tubicen, Aequidens Kullander [S. O.] & Ferreira [E. J. G.] 1991:427, Fig. 4 [Zoologica Scripta v. 19 (no. 4) [1990]; ref. 16013] Igarapé at kilometer 4 on the road to Perimetral Norte, Reserva Biológica de Trombetas, Pará State, Brazil. Holotype: MZUSP 15887. Paratypes: INPA 2201-05 (1, 5, 2, 12, 3); MZUSP 39086 (2); NRM 23969 [ex MZUSP 15887] (1), 23980 [ex INPA 2204] (5). More paratypes at MZUSP and NRM. •Valid as Aequidens tubicen Kullander & Ferreira 1991 -- (Kullander in Reis et al. 2003:609 [ref. 27061]). Current status: Valid as Aequidens tubicen Kullander & Ferreira 1991. Cichlidae: Cichlinae. Distribution: Trombetas River, Amazon River basin, Brazil. Habitat: freshwater.