Identity and locality
Ancistrus saudades de Souza et al., 2019
Headwaters of Río Ventuari, Caura and Caroní, Venezuela
Diagnostic evidence and naming
Original 2019 revision relates its wild distribution to Proto-Berbice river-capture history and documents about 7% mtDNA Cytb divergence from A. leucostictus across the Rupununi Portal. Gene divergence is species-history evidence, NOT a measured aquarium pedigree. The 2019 revision and specialist catalog record A. saudades from the Takutu/Branco system and other upper Guiana Shield drainages; captivity founder ancestry needs separate evidence.
Breeding and genetics limitations
Do not assert mitochondrial divergence independently proves mating incompatibility or a stable breedable color line.
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.