review it. Approved edits go live within 48 hours.
Found a factual error, broken data, or inappropriate content? Let us know and we will investigate promptly.