lemniscatus, Tetragonopterus Benine [R. C.], Pelição [G. Z.] & Vari [R. P.] 2004:340, Fig. 1 [Proceedings of the Biological Society of Washington v. 117 (no. 3); ref. 27973] Tributary to Sisa Creek, north side of stream about 700 meters downstream of crossing of road from Amotopo to Camp Geologie, about 3°42'N, 57°42'W, Nickeri District, Suriname. Holotype: USNM 225366. Paratypes: LIRP 4928 (2 c&s), 4929 (1); NZCS F7062 [ex USNM 225320] (1); USNM 224367 (2), 225523 (2), 374750 (4). •Synonym of Tetragonopterus rarus (Zarske, Géry & Isbrücker 2004) -- (Melo et al. 2011:49 [ref. 31233], Silva et al. 2016:23 [ref. 34929], Melo et al. 2024:281 [ref. 40817]). Current status: Synonym of Tetragonopterus rarus (Zarske, Géry & Isbrücker 2004). Characidae: Tetragonopterinae. Habitat: freshwater.