annectens, Acanthopoma Lütken [C. F.] 1892:53, Figs. (p. 56) [Videnskabelige Meddelelser fra den Naturhistoriske Forening i Kjøbenhavn, Aaret 1891; ref. 2857] Río Huallaga, upper Amazon River system, Peru. Holotype: MTD F 5245. Type catalog: Zarske 2003:23 [ref. 27474], Ferraris 2007:403 [ref. 29155]. •Valid as Acanthopoma annectens Lütken 1892 -- (Ortega & Vari 1986:15 [ref. 9708], Burgess 1989:324 [ref. 12860], de Pinna & Wosiacki in Reis et al. 2003:272 [ref. 27061], Ferraris 2007:403 [ref. 29155], Barriga Salazar 2014:110 [ref. 35745] as Aconthopoma cf. annectens, Sarmiento et al. 2014:192 [ref. 35004], DoNascimiento 2015:939 [ref. 34078], Meza-Vargas et al. 2021:24 [ref. 39298]). Current status: Valid as Acanthopoma annectens Lütken 1892. Trichomycteridae: Stegophilinae. Distribution: South America: upper and middle Amazon River basin (Brazil, Ecuador, Bolivia and Peru). Habitat: freshwater.