esguiceroi, Utiaritichthys Pereira [T. N. A.] & Castro [R. M. C.] 2014:398, Figs. 1-2 [Neotropical Ichthyology v. 12 (no. 2); ref. 33385] Mato Grosso State, rio Tapajós drainage, rio Juruena, nearby the município de Sapezal, 12°51’29"S, 58°55’23"W, Brazil. Holotype: LIRP 8184. Paratypes: LIRP 8185 (11, 2 c&s), MCP 46331 (3), MZUSP 109232 (3). Plus non-type specimens. •Valid as Utiaritichthys esguiceroi Pereira & Castro 2014 -- (Ota et al. 2024:431 [ref. 40817]). Current status: Valid as Utiaritichthys esguiceroi Pereira & Castro 2014. Serrasalmidae: Myleinae. Distribution: South America: upper Rio Juruena drainage, Rio Tapajós basin, Brazil. Habitat: freshwater.