Species that contain: Peckoltichthys and bachi [ 4 ] records

arenarius, Hemiancistrus Eigenmann [C. H.] & Allen [W. R.] 1942:185, Pl. 6 (fig. 2) [Fishes of western South America; ref. 1246] Yurimaguas, Peru. Holotype: CAS 77323 [ex IU 15356]. Paratypes: CAS 77324-26 [ex IU 15356-58] (1, 1, 1). Type catalog: Ferraris 2007:284 [ref. 29155]. See Fisch-Muller in Reis et al. 2003:392 [ref. 27061] fro more detailied type locality information. •Valid as Sophiancistrus arenarius (Eigenmann & Allen 1942) -- (Isbrücker et al. 2001:22 [ref. 25649], Isbrücker 2001:27, 32 [ref. 25653], Isbrücker 2002:29 [ref. 27178]). •Valid as Peckoltia arenaria (Eigenmann & Allen 1942) -- (Isbrücker 1980:55 [ref. 2303], Ortega & Vari 1986:17 [ref. 9708], Burgess 1989:434 [ref. 12860], Fisch-Muller in Reis et al. 2003:392 [ref. 27061], Armbruster & Werneke 2005:12 [ref. 28101], Ferraris 2007:284 [ref. 29155]). •Synonym of Peckoltia bachi (Boulenger 1898) -- (Armbruster 2008:7 [ref. 29740]). •Synonym of Peckoltichthys bachi (Boulenger 1898) -- (Armbruster 2015:99 [ref. 33670]). Current status: Synonym of Peckoltichthys bachi (Boulenger 1898). Loricariidae: Hypostominae. Habitat: freshwater.

bachi, Chaetostomus Boulenger [G. A.] 1898:425, Pl. 41 (fig. 1) [Transactions of the Zoological Society of London v. 14 (pt 7, no. 2); ref. 543] Rio Juruá, Brazil. Holotype (unique): BMNH 1897.12.1.61. Type catalog: Ferraris 2007:284 [ref. 29155]. Original genus is correctly Chaetostoma. •Valid as Peckoltia bachi (Boulenger 1898) -- (Isbrücker 1980:55 [ref. 2303], Burgess 1989:434 [ref. 12860], Isbrücker 2001:26, 31 [ref. 25653], Isbrücker 2002:25 [ref. 27178], Fisch-Muller in Reis et al. 2003:392 [ref. 27061], Armbruster & Werneke 2005:12 [ref. 28101], Ferraris 2007:284 [ref. 29155], Armbruster 2008:7 [ref. 29740], Zawadzki et al. 2010:724 [ref. 31074], de Oliveira et al. 2010:55 [ref. 30929], Fisch-Muller et al. 2012:189 [ref. 31970], de Oliveira et al. 2012:548 [ref. 32202], Barriga Salazar 2014:113 [ref. 35745], Sarmiento et al. 2014:191 [ref. 35004]). •Valid as Peckoltichthys bachi (Boulenger 1898) -- (Armbruster et al. 2015:99 [ref. 33670], DoNascimiento et al. 2017:81 [ref. 35633], Meza-Vargas et al. 2021:26 [ref. 39298]). Current status: Valid as Peckoltichthys bachi (Boulenger 1898). Loricariidae: Hypostominae. Distribution: South America: upper Amazon River and its tributaries (Brazil, Bolivia, Colombia, Ecuador and Peru). Habitat: freshwater.

filicaudatus, Peckoltichthys Miranda Ribeiro [A. de] 1917:49 [Revista da Sociedade Brasileira de Sciências (Rio de Janeiro) v. 1; ref. 5742] Solimões River, upper Amazon River basin, Brazil. Holotype (unique): MNRJ 969. Type catalog: Miranda Ribeiro 1955:401 [ref. 12732], Ferraris 2007:284 [ref. 29155]. •Valid as Peckoltia filicaudatus (Miranda Ribeiro 1917) -- (Isbrücker 1980:55 [ref. 2303], Burgess 1989:435 [ref. 12860]). •Valid as Peckoltia filicauda (Miranda Ribeiro 1917) -- (Isbrücker 2001:31 [ref. 25653], Isbrücker 2002:25 [ref. 27178], Fisch-Muller in Reis et al. 2003:392 [ref. 27061], Armbruster & Werneke 2005:12 [ref. 28101], Ferraris 2007:284 [ref. 29155]). •Synonym of Peckoltia bachi (Boulenger 1898) -- (Armbruster 2008:7 [ref. 29740]). •Synonym of Peckoltichthys bachi Boulenger 1898 -- (Armbruster et al. 2015:100 [ref. 33670]). Current status: Synonym of Peckoltichthys bachi (Boulenger 1898). Loricariidae: Hypostominae. Distribution: Solimões River basin, Brazil [if valid]. Habitat: freshwater.

ucayalensis, Hemiancistrus Fowler [H. W.] 1940:235, Figs. 24-25 [Proceedings of the Academy of Natural Sciences of Philadelphia v. 91 (for 1939); ref. 1432] Contamana, Río Ucayali, Peru, 7°19'S, 75°04'W. Holotype: ANSP 68651. Paratypes: ANSP 68652-53 (2). Type catalog: Böhlke 1984:125 [ref. 13621], Ferraris 2007:285 [ref. 29155]. •Valid as Sophiancistrus ucayalensis (Fowler 1940) -- (Isbrücker et al. 2001:21 [ref. 25649], Isbrücker 2001:27, 32 [ref. 25653], Isbrücker 2002:29 [ref. 27178]). •Valid as Peckoltia ucayalensis (Fowler 1940) -- (Isbrücker 1980:57 [ref. 2303], Ortega & Vari 1986:17 [ref. 9708], Burgess 1989:435 [ref. 12860], Fisch-Muller in Reis et al. 2003:393 [ref. 27061], Armbruster & Werneke 2005:12 [ref. 28101], Ferraris 2007:285 [ref. 29155]). •Synonym of Peckoltia bachi (Boulenger 1898) -- (Armbruster 2008:7 [ref. 29740]). •Synonym of Peckoltichthys bachi (Boulenger 1898) -- (Armbruster et al. 2015:100 [ref. 33670]). Current status: Synonym of Peckoltichthys bachi (Boulenger 1898). Loricariidae: Hypostominae. Habitat: freshwater.