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Otocinclus affinis Steindachner, 1877
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Otocinclus bororo Schaefer, 1997
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Otocinclus caxarari Schaefer, 1997
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Otocinclus flexilis Cope, 1894
- Otocinclus fimbriatus Cope, 1894; (synonym)
- Otocinclus arnoldi Regan, 1909; (synonym)
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Otocinclus gibbosus Miranda-Ribeiro, 1908
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Otocinclus hasemani Steindachner, 1915
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Otocinclus hoppei Miranda-Ribeiro, 1908
- Otocinclus hoppei Miranda-Ribeiro, 1939
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Otocinclus huaorani Schaefer, 1997
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Otocinclus macrospilus Eigenmann & Allen, 1942
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Otocinclus mariae Fowler, 1940
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Otocinclus mura Schaefer, 1997
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Otocinclus vestitus Cope, 1871
- Otocinclus vestitus Cope, 1872
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Otocinclus vittatus Regan, 1904
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Otocinclus xakriaba Schaefer, 1997