Please look in Eschmeyer's Catalog of Fishes for authorships of sections, Families of Fishes (all), and related information.

Species related to Ancistrus malacops: [ 3 ] records

lineolatus, Ancistrus Fowler [H. W.] 1943:255, Figs. 44-47 [Proceedings of the Academy of Natural Sciences of Philadelphia v. 95; ref. 1443] Río Orteguasa, Florencia, Caquetá, Colombia. Holotype (unique): ANSP 70517. Type catalog: Böhlke 1984:123 [ref. 13621], Ferraris 2007:222 [ref. 29155]. •Valid as Ancistrus lineolatus Fowler 1943 -- (Isbrücker 1980:69 [ref. 2303], Burgess 1989:437 [ref. 12860], Knaack 1999:152 [ref. 23874], Isbrücker 2001:25 [ref. 25653], Isbrücker 2002:12 [ref. 27178], Fisch-Muller in Reis et al. 2003:376 [ref. 27061], Fisch-Muller et al. 2005:570 [ref. 28242], Ferraris 2007:222 [ref. 29155], DoNascimiento et al. 2017:83 [ref. 35633]). •Synonym of Ancistrus malacops (Cope 1872) -- (Provenzano & Barriga-Salazar 2018:227 [ref. 36344]). Current status: Synonym of Ancistrus malacops (Cope 1872). Loricariidae: Hypostominae. Habitat: freshwater.

malacops, Chaetostomus Cope [E. D.] 1872:287, Pl. 5 (figs. 2a-b) [Proceedings of the Academy of Natural Sciences of Philadelphia v. 23; ref. 921] Río Ambyiacu, Peru. Syntypes: ANSP 8299 (2, disintegrated). Type catalog: Böhlke 1984:123 [ref. 13621], Ferraris 2007:222 [ref. 29155]. Original genus is correctly Chaetostoma. •Valid as Ancistrus malacops (Cope 1872) -- (Isbrücker 1980:70 [ref. 2303], Ortega & Vari 1986:16 [ref. 9708], Burgess 1989:437 [ref. 12860], Isbrücker 2001:25, 26 [ref. 25653], Isbrücker 2002:12 [ref. 27178], Fisch-Muller in Reis et al. 2003:377 [ref. 27061], Ferraris 2007:222 [ref. 29155], Barriga Salazar 2014:113 [ref. 35745], Provenzano & Barriga-Salazar 2018:227 [ref. 36344], de Souza et al. 2019:61 [ref. 36504], Bifi et al. 2019:8 [ref. 36821], Meza-Vargas et al. 2021:25 [ref. 39298], Valdiviezo-Rivera et al. 2026:12 [ref. 42854]). Current status: Valid as Ancistrus malacops (Cope 1872). Loricariidae: Hypostominae. Distribution: South America: upper Amazon River basin (Brazil, Colombia, Ecuador and Peru). Habitat: freshwater.

occidentalis, Xenocara Regan [C. T.] 1904:257, Pl. 14 (fig. 5) [Transactions of the Zoological Society of London v. 17 (pt 3, no. 1); ref. 3621] Canelos, eastern Ecuador. Syntypes: (7) BMNH 1880.12.8.69-74 (6). Type catalog: Ferraris 2007:223 [ref. 29155]. •Valid as Ancistrus occidentalis (Regan 1904) -- (Ovchynnyk 1967:39 [ref. 37559], Isbrücker 1980:71 [ref. 2303], Burgess 1989:437 [ref. 12860], Isbrücker 2001:25, 32 [ref. 25653], Isbrücker 2002:12 [ref. 27178], Fisch-Muller in Reis et al. 2003:377 [ref. 27061], Ferraris 2007:223 [ref. 29155], Barriga Salazar 2014:113 [ref. 35745]). •Synonym of Ancistrus malacops (Cope 1872) -- (Provenzano & Barriga-Salazar 2018:227 [ref. 36344]). Current status: Synonym of Ancistrus malacops (Cope 1872). Loricariidae: Hypostominae. Habitat: freshwater.