Acestrorhynchus britskii
Acestrorhynchus britskii is a species of freshwater ray-finned fish belonging to the family Acestrorhynchidae, the freshwater barracudas. It was described by Naércio Aquino de Menezes in 1969. It inhabits the São Francisco river in Brazil. It reaches a maximum standard length of.
The fish is named in honor of ichthyologist Heraldo A. Britski with the Departamento de Zoologia, Secretaria de Agricultura, in São Paulo, Brazil, who collected the type specimen.