dolichurus, Bunocephalus Delsman [H. C.] 1941:77, Fig. 12 [Mémoires du Musée royal d'histoire naturelle de Belgique (Ser. 2) No. 21; ref. 13171] Rio Trombetas, near Obidos, Amazon River basin, Brazil. Holotype (unique): IRSNB 359. Type catalog: Walschaerts 1987:17 [ref. 20755], Ferraris 2007:62 [ref. 29155]. •Valid as Petacara dolichura (Delsman 1941) -- (Ortega & Vari 1986:14 [ref. 9708], Mees 1988:91 [ref. 6401], Burgess 1989:304 [ref. 12860]). •Valid as Pterobunocephalus dolichurus (Delsman 1941) -- (Friel in Reis et al. 2003:265 [ref. 27061], Ferraris 2007:62 [ref. 29155], Meza-Vargas et al. 2021:24 [ref. 39298]). Current status: Valid as Pterobunocephalus dolichurus (Delsman 1941). Aspredinidae: Aspredininae. Distribution: South America: Amazon River basin (Brazil and Peru). Habitat: freshwater.