Descrizione originale come Acara curviceps:
ZooBank:9B045D39-52E8-45EE-B5FB-C22C56122671.
- Ahl, Ernst. 1924. "Eine neue Cichlidenart aus dem Amazonestrom". Mitteilungen aus dem Zoologischen Museum in Berlin. 11(1):44-45 (crc00344)
Conservazione: Laetacara curviceps è valutata dalle organizzazioni internazionali di salvaguardia delle specie a rischio come (LC) basso rischio (2018). Laetacara curviceps is an species endemic of Brazil, where it is widely distributed, occurring in the lower portion of the Amazon River tributaries, where it is frequent and abundant. Despite being collected to be marketed as ornamental, no significant threats are detected to endanger its populations (ICMBio, 2022).