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 Hypoptopomatinae: [ 39 ] records

Acestridium Haseman [J. D.] 1911:319 Neut. Acestridium discus Haseman 1911. Type by monotypy. •Valid as Acestridium Haseman 1911 -- (Isbrücker 1980:102 [ref. 2303], Burgess 1989:441 [ref. 12860], Schaefer 1996:925 [ref. 22565], Schaefer 1997:41 [ref. 23213], Schaefer & Provenzano 1998:224 [ref. 23317], Schaefer 1991:2 [ref. 18926], Schaefer 1998:377 [ref. 23692], de Pinna 1998:305 [ref. 23847], Retzer et al. 1999:315 [ref. 24231], Isbrücker 2002:11 [ref. 27178], Schaefer in Reis et al. 2003:321 [ref. 27061], Retzer 2005:1 [ref. 28228], Ferraris 2007:218 [ref. 29155], Rodriguez & Reis 2007:429 [ref. 29464], Carvalho et al. 2008:336 [ref. 29839], Reis & Lehmann A. 2009:446 [ref. 30379], Martins & Langeani 2011:66 [ref. 31235], Rodriguez et al. 2015:325, 335 [ref. 33908], Delapieve et al. 2018:21 [ref. 35713]). Current status: Valid as Acestridium Haseman 1911. Loricariidae: Hypoptopomatinae.

Aristommata Holmberg [E. L.] 1893:96 Fem. Aristommata inexspectata Holmberg 1893. Type by monotypy. Misspelled Aristomata by Eigenmann 1910:412 [ref. 1224]. •Valid as Aristommata Holmberg 1893 -- (Isbrücker 1980:87 [ref. 2303]). •Synonym of Hypoptopoma Günther 1868 -- (Schaefer 1991:2 [ref. 18926] as Arstommata, Aquino & Miquelarena 2001:2 [ref. 26083], Isbrücker 2002:13 [ref. 27178], Ferraris 2007:249 [ref. 29155], Aquino & Schaefer 2010:7 [ref. 30875], Delapieve et al. 2018:22 [ref. 35713]). Current status: Synonym of Hypoptopoma Günther 1868. Loricariidae: Hypoptopomatinae.

Chauliocheilos Martins [F. de O.], Andrade [B. N.], Rosa [A. C.] & Langeani [F.] 2014:194 Masc. Chauliocheilos saxatilis Martins, Andrade, Rosa & Langeani 2014. Type by original designation (also monotypic). •Valid as Chauliocheilos Martins, Andrade, Rosa & Langeani 2014. Current status: Valid as Chauliocheilos Martins, Andrade, Rosa & Langeani 2014. Loricariidae: Hypoptopomatinae.

Corumbataia Britski [H. A.] 1997:233 Fem. Corumbataia cuestae Britski 1997. Type by original designation. •Valid as Corumbataia Britski 1997 -- (Isbrücker 2002:15 [ref. 27178], Schaefer in Reis et al. 2003:322 [ref. 27061], Ferreira & Ribeiro 2007:59 [ref. 28908], Ferraris 2007:232 [ref. 29155], Carvalho 2008:552 [ref. 29798], Silva et al. 2018:317 [ref. 36151], Thimotheo et al. 2020:1 [ref. 38000]). Current status: Valid as Corumbataia Britski 1997. Loricariidae: Hypoptopomatinae.

Curculionichthys Roxo [F. F.], Silva [G. S. C.], Ochoa [L. E.] & Oliveira [C.] 2015:105 Masc. Hisonotus insperatus Britski & Garavello 2003. Type by original designation. •Valid as Curculionichthys Roxo, Silva, Ochoa & Oliveira 2015 -- (Silva et al. 2016:281 [ref. 34828], Roxo et al. 2017:258 [ref. 35655], Calegari et al. 2018:663 [ref. 36345], Gamarra et al. 2019:1 [ref. 36703], Morais et al. 2024:60 [ref. 40866]). Current status: Valid as Curculionichthys Roxo, Silva, Ochoa & Oliveira 2015. Loricariidae: Hypoptopomatinae.

Diapeltoplites (subgenus of Hypoptopoma) Fowler [H. W.] 1915:237 Masc. Hypoptopoma gulare Cope 1878. Type by original designation. Misspelled Diapaletoplites in Zoological Record for 1915 and in Jordan 1920:556 [ref. 4905]. •Synonym of Hypoptopoma Günther 1868 -- (Isbrücker 1980:87 [ref. 2303], Isbrücker 2002:15 [ref. 27178], Ferraris 2007:249 [ref. 29155], Aquino & Schaefer 2010:7 [ref. 30875], Delapieve et al. 2018:22 [ref. 35713]). Current status: Synonym of Hypoptopoma Günther 1868. Loricariidae: Hypoptopomatinae.

Epactionotus Reis [R. E.] & Schaefer [S. A.] 1998:4 Masc. Epactionotus bilineatus Reis & Schaefer 1998. Type by original designation. •Synonym of Hisonotus Eigenmann & Eigenmann 1889 -- (Roxo et al. 2019:161 [ref. 36538]). •Valid as Epactionotus Leis & Schaefer 1998 -- (Isbrücker 2002:15 [ref. 27178], Schaefer in Reis et al. 2003:322 [ref. 27061], Azpelicueta et al. 2004:89 [ref. 28029], Ferraris 2007:235 [ref. 29155],, Martins & Langeani 2011:66 [ref. 31235], Reis et al. 2012:10 [ref. 31863], Bertaco et al. 2016:417 [ref. 34561], Delapieve et al. 2020:[1] [ref. 37840]). Current status: Valid as Epactionotus Reis & Schaefer 1998. Loricariidae: Hypoptopomatinae.

Eurycheilichthys Reis [R. E.] & Schaefer [S. A.] 1993:894 Masc. Eurycheilus pantherinus Reis & Schaefer 1992. Type by being a replacement name. Replacement for Eurycheilus Reis & Schaefer 1992, preoccupied by Eurycheilus Septfontaine 1970 in fossil cephalopods. •Synonym of Hisonotus Eigenmann & Eigenmann 1889 -- (Roxo et al. 2019:161 [ref. 36538]). •Valid as Eurycheilichthys Reis & Schaefer 1993 -- (Burgess & Finley 1996:169 [ref. 22901], Schaefer 1997:41 [ref. 23213], Reis & Schaefer 1998:23 [ref. 23691], Schaefer 1998:377 [ref. 23692], Isbrücker 2002:15 [ref. 27178], Schaefer in Reis et al. 2003:322 [ref. 27061], Ferraris 2007:236 [ref. 29155], Carvalho et al. 2008:336 [ref. 29839], Reis et al. 2012:10 [ref. 31863], Azpelicueta & Koerber 2014:1210 [ref. 33620], Bertaco et al. 2016:417 [ref. 34561], Reis 2017:[4] [ref. 35226], Delapiewe et al. 2023:2 [ref. 40645]). Current status: Valid as Eurycheilichthys Reis & Schaefer 1993. Loricariidae: Hypoptopomatinae.

Eurycheilus Reis [R. E.] & Schaefer [S. A.] 1992:216 Masc. Eurycheilus pantherinus Reis & Schaefer 1992. Type by monotypy. Objectively invalid; preoccupied by Eurycheilus Septfontaine 1970 in fossil cephalopods, replaced by Eurycheilichthys Reis & Schaefer 1993. •In the synonymy of Eurycheilichthys Reis & Schaefer 1993 -- (Isbrücker 2002:15 [ref. 27178], Schaefer in Reis et al. 2003:322 [ref. 27061], Ferraris 2007:236 [ref. 29155], Reis 2017:[4] [ref. 35226]). 1°Homonym. Current status: Synonym of Eurycheilichthys Reis & Schaefer 1993. Loricariidae: Hypoptopomatinae.

Euryochus Pereira [E. H. L.] & Reis [R. E.] 2017:76 Masc. Euryochus thysanos Pereira & Reis 2017. Type by monotypy. •Valid as Euryochus Pereira & Reis 2017. Current status: Valid as Euryochus Pereira & Reis 2017. Loricariidae: Hypoptopomatinae.

Gymnotocinclus Carvalho [T. P.], Lehmann A. [P.] & Reis [R. E.] 2008:330 Masc. Gymnotocinclus anosteos Carvalho, Lehmann A. & Reis 2008. Type by original designation (also monotypic). •Valid as Gymnotocinclus Carvalho, Lehmann A. & Reis 2008 -- (Reis et al. 2012:10 [ref. 31863], Roxo et al. 2017:337 [ref. 35310]). •Synonym of Corumbataia Britski 1997 -- (Roxo et al. 2019:160 [ref. 36538]). Current status: Synonym of Corumbataia Britski 1997. Loricariidae: Hypoptopomatinae.

Hirtella Pereira [E. H. L.], Zanata [A. M.], Cetra [M.] & Reis [R. E.] 2014:673 Fem. Hirtella carinata Pereira, Zanata, Cetra & Reis 2014. Type by original designation (also monotypic). •Valid as Hirtella Pereira, Zanata, Cetra & Reis 2014 -- (Pereira & Reis 2017:71 [ref. 35307]). Current status: Valid as Hirtella Pereira, Zanata, Cetra & Reis 2014. Loricariidae: Hypoptopomatinae.

Hisonotus Eigenmann [C. H.] & Eigenmann [R. S.] 1889:40 Masc. Hisonotus notatus Eigenmann & Eigenmann 1889. Type by original designation (also monotypic). •Synonym of Otocinclus Cope 1871 -- (Isbrücker 1980:81 [ref. 2303]). •Synonym of Microlepidogaster Eigenmann & Eigenmann 1889 -- (Schaefer 1991:2 [ref. 18926], Schaefer 1997:8 [ref. 23213]). •Valid as Hisonotus Eigenmann & Eigenmann 1889 -- (Reis & Schaefer 1998:23 [ref. 23691], Schaefer 1998:377 [ref. 23692], Montoya-Burgos et al. 1998:367 [ref. 23850], Aquino et al. 2001:2 [ref. 25673], Isbrücker 2002:17 [ref. 27178], Britski & Garavello 2003:588 [ref. 27131], Schaefer in Reis et al. 2003:322 [ref. 27061], Almirón & Azpelicueta 2006:87 [ref. 28674], Azpelicueta & Almirón 2007:591 [ref. 29353], Britski & Garavello 2007:413 [ref. 29429], Cramer et al. 2007:56 [ref. 29959] and polyphyletic, Ferraris 2007:248 [ref. 29155], Carvalho et al. 2008:510 [ref. 29799], Carvalho & Reis 2009:1 [ref. 30193], Garvalho & Reis 2011:1 [ref. 31240], Carvalho & Datovo 2012:266 [ref. 32054], Martins & Langeani 2012:29 [ref. 32060], Roxo et al. 2013:319 [ref. 32527], Roxo et al. 2014:57 [ref. 33252], Lippert et al. 2014:242 [ref. 33355], Silva et al. 2014:107 [ref. 33533], Roxo et al. 2015:127 [ref. 33763], Roxo et al. 2015:104 [ref. 34024], Zawadzki et al. 2016:373 [ref. 34367], Roxo et al. 2016:227 [ref. 34426], Martins & Langeani 2016:1 [ref. 34533], Bertaco et al. 2016:418 [ref. 34561], Calegari et al. 2017:231 [ref. 35203], Roxo et al. 2018:[1] [ref. 35900], Dias et al. 2018:577 [ref. 36235], Roxo et al. 2019:161 [ref. 36538], Ribeiro-Silva et al. 2020:553 [ref. 37845]). Current status: Valid as Hisonotus Eigenmann & Eigenmann 1889. Loricariidae: Hypoptopomatinae.

Hypoptopoma Günther [A.] 1868:477 Neut. Hypoptopoma thoracatum Günther 1868. Type by monotypy. Also in Günther 1868:234 [ref. 5756]. Hypoptoma is a misspelling. •Valid as Hypoptopoma Günther 1868 -- (Isbrücker 1980:86 [ref. 2303], Burgess 1989:439 [ref. 12860], Schaefer 1996:925 [ref. 22565], Schaefer 1997:41 [ref. 23213], Schaefer 1991:2 [ref. 18926], Schaefer 1998:377 [ref. 23692], de Pinna 1998:305 [ref. 23847], Montoya-Burgos et al. 1998:367 [ref. 23850], Britski et al. 1999:133 [ref. 24147], Aquino & Miquelarena 2001:1 [ref. 26083], Isbrücker 2002:18 [ref. 27178], Aquino & Schaefer 2002:374 [ref. 26022], Britto & Moreira 2002:1067 [ref. 26512], Schaefer in Reis et al. 2003:323 [ref. 27061], Ferraris 2007:249 [ref. 29155], Aquino & Schaefer 2010:7 [ref. 30875], Delapieve et al. 2018:22 [ref. 35713]). Current status: Valid as Hypoptopoma Günther 1868. Loricariidae: Hypoptopomatinae.

Hypostomatinum Günther [A.] 1868:234 Neut. Hypoptopoma thoracatum Günther 1868. Type by monotypy. In the 1990 edition Eschmeyer & Bailey stated: "As Hypoptopoma in Günther (June) 1868 [ref. 1992]." Appeared above (Sept.) as "Hypoptopoma (g. n. Hypostomatinum); reason for name change not stated; can be considered as name published in synonymy and perhaps never made available. Objective synonym of Hypoptopoma Günther 1868." But this name should be deleted as "Hypostomatinum" was the larger group name into which Hypoptopoma new genus was placed and not a new genus. Should be disregarded; not made available from use by Eschmeyer & Bailey (where it was also misspelled) or in list by Isbrücker 1992 [ref. 20893]. Loricariidae: Hypoptopomatinae.

Isbrueckerichthys Derijst [E.] 1996:64 Masc. Hemipsilichthys duseni Miranda Ribeiro 1907. Type by original designation. •Valid as Isbrueckerichthys Derijst 1996 -- (Burgess & Finley 1996:169 [ref. 22901], Montoya-Burgos et al. 1998:367 [ref. 23850], Pereira & Reis 2002:141 [ref. 26071], Isbrücker 2002:20 [ref. 27178], Weber in Reis et al. 2003:364 [ref. 27061], Pereira & Oyakawa 2003:3 [ref. 27318], Ambruster 2004:57 [ref. 27644], Jerep et al. 2006:54 [ref. 28877], Ferraris 2007:262 [ref. 29155], Pereira et al. 2010:37 [ref. 30753], Roxo et al. 2012:1 [ref. 31839], Roxo et al. 2012:37 [ref. 32073], Pereira & Reis 2017:72 [ref. 35307], Almeida et al. 2024:4 [ref. 41700]). Current status: Valid as Isbrueckerichthys Derijst 1996. Loricariidae: Hypoptopomatinae.

Kronichthys Miranda Ribeiro [A. de] 1908:[1] Masc. Kronichthys subteres Miranda Ribeiro 1908. Type by monotypy. Ref. 3715 is unpaginated. •Valid as Kronichthys Miranda Ribeiro 1908 -- (Isbrücker 1980:13 [ref. 2303], Burgess 1989:430 [ref. 12860], Montoya-Burgos et al. 1998:367 [ref. 23850], Isbrücker 2002:20 [ref. 27178], Weber in Reis et al. 2003:365 [ref. 27061], Armbruster 2004:57 [ref. 27644], Ferraris 2007:263 [ref. 29155], Reis et al. 2012:6 [ref. 31863], Roxo et al. 2012:37 [ref. 32073], Pereira & Reis 2017:73 [ref. 35307], Souza et al. 2020:[3] [ref. 38094]). Current status: Valid as Kronichthys Miranda Ribeiro 1908. Loricariidae: Hypoptopomatinae.

Lampiella Isbrücker [I. J. H.] in Isbrücker et al. 2001:19 Fem. Otocinclus gibbosus Miranda Ribeiro 1908. Type by original designation (also monotypic). •Synonym of Otocinclus Cope 1871 -- (Schaefer in Reis et al. 2003:324 [ref. 27061]). •Valid as Lampiella Isbrücker 2001 -- (Isbrücker 2002:20 [ref. 27178], Ferraris 2007:264 [ref. 29155]). Current status: Valid as Lampiella Isbrücker 2001. Loricariidae: Hypoptopomatinae.

Leptotocinclus Delapieve [M. L. S.], Lehmann A [P.] & Reis [R. E.] 2018:24 Masc. Leptotocinclus madeirae Delapieve, Lehmann A & Reis 2018. Type by original designation. •Valid as Leptotocinclus Delapieve, Lehmann A & Reis 2018. Current status: Valid as Leptotocinclus Delapieve, Lehmann A & Reis 2018. Loricariidae: Hypoptopomatinae.

Macrotocinclus Isbrücker [I. J. H.] & Seidel [I.] in Isbrücker et al. 2001:20 Masc. Otocinclus affinis Steindachner 1877. Type by original designation. •Valid as Macrotocinclus Isbrücker & Seidel 2001 -- (Isbrücker 2002:23 [ref. 27178], Ferraris 2007:271 [ref. 29155]). •Synonym of Otocinclus Cope 1871 -- (Schaefer in Reis et al. 2003:324 [ref. 27061], Delapieve et al. 2018:23 [ref. 35713]). Current status: Synonym of Otocinclus Cope 1871. Loricariidae: Hypoptopomatinae.

Microlepidogaster Eigenmann [C. H.] & Eigenmann [R. S.] 1889:8 Fem. Microlepidogaster perforatus [a] Eigenmann & Eigenmann 1889. Type by original designation (also monotypic). Also appeared in Eigenmann & Eigenmann 1889:42 (18 Aug.) [ref. 1253], original in Apr. 1889. Species originally given as perforatus, emended to perforata. •Synonym of Otocinclus Cope 1871 -- (Isbrücker 1980:81 [ref. 2303]). •Valid as Microlepidogaster Eigenmann & Eienmann 1889 -- (Burgess 1989:439 [ref. 12860], Malabarba 1989:149 [ref. 14217], Schaefer 1991:2 [ref. 18926], Schaefer 1997:42 [ref. 23213], Reis & Schaefer 1998:23 [ref. 23691], Schaefer 1998:377 [ref. 23692], de Pinna 1998:305 [ref. 23847], Isbrücker 2002:23 [ref. 27178], Schaefer in Reis et al. 2003:324 [ref. 27061], Ferraris 2007:272 [ref. 29155], Calegari & Reis 2010:625 [ref. 30974], Martins & Langeani 2011:66 [ref. 31235], Garvalho & Reis 2011:1 [ref. 31240], Martins et al. 2013:379 [ref. 32415], Martins et al. 2014:560 [ref. 33544], Calegari et al. 2014:213 [ref. 33627], Martins et al. 2017:233 [ref. 35356], Martins 2022:269 [ref. 39327]). Current status: Valid as Microlepidogaster Eigenmann & Eigenmann 1889. Loricariidae: Hypoptopomatinae.

Nannoptopoma Schaefer [S. A.] 1996:915 Neut. Otocinclus spectabilis Eigenmann 1914. Type by original designation. •Synonym of Hypoptopoma Günther 1868 -- (Aquino & Schaefer 2010:7 [ref. 30875]). •Valid as Nannoptopoma Schaefer 1996 -- (Schaefer 1997:41 [ref. 23213], Schaefer & Provenzano 1998:225 [ref. 23317], Schaefer 1998:377 [ref. 23692], de Pinna 1998:305 [ref. 23847], Aquino & Miquelarena 2001:1 [ref. 26083], Isbrücker 2002:23 [ref. 27178], Schaefer in Reis et al. 2003:324 [ref. 27061], Ferraris 2007:272 [ref. 29155], Delapieve et al. 2018:22 [ref. 35713]). Current status: Valid as Nannoptopoma Schaefer 1996. Loricariidae: Hypoptopomatinae.

Nannoxyropsis Delapieve [M. L. S.], Lehmann A [P.] & Reis [R. E.] 2018:30 Masc. Nannoxyropsis acicula Delapieve, Lehmann A & Reis 2018. Type by original designation. •Valid as Nannoxyropsis Delapieve, Lehmann A & Reis 2018. Current status: Valid as Nannoxyropsis Delapieve, Lehmann A & Reis 2018. Loricariidae: Hypoptopomatinae.

Neoplecostomus (subgenus of Plecostomus) Eigenmann [C. H.] & Eigenmann [R. S.] 1888:171 Masc. Plecostomus microps Steindachner 1877. Type by original designation. •Valid as Neoplecostomus Eigenmann & Eigenmann 1888 -- (Isbrücker 1980:6 [ref. 2303], Burgess 1989:429 [ref. 12860], Langeani 1990 [ref. 16736], Bizerril 1995:693 [ref. 23196], de Pinna 1998:304 [ref. 23847], Montoya-Burgos et al. 1998:367 [ref. 23850], Isbrücker 2002:23 [ref. 27178], Ferraris in Reis et al. 2003:319 [ref. 27061], Armbruster 2004:58 [ref. 27644], Zawadzki et al. 2004:572 [ref. 27753], Ferraris 2007:273 [ref. 29155], Zawadski et al. 2008:31 [ref. 29594], de Carvalho Paixão & Toledo-Piza 2009:563 [ref. 30675], Roxo et al. 2012:1 [ref. 31839], Roxo et al. 2012:37 [ref. 32073], Roxo et al. 2014:115 [ref. 33492], Andrade & Langeani 2014:1 [ref. 33618], Cherobim et al. 2016:2 [ref. 35001], Pereira & Reis 2017:73 [ref. 35307], Roxo et al. 2017:226 [ref. 35467], Silva et al. 2019:93 [ref. 36454], Oliveira & Oyakawa 2019:401 [ref. 36657], Uzeda et al. 2024:1 [ref. 41690]). Current status: Valid as Neoplecostomus Eigenmann & Eigenmann 1888. Loricariidae: Hypoptopomatinae.

Niobichthys Schaefer [S. A.] & Provenzano [F.] 1998:222 Masc. Niobichthys ferrarisi Schaefer & Provenzano 1998. Type by original designation (also monotypic). •Valid as Niobichthys Schaefer & Provenzano 1998 -- (Schaefer 1998:377 [ref. 23692], Isbrücker 2002:23 [ref. 27178], Schaefer in Reis et al. 2003:324 [ref. 27061], Ferraris 2007:274 [ref. 29155], Delapieve et al. 2018:22 [ref. 35713]). Current status: Valid as Niobichthys Schaefer & Provenzano 1998. Loricariidae: Hypoptopomatinae.

Otocinclus Cope [E. D.] 1871:112 Masc. Otocinclus vestitus Cope 1872. Type by subsequent monotypy. Appeared first with brief description and without species as above; more complete description and species added in 1872:283 [ref. 921]. •Valid as Otocinclus Cope 1871 -- (Isbrücker 1980:81 [ref. 2303], Burgess 1989:438 [ref. 12860], Malabarba 1989:150 [ref. 14217], Schaefer 1991:2 [ref. 18926], Schaefer 1996:925 [ref. 22565], Schaefer 1997:16 [ref. 23213], Schaefer & Provenzano 1998:225 [ref. 23317], Schaefer 1998:377 [ref. 23692], de Pinna 1998:305 [ref. 23847], Britski et al. 1999:133 [ref. 24147], Britto & Moreira 2002:1068 [ref. 26512], Britto et al. 2002:733 [ref. 26546], Isbrücker 2002:23 [ref. 27178], Schaefer in Reis et al. 2003:324 [ref. 27061], Reis 2004:109 [ref. 27934], Lehmann 2006:379 [ref. 28896], Ferraris 2007:274 [ref. 29155], Lehmann A. et al. 2010:57 [ref. 30756], Lehmann A. et al. 2010:635 [ref. 31083], Ribeiro & Lehmann A. 2016:240 [ref. 34636], Bertaco et al. 2016:419 [ref. 34561], Delapieve et al. 2018:23 [ref. 35713]). Current status: Valid as Otocinclus Cope 1871. Loricariidae: Hypoptopomatinae.

Otothyris Myers [G. S.] 1927:127 Fem. Otothyris canaliferus Myers 1927. Type by original designation (also monotypic). •Valid as Otothyris Myers 1927 -- (Isbrücker 1980:85 [ref. 2303], Burgess 1989:439 [ref. 12860], Malabarba 1989:151 [ref. 14217], Schaefer 1991:2 [ref. 18926], Reis & Schaefer 1992:222 [ref. 17477], Schaefer 1997:41 [ref. 23213], Garavello et al. 1998:3 [ref. 23346], Reis & Schaefer 1998:23 [ref. 23691], Schaefer 1998:377 [ref. 23692], de Pinna 1998:305 [ref. 23847], Montoya-Burgos et al. 1998:367 [ref. 23850], Isbrücker 2002:24 [ref. 27178], Schaefer in Reis et al. 2003:325 [ref. 27061], Ferraris 2007:275 [ref. 29155], Rosa et al. 2014:53 [ref. 33228], Bertaco et al. 2016:419 [ref. 34561]). Current status: Valid as Otothyris Myers 1927. Loricariidae: Hypoptopomatinae.

Otothyropsis Ribeiro [A. C.], Carvalho [M.] & Melo [A. L. A.] 2005:491 Masc. Otothyropsis marapoama Ribeiro, Carvalho & Melo 2005. Type by original designation (also monotypic). •Valid as Otothyropsis Ribeiro, Carvalho & Melo 2005 -- (Ferraris 2007:276 [ref. 29155], Calegari et al. 2011:255 [ref. 31384], Calegari et al. 2013:130 [ref. 32493], Lippert et al. 2014:238 [ref. 33355], Calegari et al. 2017:231 [ref. 35203]). •Synonym of Hisonotus Eigenmann & Eigenmann 1889 -- (Roxo et al. 2019:161 [ref. 36538]). Current status: Valid as Otothyropsis Ribeiro, Carvalho & Melo 2005. Loricariidae: Hypoptopomatinae.

Oxyropsis Eigenmann [C. H.] & Eigenmann [R. S.] 1889:39 Fem. Oxyropsis wrightiana Eigenmann & Eigenmann 1889. Type by original designation (also monotypic). •Synonym of Hypoptopoma Günther 1868 -- (Isbrücker 1980:86 [ref. 2303]). •Valid as Oxyropsis Eigenmann & Eigenmann 1889 -- (Schaefer 1991:2 [ref. 18926], Burgess & Finley 1996:169 [ref. 22901], Schaefer 1997:41 [ref. 23213], Schaefer & Provenzano 1998:225 [ref. 23317], Schaefer 1998:377 [ref. 23692], de Pinna 1998:305 [ref. 23847], Aquino & Schaefer 2002:375 [ref. 26022], Isbrücker 2002:24 [ref. 27178], Schaefer in Reis et al. 2003:325 [ref. 27061], Ferraris 2007:276 [ref. 29155], Aquino & Sabaj Pérez 2016:129 [ref. 34526], Delapieve et al. 2018:23 [ref. 35713]). Current status: Valid as Oxyropsis Eigenmann & Eigenmann 1889. Loricariidae: Hypoptopomatinae.

Pareiorhaphis Miranda Ribeiro [A. de] 1918:106 Fem. Hemipsilichthys calmoni [cameroni] Steindachner 1907. Type by subsequent designation. The type species was initially spelled cameroni; see account of cameroni. Earliest type designation is Regan 1920:14 [Zoological Record for 1918] and Jordan 1923:153 [ref. 2421] as Hemipsilichthys calmoni Ribeiro (see Derijst 1996:62 [ref. 22356]). Hemipsilichthys duseni was designated type by Gosline 1947:102 [ref. 1857]. Although confusing, apparently calmoni of Miranda Ribeiro is calmoni Steindachner; see Derijst 1996:62 [ref. 22356]. Treated as valid by Isbrücker 1980:13 [ref. 2303] and Burgess 1989:430 [ref. 12860] but with type as duseni; calmoni is placed by Isbrücker in Hemispilichthys which makes Pareiorhaphis a junior synonym of Hemipsilichthys. •Synonym of Hemipsilichthys Eigenmann & Eigenmann 1889 -- (Isbrücker 2002:15 [ref. 27178], Weber in Reis et al. 2003:353 [ref. 27061]). •Valid as Pareiorhaphis Miranda Ribeiro 1918 -- (Cramer et al. 2007:56 [ref. 29959] and polyphyletic, Ferraris 2007:279 [ref. 29155], Pereira et al. 2007:444 [ref. 29466], Pereira et al. 2010:33 [ref. 30753], Roxo et al. 2012:1 [ref. 31839], Roxo et al. 2012:37 [ref. 32073], Pereira & Britto 2012:519 [ref. 32198], Pereira et al. 2012:539 [ref. 32218], Pereira & Zanata 2014:35 [ref. 33256], Pereira et al. 2015:556 [ref. 34007], Pereira et al. 2016:443 [ref. 34623], Bertaco et al. 2016:419 [ref. 34561], Pereira & Reis 2017:75 [ref. 35307], Pereira et al. 2017:1 [ref. 35608], Pereira et al. 2018:632 [ref. 36274], Oliveira & Oyakawa 2019:401 [ref. 36657], Pereira & Reis 2022:1 [ref. 39732], Pereira et al. 2024:69 [ref. 40883]). Current status: Valid as Pareiorhaphis Miranda Ribeiro 1918. Loricariidae: Hypoptopomatinae.

Pareiorhina Gosline [W. A.] 1947:104 Fem. Rhinelepis rudolphi Miranda Ribeiro 1911. Type by original designation (also monotypic). •Valid as Pareiorhina Gosline 1947 -- (Isbrücker 1980:15 [ref. 2303], Burgess 1989:430 [ref. 12860], Montoya-Burgos et al. 1998:367 [ref. 23850], Isbrücker 2002:25 [ref. 27178], Weber in Reis et al. 2003:365 [ref. 27061], Bockmann & Ribeiro 2003:231 [ref. 27391], Armbruster 2004:58 [ref. 27644], Chamon et al. 2005:550 [ref. 28313], Ferraris 2007:281 [ref. 29155], Roxo et al. 2012:37 [ref. 32073], Roxa et al. 2012:64 [ref. 32231], Silva et al. 2013:65 [ref. 32763], Azevedo-Santos & Roxo 2015:377 [ref. 33717], Silva et al. 2016:381 [ref. 34417], Pereira & Reis 2017:76 [ref. 35307]). Current status: Valid as Pareiorhina Gosline 1947. Loricariidae: Hypoptopomatinae.

Parotocinclus (subgenus of Hisonotus) Eigenmann [C. H.] & Eigenmann [R. S.] 1889:41 Masc. Otocinclus maculicauda Steindachner 1877. Type by monotypy. See Le Bail et al. 2000:262 [ref. 24549]. •Valid as Parotocinclus Eigenmann & Eigenmann 1889 -- (Garavello 1976 [ref. 7249], Isbrücker 1980:80 [ref. 2303], Schaefer 1988:182 [ref. 6236], Garavello 1988:117 [ref. 6853], Burgess 1989:438 [ref. 12860], Schaefer 1991:2 [ref. 18926], Schaefer & Provenzano 1993 [ref. 20828], Lacerda & Evers 1996:88 [ref. 22351], Schaefer 1997:41 [ref. 23213], Reis & Schaefer 1998:23 [ref. 23691], Schaefer 1998:377 [ref. 23692], de Pinna 1998:305 [ref. 23847], Montoya-Burgos et al. 1998:367 [ref. 23850], Schaefer in Reis et al. 2003:326 [ref. 27061], Garavello & Britski 2003:253 [ref. 27469], Gauger & Buckup 2005:509 [ref. 28562], Cramer et al. 2007:56 [ref. 29959] as polyphyletic, Ferraris 2007:281 [ref. 29155], Sarmento-Soares et al. 2009:191 [ref. 30254], Britski & Garavello 2009:60 [ref. 30260], Martins & Langeani 2011:76 [ref. 31235], Garvalho & Reis 2011:1 [ref. 31240], Lehmann A. & Reis 2012:56 [ref. 32074], Lehmann A. et al. 2013:435 [ref. 32919], Ramos et al. 2013:787 [ref. 33028]; Lehmann A. et al. 2014:27 [ref. 33225], Lehmann A. et al. 2015:47 [ref. 33723], Ramos et al. 2016:[1] [ref. 34352], Roxo et al. 2016:125 [ref. 34921], Roxo et al. 2017:260 [ref. 35139], Ramos et al. 2017:[1] [ref. 35268], Lehmann A. et al. 2018:584 [ref. 36321], Roxo et al. 2019:346 [ref. 36855], Pereira et al. 2019:597 [ref. 37052], Silva-Junior et al. 2020:1 [ref. 37598], Lehmann A. et al. 2020:1 [ref. 37693], Lehmann A. & Reis 2021:449 [ref. 38354], Ramos et al. 2021:1 [ref. 38561], Lehmann A. et al. 2022:69 [ref. 39041], Silva-Junior & Zanata 2022:1 [ref. 39783]). Current status: Valid as Parotocinclus Eigenmann & Eigenmann 1889. Loricariidae: Hypoptopomatinae.

Plesioptopoma Reis [R. E.], Pereira [E. H. L.] & Lehmann A. [P.] 2012:6 Fem. Plesioptopoma cuvidens Reis, Pereira & Lehmann A. 2012. Type by original designation (also monotypic). •Valid as Plesioptopoma Reis, Pereira & Lehmann A. 2012. Current status: Valid as Plesioptopoma Reis, Pereira & Lehmann A. 2012. Loricariidae: Hypoptopomatinae.

Pseudotocinclus Nichols [J. T.] 1919:534 Masc. Pseudotocinclus intermedius Nichols 1919. Type by monotypy. •Valid as Pseudotocinclus NIchols 1919 -- (Isbrücker 1980:86 [ref. 2303], Britski & Garavello 1984:226 [ref. 5166], Burgess 1989:439 [ref. 12860], Schaefer 1991:2 [ref. 18926], Reis & Schaefer 1992:222 [ref. 17477], Schaefer 1997:41 [ref. 23213], Reis & Schaefer 1998:23 [ref. 23691], Schaefer 1998:377 [ref. 23692], de Pinna 1998:305 [ref. 23847], Isbrücker 2002:28 [ref. 27178], Schaefer in Reis et al. 2003:327 [ref. 27061], Takako et al. 2005:500 [ref. 28465], Ferraris 2007:289-290 [ref. 29155], Martins & Langeani 2011:66 [ref. 31235], Roxo et al. 2012:37 [ref. 32073] in Neoplecostominae, Pereira & Reis 2017:83 [ref. 35307] not in Neoplecostominae). Current status: Valid as Pseudotocinclus Nichols 1919. Loricariidae: Hypoptopomatinae.

Pseudotothyris Britski [H. A.] & Garavello [J. C.] 1984:232 Fem. Otocinclus obtusus Miranda Ribeiro 1911. Type by original designation. •Valid as Pseudotothyris Britski & Garavello 1984 -- (Burgess 1989:439 [ref. 12860], Schaefer 1991:2 [ref. 18926], Reis & Schaefer 1992:222 [ref. 17477], Schaefer 1997:41 [ref. 23213], Reis & Schaefer 1998:23 [ref. 23691], Schaefer 1998:377 [ref. 23692], de Pinna 1998:305 [ref. 23847], Montoya-Burgos et al. 1998:367 [ref. 23850], Isbrücker 2002:28 [ref. 27178], Schaefer in Reis et al. 2003:327 [ref. 27061], Ferraris 2007:290 [ref. 29155], Martins et al. 2014:822, 824 [ref. 33221]). Current status: Valid as Pseudotothyris Britski & Garavello 1984. Loricariidae: Hypoptopomatinae.

Psilichthys Steindachner [F.] 1907:82 Masc. Psilichthys cameroni Steindachner 1907. Type by monotypy. Originally named as above in this abstract, name later changed to Hemipsilichthys and treated in more detail in Steindachner 1907:475, Pls. 1-2 [ref. 18797]. Objectively invalid; Psilichthys is preoccupied by Psilichthys Hall 1900 in fossil fishes. •In the synonymy of Hemipsilichthys Eigenmann & Eigenmann 1889 -- (Isbrücker 2002:28 [ref. 27178], Weber in Reis et al. 2003:353 [ref. 27061]). •Synonym of Pareiorhaphis Miranda Ribeiro 1918 -- (Pereira & Reis 2017:75 [ref. 35307]). 1°Homonym. Current status: Synonym of Pareiorhaphis Miranda Ribeiro 1918. Loricariidae: Hypoptopomatinae.

Rhinolekos Martins [F. de O.] & Langeani [F.] 2011:66 Masc. Rhinolekos britskii Martins & Langeani 2011. Type by original designation. •Valid as Rhinolekos Martins & Langeani 2011 -- (Roxo et al. 2015:109 [ref. 33671]). Current status: Valid as Rhinolekos Martins & Langeani 2011. Loricariidae: Hypoptopomatinae.

Rhinotocinclus Reis [R. E.] & Lehmann A. [P.] 2022:5 Masc. Parotocinclus longirostris Garavello 1988. Type by original designation. •Valid as Rhinotocinclus Reis & Lehmann A. 2022. Current status: Valid as Rhinotocinclus Reis & Lehmann A. 2022. Loricariidae: Hypoptopomatinae.

Schizolecis Britski [H. A.] & Garavello [J. C.] 1984:228 Fem. Microlepidogaster guntheri Miranda Ribeiro 1918. Type by original designation (also monotypic). •Valid as Schizolecis Britski & Garavello 1984 -- (Burgess 1989:439 [ref. 12860], Schaefer 1991:2 [ref. 18926], Schaefer 1997:42 [ref. 23213], Reis & Schaefer 1998:23 [ref. 23691], Schaefer 1998:377 [ref. 23692], de Pinna 1998:305 [ref. 23847], Montoya-Burgos et al. 1998:367 [ref. 23850], Isbrücker 2002:29 [ref. 27178], Schaefer in Reis et al. 2003:327 [ref. 27061], Ferraris 2007:295 [ref. 29155].). Current status: Valid as Schizolecis Britski & Garavello 1984. Loricariidae: Hypoptopomatinae.