Please look in Eschmeyer's Catalog of Fishes for authorships of sections, Families of Fishes (all), and related information.

Species in the genus Microsternarchus: [ 5 ] records

bilineatus, Microsternarchus Fernández-Yépez [A.] 1968:[3], Pl. 2 (unnumb.) [Evencias No. 20; ref. 7318] Río San Bartolo, tributary of River Guariquito, southwest of Calabozo, Venezuela. Neotype: INHS 111262. Original types MACLPI 65252 (27, lost). Type catalog: Ferraris et al. 2017:[25] [ref. 35236]. On third unnumbered page. Neotype designated by Cox Fernandes & Williston 2017:105 [ref. 35647]. •Valid as Microsternarchus bilineatus Fernández-Yépez 1968 -- (Mago-Leccia 1994:52 [ref. 21320], Albert & Campos-da-Paz 1998:426 [ref. 23853], Albert & Crampton in Reis et al. 2003:495 [ref. 27061], de Santana & Crampton 2011:1155 [ref. 31643], Cox Fernandes et al. 2014:110 [ref. 33285], Cox Fernandes et al. 2015:213 [ref. 33927], Melo et al. 2016:134 [ref. 34701], Ferraris et al. 2017:[25] [ref. 35236], Cox Fernandes & Williston 2017:105 [ref. 35647], DoNascimiento et al. 2017:66 [ref. 35633], Ochoa et al. 2020:64 [ref. 37781], Meza-Vargas et al. 2021:21 [ref. 39298], Taphorn et al. 2022:40 [ref. 41297], Sousa et al. 2024:516 [ref. 41134], Pinilla et al. 2025:10 [ref. 41923]). Current status: Valid as Microsternarchus bilineatus Fernández-Yépez 1968. Hypopomidae. Distribution: South America: upper Orinoco River and Rio Negro basins (Guyana and Venezuela). Habitat: freshwater.

brevis, Microsternarchus Cox Fernandes [C.], Nogueira [A.], Williston [A.] & Alves-Gomes [J. A.] 2015:215, Figs. 1, 4, 5 [Proceedings of the Academy of Natural Sciences of Philadelphia v. 164 (no. 1); ref. 33927] Amazonas State, Santa Isabel do Rio Negro, Rio Negro, Igarapé Jaradi, Brazil, 00°19′05"S, 65°18′31"W. Holotype: INPA 48028. Paratypes: ANSP, INPA, MCZ. Plus non-type specimens. Type catalog: Ferraris et al. 2017:[25] [ref. 35236]. •Valid as Microsternarchus brevis Cox Fernandes, Nogueira, Williston & Alves-Gomes 2015 -- (Ferraris et al. 2017:[25] [ref. 35236], Ochoa et al. 2020:64 [ref. 37781], Sousa et al. 2024:516 [ref. 41134], Pinilla et al. 2025:10 [ref. 41923]). Current status: Valid as Microsternarchus brevis Cox Fernandes, Nogueira, Williston & Alves-Gomes 2015. Hypopomidae. Distribution: South America: middle Rio Negro drainage, Amazon basin, Amazonas State, Brazil. Habitat: freshwater.

javieri, Microsternarchus Pinilla [C. E.], Cox Fernandes [C.] & Alves-Gomes [J. A.] 2025:4, Figs. 2, 4-6 [Acta Amazonica v 55: e55bc24175; ref. 41923] Igarapé Aduiá, Negro River basin, 145 km upstream from the city of Novo Airão, Amazonas state, Brazil, 0°24'17.8"S, 63°18'51.6"W. Holotype: INPA-ICT 060886. Paratypes: ANSP, INPA. Plus additional non-type material. •Valid as Microsternarchus javieri Pinilla, Cox Fernandes & Alves-Gomes 2025. Current status: Valid as Microsternarchus javieri Pinilla, Cox Fernandes & Alves-Gomes 2025. Hypopomidae. Distribution: South America: Negro and Branco River basins, Amazonas and Roraima States, Brazil. Habitat: freshwater.

longicaudatus, Microsternarchus Sousa [T.], Wosiacki [W. B.], Muriel-Cunha [J.], Prudente [B. S.], Sousa [R. S.] & Peixoto [L. A. W.] 2024:509, Figs. 1-6 [Zootaxa 5448 (no. 4); ref. 41134] Igarapé da Ponte, tributary of Rio Amazonas, Juruti, Pará, Brazil, 02°10'48.0"S, 56°04'37.2"W. Holotype: MPEG 14690. Paratypes: MPEG, MZUSP. •Valid as Microsternarchus longicaudatus Sousa, Wosiacki, Muriel-Cunha, Prudente, Sousa & Peixoto 2024 -- (Cox Fernandes et al. 2024:246 [ref. 41670]). Current status: Valid as Microsternarchus longicaudatus Sousa, Wosiacki, Muriel-Cunha, Prudente, Sousa & Peixoto 2024. Hypopomidae. Distribution: South America: lower Amazon basin, Pará State, Brazil. Habitat: freshwater.

schonmanni, Microsternarchus Cox Fernandes [C.], Keeffe [R. M.] & Pinilla [C. E.] 2024:239, Figs. 2, 4-8 [Proceedings of the Academy of Natural Sciences of Philadelphia v. 168 (no. 1); ref. 41670] Guaporé River, Municipality Costa Marques, Rondônia State, Brazil, 12°26'42"S, 64°13'38"W. Holotype: INPA ICT 61074. Paratypes: INPA. •Valid as Microsternarchus schonmanni Cox Fernandes, Keeffe & Pinilla 2024. Current status: Valid as Microsternarchus schonmanni Cox Fernandes, Keeffe & Pinilla 2024. Hypopomidae. Distribution: South America: upper Mamoré-Guaporé River basin, Brazil. Habitat: freshwater.