Identity and locality
Baryancistrus longipinnis (Kindle, 1895)
Rio Tocantins basin, Brazil
Diagnostic evidence and naming
Recognized named taxon with comparatively subtle light dots and a plated abdomen; the original Baryancistrus identification key differentiates from B. isaaci using dorsal-fin membrane length and number of intervening plates. Eschmeyer's Catalog of Fishes confirms that Kindle's available original Hemiancistrus longipinnis name was published in 1895 (the journal volume was marked for 1894); a prior 1893 mention was a nomen nudum. The current combination is Baryancistrus longipinnis, from Tocantins.
Breeding and genetics limitations
Keep natural wild species separate from lookalike Baryancistrus imports sold under ambiguous trade codes.
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.