Descrizione originale come Crenicichla stocki:
ZooBank:B35CDA31-47E1-449C-849D-3F861C89E68D.
- Ploeg, Alex. 1991. "Revision of the South American cichlid genus Crenicichla Heckel, 1840, with description of fifteen new species and consideration on species groups, phylogeny and biogeography (Pisces, Perciformes, Cichlidae)". Univ. Amsterdam, Netherlands. 1-153 (crc01043)
Conservazione: Crenicichla stocki è valutata dalle organizzazioni internazionali di salvaguardia delle specie a rischio come (DD) Mancanza di dati (2018). There are several hydroelectric dams built along the Tocantins River which may have negatively affected the population (ICMBio, 2022).