longipinnis, Corydoras Knaack [J.] 2007:36, Figs. 1-28, 31-39 [Vertebrate Zoology v. 57 (no. 1); ref. 29221] Río Dulce, some 20 kilometers downstream from Termas de Río Hondo, Santiago del Estero Province, Argentina, about 27°29'29"S, 64°41'58"W. Holotype: AI 221. Paratypes: AI 222 (1); MTDF 30765 (1), 30766 (1); ZMA 123751 (1), 123752 (1); ZMB 33766 (1), 33767 (1). Plus 62 uncataloged specimens and 114 non-type specimens. See Koerber 2007:1 [ref. 29269] for correction of the type locality. See Tencatt et al. 2016:[10] [ref. 34388] for comments on the type material. •Valid as Corydoras longipinnis Knaack 2007 -- (Koerber 2007:1 [ref. 29269], Calviño & Alonso 2010:199 [ref. 30829], Koerber 2011:5 [ref. 31122], Tencatt et al. 2014:78 [ref. 33230], Tencatt et al. 2014:91 [ref. 33232], Koerber 2014:8 [ref. 33621], Mirande & Koerber 2015:40 [ref. 35117], Tencatt & Pavanelli 2015:294 [ref. 35434], Tencatt & Ohara 2016:[13] [ref. 34353], Tencatt & Evers 2016:[11] [ref. 34387], Tencatt et al. 2016:[17] [ref. 34388], Bertaco et al. 2016:416 [ref. 34561], Nión et al. 2016:31 [ref. 35565], Grant 2018:26 [ref. 36057], Koerber et al. 2020:5 [ref. 37480], Reis et al. 2020:464 [ref. 38364], Koerber et al. 2021:6 [ref. 38894], Giora & Wingert 2023:61 [ref. 41026], Koerber et al. 2023:6 [ref. 40355], Loureiro et al. 2023:94 [ref. 40506]). •Valid as Hoplisoma longipinne (Knaack 2007) -- (Dias et al. 2024:26 [ref. 41219] as longipinnis). Current status: Valid as Hoplisoma longipinne (Knaack 2007). Callichthyidae: Corydoradinae. Distribution: South America: Dulce River basin (Argentina), and lower rio Paraná (Brazil and Uruguay). Habitat: freshwater.