analis, Piabina Eigenmann [C. H.] in Eigenmann, Henn & Wilson 1914:8 [Indiana University Studies No. 19; ref. 1259] São Luis de Cáceres, upper Rio Paraguay, Brazil. Holotype (unique): FMNH 56661 [ex CM 5478]. Type catalog: Henn 1928:67 [ref. 12305], Ibarra & Stewart 1987:65 [ref. 12367]. •Valid as Piabarchus analis (Eigenmann 1914) -- (Britski et al. 1999:36 [ref. 24147], Lima in Reis et al. 2003:153-154 [ref. 27061], Thomaz et al. 2015:Add. 5 [ref. 33893], Koerber et al. 2017:34 [ref. 35267], Lima 2024:254 [ref. 40817]). Current status: Valid as Piabarchus analis (Eigenmann 1914). Stevardiidae: Diapominae. Distribution: South America: Paraguay River basin, Brazil and Paraguay. Habitat: freshwater.