Identity and locality
Panaqolus nix (Cramer & Rapp Py-Daniel, 2015)
Madeira, Mamoré, Madre de Dios, western Amazon
Diagnostic evidence and naming
Original 2015 description documents many small pale spots and strong naturally variable base pigment, from near-white/pale brown to almost black. Specimens changed darkness in captivity; this environmental plasticity is not independently inherited white/black morph strains. The independent specialist catalog identifies the 2015-described Panaqolus nix from the Madeira basin and associates historic L395. Natural pale-to-dark color plasticity described in the original taxonomic study is not evidence of fixed domestic morph alleles.
Breeding and genetics limitations
Do not invent an L-number code or market line founder where the original description does not give one.
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.