Identity and locality
Baryancistrus isaaci Oliveira & Rapp Py-Daniel, 2025
Rio Trombetas, Pará, Brazil
Diagnostic evidence and naming
The 2025 original paper directly maps historical L274 to this distinct species. Distant large yellow dots often larger than pupil, an at least partly plated belly and absence of a yellow distal fin band distinguish it from related Baryancistrus. An independent species catalog identifies the 2025 taxon Baryancistrus isaaci as the fish historically labelled L274 from Rio Trombetas near Caxipacore, and does not establish any captive breeding report or founder line.
Breeding and genetics limitations
Published collection dates 1985 onward are not captive breeding dates. No founder or genetic line can be inferred.
Original references
Links are research leads; they do not certify every statement. Check original taxonomy and date.
Public Discord research discussion
Follow the original forum topic. It is a discussion record, not independent scientific verification.