Type locality: Laguna Piranha at right side of lower Rio Manapiare (Rio Ventuari drainage), approx. 3 km downstream from the town of San Juan de Manapiare, Estado Amazonas, Venezuela, (approx. 5° 16′ N, 65° 5′ W).
Etymology: a combination of the Latin words liberi (= children), and ferre (= to carry). It refers to the oral incubation, a reproductive behaviour, which is apparently unique in the genus.