sambaibensis, Porotergus Mendonça [M. B.], Peixoto [L. A. W.], Chamon [C. C.], Akama [A.] & de Santana [C. D.] 2025:4, Figs. 3-6 [Journal of Fish Biology Early View; ref. 42248] Javaés River at pedral da Sambaíba, Pium, Tocantins, Brazil, 10°00'00.6"S, 50°01'28.3"W. Holotype: MPEG 39639. Paratypes: INPA, MPEG. MZUSP, UNT. •Valid as Porotergus sambaibensis Mendonça, Peixoto, Chamon, Akama & de Santana 2025. Current status: Valid as Porotergus sambaibensis Mendonça, Peixoto, Chamon, Akama & de Santana 2025. Apteronotidae: Apteronotinae. Distribution: South America: Javaés River drainage, Tocantins, Brazil. Habitat: freshwater.