peliochelynion, Gymnogeophagus Turcati [A.], Serra-Alanis [W. S.] & Malabarba [L. R.] 2018:3, Figs. 1-5 [Neotropical Ichthyology v. 16 (no. 4): e180118; ref. 36363] Arroyo de las Tunas on Ruta 31, tributary to río Arapey Grande, Salto, Uruguay, 31°20'4.87"S, 57°19'36.42"W. Holotype: ZVC-P 12493. Paratypes: MHNM, UFRGS, ZVC. Plus additional non-type material. •Valid as Gymnogeophagus peliochelynion Turcati, Serra-Alanis & Malabarba 2018 -- (Alonso et al. 2019:S1 [ref. 36529], Koerber et al. 2020:8 [ref. 37480], Koerber et al. 2021:9 [ref. 38894], Koerber et al. 2023:9 [ref. 40355], Loureiro et al. 2023:154 [ref. 40506]). Current status: Valid as Gymnogeophagus peliochelynion Turcati, Serra-Alanis & Malabarba 2018. Cichlidae: Cichlinae. Distribution: South America: Río Arapey Grande drainage, lower Uruguay River basin (Uruguay). Habitat: freshwater.