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

Species in the genus Microschemobrycon: [ 9 ] records

callops, Microschemobrycon Böhlke [J. E.] 1953:846, Pl. 20 (fig. 2) [Annals and Magazine of Natural History (Series 12) v. 6 (no. 71) (art. 85); ref. 12366] Camanaos Rapids, Rio Negro, Brazil, about 0°10'S, 66°55'W. Holotype: CAS-SU 17491. Paratypes: ANSP 131519 [ex CAS-SU 17492] (1, c&s); CAS 20691 (2); CAS-SU 17492 (orig. 2), 17493-96 (1, 5, 1, 2). Type catalog: Böhlke 1984:44 [ref. 13621]. •Valid as Microschemobrycon callops Böhlke 1953 -- (Malabarba in Reis et al. 2003:145 [ref. 27061], DoNascimiento et al. 2017:53 [ref. 35633], Taphorn et al. 2022:17 [ref. 41297], Urbano-Bonilla et al. 2024:137 [ref. 42338], Marinho 2024:219 [ref. 40817]). Current status: Valid as Microschemobrycon callops Böhlke 1953. Characidae: Characinae. Distribution: South America: Orinoco, Negro and Madeira River basins (Brazil, Colombia, Guyana and Venezuela). Habitat: freshwater.

casiquiare, Microschemobrycon Böhlke [J. E.] 1953:843, Pl. 20 (fig. 1) [Annals and Magazine of Natural History (Series 12) v. 6 (no. 71) (art. 85); ref. 12366] São Gabriel Rapids, at São Gabriel village, Rio Negro, Brazil, 0°08'03"S, 67°03'28"W. Holotype: CAS-SU 17497. Paratypes: ANSP 131517-18 (2, c&s), 131520 (1, skeleton); CAS 20689-90 (10, 5); CAS-SU 17498-512 (8, 3, 11, 2, 1, 1, 11, 2, 1, 8, 4, 6, 1, 27, 2), Type catalog: Böhlke 1984:44 [ref. 13621]. •Valid as Microschemobrycon casiquiare Böhlke 1953 -- (Taphorn 1992:263 [ref. 23654], Malabarba in Reis et al. 2003:145 [ref. 27061], Mirande 2010:529 [ref. 31006], DoNascimiento et al. 2017:53 [ref. 35633], Urbano-Bonilla et al. 2018:86 [ref. 35773], Ohara et al. 2019:333 [ref. 36615], Taphorn et al. 2022:17 [ref. 41297], Urbano-Bonilla et al. 2024:137 [ref. 42338], Marinho 2024:219 [ref. 40817], Yunoki et al. 2025:329 [ref. 42013]). Current status: Valid as Microschemobrycon casiquiare Böhlke 1953. Characidae: Characinae. Distribution: South America: Amazon and Orinoco river basins (Bolivia, Brazil, Colombia, Guyana and Venezuela). Habitat: freshwater.

cryptogrammus, Microschemobrycon Ohara [W. M.], Jerep [F. C.] & Cavallaro [M. R.] 2019:327, Figs. 1-2 [Zootaxa 4576 (no. 2); ref. 36615] Igarapé tributary of Rio Curuá, Rio Xingu basin, 15 km north from Castelo dos Sonhos, Altamira, Pará State, Brazil, 8°10'25"S, 55°7'43"W. Holotype: MZUSP 123748. Paratypes: MNRJ, MZUSP. •Valid as Microschemobrycon cryptogrammus Ohara, Jerep & Cavallaro 2019. Current status: Valid as Microschemobrycon cryptogrammus Ohara, Jerep & Cavallaro 2019. Characidae: Characinae. Distribution: Upper Rio Curuá drainage, Rio Xingu basin, Pará State, Brazil. Habitat: freshwater.

elongatus, Microschemobrycon Géry [J.] 1973:97, Figs. 9-11 [Studies on the Neotropical Fauna v. 8; ref. 1596] Rio Suiazinho, Rio Xingu basin, Brazil, 12°49'S, 51°46'W. Holotype: BMNH 1972.11.15.1. Paratypes: BMNH 1972.11.15.2 (1), 1972.11.15.3-4 (2); Géry coll. 0680 (1). •Valid as Microschemobrycon elongatus Géry 1973 -- (Malabarba in Reis et al. 2003:145 [ref. 27061], Ohara et al. 2019:333 [ref. 36615], Marinho 2024:219 [ref. 40817]). Current status: Valid as Microschemobrycon elongatus Géry 1973. Characidae: Characinae. Distribution: South America: Xingu, Tapajós and Tocantins River basins, Brazil. Habitat: freshwater.

geisleri, Microschemobrycon Géry [J.] 1973:93, Figs. 7-8 [Studies on the Neotropical Fauna v. 8; ref. 1596] Igarapé, about 35 kilometers northwest from Obidos, Rio Curuçamba drainage, lower Amazon basin, Brazil. Holotype: MHNG 2229.09 [ex Géry coll. 0672]. Paratypes: (3). Type catalog: Weber 1998:8 [ref. 32707]. •Valid as Microschemobrycon geisleri Géry 1973 -- (Malabarba in Reis et al. 2003:145 [ref. 27061], Barriga Salazar 2014:107 [ref. 35745] as cf. geisleri, Sarmiento et al. 2014:185 [ref. 35004], DoNascimiento et al. 2017:53 [ref. 35633], Ohara et al. 2019:334 [ref. 36615], Meza-Vargas et al. 2021:19 [ref. 39298], Taphorn et al. 2022:17 [ref. 41297], Marinho 2024:219 [ref. 40817]). Current status: Valid as Microschemobrycon geisleri Géry 1973. Characidae: Characinae. Distribution: South America: Madeira, Negro, Tapajós and lower Amazon River basins (Bolivia, Brazil, ?Ecuador, Colombia, Guyana and Peru). Habitat: freshwater.

guaporensis, Microschemobrycon Eigenmann [C. H.] 1915:56, Pl. 8 (fig. 2) [Memoirs of the Carnegie Museum v. 7 (no. 1); ref. 1231] Rio Guaporé at Maciél, Amazon system, Brazil. Holotype (unique): FMNH 57926 [ex CM 6910a]. Type catalog: Henn 1928:59 [ref. 12305], Ibarra & Stewart 1987:57 [ref. 12367]. •Valid as Microschemobrycon guaporensis Eigenmann 1915 -- (Malabarba in Reis et al. 2003:145 [ref. 27061], Sarmiento et al. 2014:185 [ref. 35004], Ohara et al. 2019:334 [ref. 36615], Marinho 2024:219 [ref. 40817]). Current status: Valid as Microschemobrycon guaporensis Eigenmann 1915. Characidae: Characinae. Distribution: South America: Guaporé River drainage, Madeira River basin, Brazil and Bolivia. Habitat: freshwater.

melanotus, Aphyocharax Eigenmann [C. H.] 1912:312 [Memoirs of the Carnegie Museum v. 5 (no. 1); ref. 1227] Rockstone sand-bank, Guyana. Holotype (unique): FMNH 53578 [ex CM 1877]. Type catalog: Henn 1928:58 [ref. 12305], Ibarra & Stewart 1987:10 [ref. 12367]. •Valid, placement uncertain -- (Weitzman & Palmer 1997:238 [ref. 22743]). •Valid as Microschemobrycon melanotus (Eigenmann 1912) -- (Malabarba in Reis et al. 2003:145 [ref. 27061], DoNascimiento et al. 2017:53 [ref. 35633], Ohara et al. 2019:333 [ref. 36615], Meza-Vargas et al. 2021:19 [ref. 39298], Taphorn et al. 2022:17 [ref. 41297], Marinho 2024:220 [ref. 40817], Yunoki et al. 2025:329 [ref. 42013]). Current status: Valid as Microschemobrycon melanotus (Eigenmann 1912). Characidae: Characinae. Distribution: South America: Orinoco, Essequibo, Purus and Amazon River basins (Bolivia, Brazil, Colombia, Guyana and Peru). Habitat: freshwater.

meyburgi, Microschemobrycon Meinken [H.] 1975:217, Figs. 1-2 [Senckenbergiana Biologica v. 56 (nos 4/6); ref. 21936] Rio Xeriuini, Brazil. Holotype: SMF 12271. Paratypes: MZUSP 48131 [ex SMF 12272] (4), SMF 12272 (orig. 19, now 14). Type catalog: Oyakawa 1996:480 [ref. 23140]. •Valid as Microschemobrycon meyburgi Meinken 1975 -- (Malabarba in Reis et al. 2003:145 [ref. 27061], Ohara et al. 2019:333 [ref. 36615], Marinho 2024:220 [ref. 40817]). Current status: Valid as Microschemobrycon meyburgi Meinken 1975. Characidae: Characinae. Distribution: South America: Branco River drainage, Negro River basin, Brazil. Habitat: freshwater.

riddlei, Hemigrammus Meek [S. E.] in Eigenmann & Ogle 1907:13 [Proceedings of the United States National Museum v. 33 (no. 1556); ref. 1266] Los Castillas, Orinoco River, Venezuela. Syntypes: FMNH missing. Appeared in key but not in text or in list of new taxa on p. 2; footnote says, "Based on specimens collected by Dr. O. Riddle at Los Castillas, on the Orinoco, and now in the collections of the Field Museum of Natural History." On p. 12 it is stated that Hemigrammus contains 19 species, but the key contains 20. Apparently left in proofing. Types missing -- (Ibarra & Stewart 1987:45 [ref. 12367]). •Valid as Hyphessobrycon riddlei (Meek 1907) -- (Eigenmann 1912:340 [ref. 1227], Eigenmann 1918:189 [ref. 1240]). •Possibly a species of Microschemobrycon -- (F. Lima pers. comm. 03/21). •Species inquirenda -- (Lima & Marinho 2024:181 [ref. 40817]). Current status: Uncertain. Characidae: Characinae. Habitat: freshwater.