Trigonectes Rubromarginatus (Trigonectes rubromarginatus) is a ray-finned fish of the family Rivulidae. It inhabits freshwater waters. This species can reach a maximum total length of 12 cm. With a trophic level of 3.4, it is a low-level carnivore, feeding on invertebrates and small organisms. It is assessed as Least Concern on the IUCN Red List.
Dorsal soft rays (total): 10 - 14; Anal soft rays: 16 - 18. Distinguished from other species of the genus, except T. strigabundus, by having straight mouth cleft. Differs from T. strigabundus and all other species of the genus by the elongated pelvic fin of the males, whose tip is reaching to the base of 11th to 15th anal rays and the presence of a bright red stripe along the ventral margin of the male caudal fin. Seems to differ from T. strigabundus by having a larger size .
Behavioural data for Trigonectes Rubromarginatus is currently being reviewed.
Diet information for Trigonectes Rubromarginatus is currently being compiled.
Reproduction data for Trigonectes Rubromarginatus is currently being compiled.
Freshwater; benthopelagic; non-migratory. Tropical; 23°C - 27°C South America: Araguaia River basin, Brazil.
No observations yet - be the first to log one!
View all observations for Trigonectes Rubromarginatus ↗Spotted incorrect or outdated data?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.