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 Stygichthyinae: [ 7 ] records

Coptobrycon Géry [J.] 1966:226 Masc. Hasemania bilineata Ellis 1911. Type by original designation (also monotypic). •Valid as Coptobrycon Géry 1966 -- (Géry 1977:402 [ref. 1597], Lima in Reis et al. 2003:121 [ref. 27061], Mirande 2009:7 [ref. 30267] in Characidae, Gymnocharacinae, Mirande 2010:521 [ref. 31006], Langeani & Serra 2010:728 [ref. 31075], Melo et al. 2024:17 [ref. 41541] in Stygichthyinae). Current status: Valid as Coptobrycon Géry 1966. Acestrorhamphidae: Stygichthyinae.

Deuterodon Eigenmann [C. H.] in Eigenmann, McAtee & Ward 1907:140 Masc. Deuterodon iguape Eigenmann 1907. Type by monotypy. •Valid as Deuterodon Eigenmann 1907 -- (Géry 1977:519 [ref. 1597], Géry et al. 1988:10 [ref. 6408], Lucena & Lucena 1992:126 [ref. 21970], Britski et al. 1999:36 [ref. 24147], Lucena & Lucena 2002:117 [ref. 26205], Lucena et al. in Reis et al. 2003:127 [ref. 27061], Mirande 2009:7 [ref. 30267] in Characidae, Hemigrammus clade, Mirande 2010:500 [ref. 31006] in Characidae, Tetragonopterinae, de Lucena & de Lucena 2013:598 [ref. 32570], Sarmiento et al. 2014:184 [ref. 35004], Bertaco et al. 2016:413 [ref. 34561], Silva et al. 2017:[1] [ref. 35234], Terán et al. 2020:7 [ref. 37440], Melo et al. 2024:17 [ref. 41541] in Stygichthyinae). Current status: Valid as Deuterodon Eigenmann 1907. Acestrorhamphidae: Stygichthyinae.

Distoechus Gomes [A. L.] 1947:12 Masc. Distoechus stigmaturus Gomes 1947. Type by original designation (also monotypic). •Synonym of Deuterodon Eigenmann 1907 -- (Böhlke 1952:793 [ref. 13618], Lucena & Lucena 1992:147 [ref. 21970], see Malabarba 1998:232 [ref. 23844], Lucena & Lucena 2002:124 [ref. 26205], Lucena et al. in Reis et al. 2003:127 [ref. 27061]). Current status: Synonym of Deuterodon Eigenmann 1907. Acestrorhamphidae: Stygichthyinae.

Joinvillea Steindachner [F.] 1908:29 [30] Fem. Joinvillea rosae Steindachner 1908. Type by monotypy. On p. 30 of separate. •Synonym of Deuterodon Eigenmann 1907 -- (Lucena & Lucena 2002:124 [ref. 26205], Lucena et al. in Reis et al. 2003:127 [ref. 27061]). Current status: Synonym of Deuterodon Eigenmann 1907. Acestrorhamphidae: Stygichthyinae.

Myxiops Zanata [A. M.] & Akama [A.] 2004:46 Masc. Myxiops aphos Zanata & Akama 2004. Type by original designation (also monotypic). •Valid as Myxiops Zanata & Akama 2004 -- (Mirande 2009:7 [ref. 30267] in Characidae, Hemigrammus clade with question, Mirande 2010:500 [ref. 31006] in Characidae, Tetragonopterinae with question, Melo et al. 2024:21 [ref. 41541] in Stygichthyinae). Current status: Valid as Myxiops Zanata & Akama 2004. Acestrorhamphidae: Stygichthyinae.

Probolodus Eigenmann [C. H.] 1911:164 Masc. Probolodus heterostomus Eigenmann 1911. Type by original designation (also monotypic). •Valid as Probolodus Eigenmann 1911 -- (Géry 1977:579 [ref. 1597], Malabarba 1998:230 [ref. 23844], Pavanelli in Reis et al. 2003:154 [ref. 27061], Mirande 2009:7 [ref. 30267] in Characidae, Hemigrammus clade, Mirande 2010:500 [ref. 31006] in Characidae, Tetragonopterinae, Santos & Castro 2014:405 [ref. 33386]). •Synonym of Deuterodon Eigenmann 1907 -- Current status: Synonym of Deuterodon Eigenmann 1907. Acestrorhamphidae: Stygichthyinae.

Stygichthys Brittan [M. R.] & Böhlke [J. E.] 1965:1 Masc. Stygichthys typhlops Brittan & Böhlke 1965. Type by original designation (also monotypic). •Valid as Stygichthys Brittan & Bhlke 1965 -- (Géry 1977:535 [ref. 1597], Lima in Reis et al. 2003:157 [ref. 27061], Proudlove 2006:56 [ref. 28992], Mirande 2009:11 [ref. 30267] as incertae sedis in Characidae, Moreira et al. 2010:1815 [ref. 30836], Mirande 2010:546 [ref. 31006], Melo et al. 2024:17 [ref. 41541] in Stygichthyinae). Current status: Valid as Stygichthys Brittan & Böhlke 1965. Acestrorhamphidae: Stygichthyinae.