mullerae, Ancistrus Bifi [A. G.], Pavanelli [C. S.] & Zawadzki [C. H.] 2009:50, Fig.5 [Zootaxa No. 2275; ref. 30541] Três Barras do Paraná, lower Rio Iguaçu basin, affluent of Rio Iguaçu, Rio Guarani, 25°25'29"S, 53°07'30"W, Paraná State, Brazil. Holotype: MZUSP 104121. Paratypes: At MCP, MHNCI, MZUSP, NUP. Type catalog: Oliveira et al. 2022:18 [ref. 39255]. •Valid as Ancistrus mullerae Bifi, Pavanelli & Zawadzki 2009 -- (de Oliveira et al. 2015:81 [ref. 33869], Koerber et al. 2017:6 [ref. 35083], Koerber et al. 2017:7 [ref. 35632], Koerber et al. 2019:8 [ref. 36736], Mirande & Koerber 2020:2 [ref. 37594], Reis et al. 2020:466 [ref. 38364]). Current status: Valid as Ancistrus mullerae Bifi, Pavanelli & Zawadzki 2009. Loricariidae: Hypostominae. Distribution: South America: Iguaçu River basin (Brazil and Argentina). Habitat: freshwater.