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

Genera in the family or subfamily Stethaprioninae: [ 8 ] records

Brachychalcinus Boulenger [G. A.] 1892:11 Masc. Brachychalcinus retrospina Boulenger 1892. Type by monotypy. •Valid as Brachychalcinus Boulenger 1892 -- (Géry 1977:367 [ref. 1597], Reis 1989:58 [ref. 14219], Britski et al. 1999:56 [ref. 24147], Reis in Reis et al. 2003:209 [ref. 27061], Mirande 2009:7 [ref. 30267] in Characidae, Stethaprioninae, Mirande 2010:500 [ref. 31006] in Characidae, Tetragonopterinae, Sarmiento et al. 2014:184 [ref. 35004], Garcia-Ayala et al. 2017:564 [ref. 35695], Garcia-Ayala & Benine 2020:1 [ref. 37401], Garcia-Ayala et al. 2024:1 [ref. 40855], Melo et al. 2024:22 [ref. 41541] in Stethaprioninae). Current status: Valid as Brachychalcinus Boulenger 1892. Acestrorhamphidae: Stethaprioninae.

Buritia Brant [V.] 1974:148 Fem. Buritia cisalpinoi Brant 1974. Type by original designation (also monotypic). Objectively invalid; preoccupied by Buritia Young 1952 in Hemiptera (see Whitley 1976:47 [ref. 4735]); replaced by and objective synonym of Orthospinus Reis 1989. •Synonym of Orthospinus Reis 1989 -- (Reis in Reis et al. 2003:209 [ref. 27061]). 1°Homonym. Current status: Synonym of Orthospinus Reis 1989. Acestrorhamphidae: Stethaprioninae.

Ectrepopterus (subgenus of Megalamphodus) Fowler [H. W.] 1943:313 Masc. Megalamphodus uruguayensis Fowler 1943. Type by original designation (also monotypic). •Synonym of Megalamphodus Eigenmann 1915 -- (Taphorn 1992:251 [ref. 23654]). •Synonym of Hyphessobrycon Durbin 1908 -- (see Malabarba 1998:231 [ref. 23844], Lima & Malabarba in Reis et al. 2003:134 [ref. 27061]). •Valid as Ectrepopterus Fowler 1943 -- (Malabarba et al. 2012:47, 49 [ref. 31810], Melo et al. 2024:22 [ref. 41541] in Stethaprioninae). Current status: Valid as Ectrepopterus Fowler 1943. Acestrorhamphidae: Stethaprioninae.

Ephippicharax Fowler [H. W.] 1913:51 Masc. Tetragonopterus compressus Günther 1864. Type by being a replacement name. Replacement for Fowlerina Eigenmann 1908, preoccupied by Fowlerina Pelseneer 1906 in Mollusca. •Synonym of Poptella Eigenmann 1908 -- (Géry 1977:367 [ref. 1597], Reis 1989:18 [ref. 14219], Taphorn 1992:302 [ref. 23654], Reis in Reis et al. 2003:210 [ref. 27061]). Current status: Synonym of Poptella Eigenmann 1908. Acestrorhamphidae: Stethaprioninae.

Fowlerina Eigenmann [C. H.] 1907:771 Fem. Tetragonopterus compressus Günther 1864. Type by monotypy. Probably appeared first in Eigenmann, McAtee & Ward 1907:153 [ref. 1261] with 2 included species. Objectively invalid; preoccupied by Fowlerina Pelseneer 1906 in Mollusca, replaced by Ephippicharax Fowler 1913. •In the synonymy of Poptella Eigenmann 1908 -- (Reis 1989:18 [ref. 14219], Taphorn 1992:302 [ref. 23654], Reis in Reis et al. 2003:210 [ref. 27061]). 1°Homonym. Current status: Synonym of Poptella Eigenmann 1908. Acestrorhamphidae: Stethaprioninae.

Orthospinus Reis [R. E.] 1989:42 Masc. Buritia cisalpinoi Brant 1974. Type by being a replacement name. Replacement for Buritia Brant 1974, preoccupied by Buritia Young 1951 in Hemiptera. •Valid as Orthospinus Reis 1989 -- (Reis in Reis et al. 2003:209-210 [ref. 27061], Mirande 2009:7 [ref. 30267] in Characidae, Stethaprioninae, Mirande 2010:500 [ref. 31006] in Characidae, Tetragonopterinae, Oliveira et al. 2011:13 [ref. 31685] in Stethaprioninae, Melo et al. 2024:22 [ref. 41541] in Stethaprioninae). Current status: Valid as Orthospinus Reis 1989. Acestrorhamphidae: Stethaprioninae.

Poptella Eigenmann [C. H.] 1908:106 Fem. Tetragonopterus longipinnis Popta 1901. Type by original designation (also monotypic). •Valid as Poptella Eigenmann 1908 -- (Géry 1977:367 [ref. 1597], Reis 1989:18 [ref. 14219], Taphorn 1992:302 [ref. 23654], Britski et al. 1999:56 [ref. 24147], Reis in Reis et al. 2003:210 [ref. 27061], Mirande 2009:7 [ref. 30267] in Characidae, Stethaprioninae, Mirande 2010:500 [ref. 31006] in Characidae, Tetragonopterinae, Oliveira et al. 2011:13 [ref. 31685] in Stethaprioninae, Garcia-Ayala & Benine 2019:1 [ref. 36770], Garcia-Ayala & Benine 2021:1 [ref. 38089], Garcia-Ayala & Benine 2023:1 [ref. 40179], Melo et al. 2024:22 [ref. 41541] in Stethaprioninae, Garcia-Ayala et al. 2025:1 [ref. 42420]). Current status: Valid as Poptella Eigenmann 1908. Acestrorhamphidae: Stethaprioninae.

Stethaprion Cope [E. D.] 1870:562 Neut. Stethaprion erythrops Cope 1870. Type by monotypy. The gender of the genus is treated by Cope 1872 [ref. 921] as neuter. •Valid as Stethaprion Cope 1870 -- (Géry 1977:370 [ref. 1597], Reis 1989:47 [ref. 14219], Reis in Reis et al. 2003:210 [ref. 27061], Mirande 2009:7 [ref. 30267] in Characidae, Stethaprioninae, Mirande 2010:500 [ref. 31006] in Characidae, Tetragonopterinae, Oliveira et al. 2011:13 [ref. 31685] in Stethaprioninae, Melo et al. 2024:22 [ref. 41541] in Stethaprioninae). Current status: Valid as Stethaprion Cope 1870. Acestrorhamphidae: Stethaprioninae.