Species that contain: Aequidens and tetramerus [ 4 ] records

stollei, Aequidens Miranda Ribeiro [A. de] 1918:13, Pl. 5 (3 figs. middle and bottom) [Historia Natural. Zoologia. Cichlidae Publ. 46 (Annexo 5); ref. 3720] Rio Jamary, Rio Madeira, Brazil. Lectotype: MNRJ 1592A. Paralectotypes: (2) MNRJ 1592 (1). Type catalog: Miranda Ribeiro 1955:397 [ref. 12732]. Lectotype selected by Miranda Ribeiro 1953:397 [ref. 12732] [but perhaps specimen not isolated]. •Synonym of Aequidens tetramerus (Heckel 1840) -- (Kullander 1986:339 [ref. 12439], Kullander & Nijssen 1989:134 [ref. 14136], Kullander in Reis et al. 2003:609 [ref. 27061]). Current status: Synonym of Aequidens tetramerus (Heckel 1840). Cichlidae: Cichlinae. Habitat: freshwater.

tetramerus, Acara Heckel [J. J.] 1840:341, Pl. 29 (figs. 1-4) [Annalen des Wiener Museums der Naturgeschichte v. 2; ref. 2064] Rio Branco, Brazil. Syntypes: NMW 33757-58 (1, 1). Type catalog: Kullander 1986:346 [ref. 12439]. •Valid as Aequidens tetramerus (Heckel 1840) -- (Ovchynnyk 1967:42 [ref. 37559], Ortega & Vari 1986:20 [ref. 9708], Kullander 1986:339 [ref. 12439], Kullander & Nijssen 1989:134 [ref. 14136], Keith et al. 2000:212 [ref. 24547], Lasso & Machado-Allison 2000:38 [ref. 27968], Kullander in Reis et al. 2003:609 [ref. 27061], Barriga Salazar 2014:117 [ref. 35745], Ramos et al. 2014:5 [ref. 35321], Sarmiento et al. 2014:122, 188 [ref. 35004], Hernández-Acevedo et al. 2015:105 [ref. 34438], Melo et al. 2016:135 [ref. 34701] as gr. tetramerus, DoNascimiento et al. 2017:99 [ref. 35633], Urbano-Bonilla et al. 2018:91 [ref. 35773], Brosse et al. 2019:134 [ref. 38320], Meza-Vargas et al. 2021:27 [ref. 39298], Borstein et al. 2022:18 [ref. 39507], Koerber et al. 2022:72 [ref. 39235], Vieira et al. 2023:18 [ref. 40759]). Current status: Valid as Aequidens tetramerus (Heckel 1840). Cichlidae: Cichlinae. Distribution: South America: Amazon River basin and Orinoco River basin (Bolivia, Brazil, Colombia, Ecuador, French Guiana, Guyana, Peru, Suriname and Venezuela). Habitat: freshwater.

trimaculata, Acaronia Allen [W. R.] in Eigenmann & Allen 1942:389, Pl. 22 (fig. 8) [Fishes of western South America; ref. 1246] Iquitos, Peru. Holotype: CAS 67009 [ex IU 17794]. Paratypes: CAS 67010 [ex IU 17794] (4, now 2), USNM 167768 (2). •Synonym of Aequidens tetramerus (Heckel 1840) -- (Kullander 1986:339 [ref. 12439], Kullander & Nijssen 1989:134 [ref. 14136], Kullander in Reis et al. 2003:609 [ref. 27061]). Current status: Synonym of Aequidens tetramerus (Heckel 1840). Cichlidae: Cichlinae. Habitat: freshwater.

uniocellata, Chromys Castelnau [F. L.] 1855:15, Pl. 6 (fig. 1) [Animaux nouveaux or rares v. 2; ref. 766] Río Ucayale, Mission de Sarayacu, Peru. Syntypes: MNHN A-9481 (2). Type catalog: Blanc 1962:206 [ref. 20868]. Spelled uniocellatus in list of figures. Original genus should have been Chromis. •Synonym of Aequidens tetramerus (Heckel 1840) -- (Kullander 1986: [ref. 12439], Kullander & Nijssen 1989:134 [ref. 14136], Kullander in Reis et al. 2003:609 [ref. 27061]). Current status: Synonym of Aequidens tetramerus (Heckel 1840). Cichlidae: Cichlinae. Habitat: freshwater.