Overview information for Melanorivulus Bororo is currently being compiled by our editorial team.
Dorsal soft rays (total): 8 - 9; Anal soft rays: 12 - 13; Vertebrae: 30. Diagnosed from all other congeners of the subgenus Melanorivulus in possessing 2+1 mandibular neuromasts. Differs from all species of Melanorivulus, except Rivulus violaceus by its caudal peduncle in both sexes with dark purplish gray spots and humeral region in males with a bright greenish blue blotch. Can be separated from Rivulus violaceus by having fewer dorsal-fin rays 8-9 (vs. 10-11) and fewer anal-fin rays 11-13 (vs. 14-15). Additional characters helpful in the identification of this species include: scales in the longitudinal series 30-31; flank with close red dots, arranged in chevron-like series with the vertex on the mid-lateral line; and caudal fin in males with red bars .: elongated.
Behavioural data for Melanorivulus Bororo is currently being reviewed.
Diet information for Melanorivulus Bororo is currently being compiled.
Reproduction data for Melanorivulus Bororo is currently being compiled.
Freshwater; benthopelagic. Tropical South America: Santana River drainage, upper Paraguay River basin in Brazil.
No observations yet — be the first to log one!
View all observations for Melanorivulus Bororo ↗Spotted incorrect or outdated data?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.