bairdii, Tetragonopterus Steindachner [F.] 1882:179 [Anzeiger der Kaiserlichen Akademie der Wissenschaften in Wien, Mathematisch-Naturwissenschaftlichen Klasse v. 19 (no. 19); ref. 20487] Tabatinga, Amazonas, Brazil. Syntypes: NMW 57250 (3). Species later described in more detail in Steindachner 1882:35 [ref. 14353]. •Synonym of Phenacogaster pectinata (Cope 1870) -- (Lucena & Menezes in Reis et al. 2003:204 [ref. 27061] as pectinatus, Lucena 2024:252 [ref. 40817]). Current status: Synonym of Phenacogaster pectinata (Cope 1870). Characidae: Characinae. Habitat: freshwater.