Identity and locality
Pseudancistrus zawadzkii Silva, Roxo, Britzke & Oliveira, 2014
Rio Tapajós near Itaituba, Pará, Brazil
Diagnostic evidence and naming
Original ZooKeys 2014 holotype MZUSP 115056 and molecular phylogeny place this species in P. barbatus group, marked by enlarged snout odontodes and differentiated pale spots; compare Guiana Shield congeners. Pseudancistrus zawadzkii was described from the Rio Tapajos in 2014 and is cataloged as trade L321. Membership in the P. barbatus group does not make it a synonym of those species.
Breeding and genetics limitations
Scientists' proposed historical biogeographic routes are hypotheses, not captive origin lines or breeding crosses.
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.