Carvalho, F. R. and Santos, A. C. (2015) “Taxonomic status of Tetragonopterus anomalus Steindachner, 1891, an inquirenda species in Characidae (Teleostei: Characiformes)”, Zootaxa. Auckland, New Zealand, 4018(1), pp. 146–150. doi: 10.11646/zootaxa.4018.1.9.