Sometimes taxonomists create new names for groups that already have a name. They may do this because they are unaware of the original name, or they may think the organism before them belongs to a different group when in fact it does not. If two or more names are found to apply to the same group, they are considered synonyms. In most cases, the first name takes priority and is considered to be the valid or accepted name. However, there can be exceptions, and it's not always easy to determine which of a series of synonyms should be considered valid or accepted. Here we list the synonyms provided to EOL by our classification partners. We also include other versions of the name that most likely refer to the same group, for example, misspellings in the literature or different variations of the authorship associated with the name.

Preferred marks the preferred name from each source.

IRMNG

Name Relationship
Loricariidae Preferred
Lithoxancistrus Isbrücker, Nijssen & Cala, 1988 Synonym
Plecostomus Gronow, 1763
Peckoltichthys Miranda Ribeiro, 1917
Guyanancistrus Isbrücker In Isbrücker, Seidel, Michels, Schraml & Werner, 2001
Aristommata Holmberg 1893
Hypocolpterus Fowler 1943
Parahemiodon Bleeker, 1862
Oxyloricaria Bleeker, 1862
Plecostumus
Euacanthagenys Fowler, 1945
Loricarichthys
Pogonopomoides Gosline 1947
Hemiancistus
Upsilodus Miranda Ribeiro, 1924
Hemiloricaria Bleeker 1862
Pristiancistrus Fowler, 1945
Parasturisoma Miranda Ribeiro, 1911
Canthopomus Eigenmann & Allen 1942
Fusiloricaria Fowler, 1940
Rinelepis Cuvier 1829
Monistiancistrus Fowler 1940
Rhinelepes Swainson 1839
Aneistrus
Cochliodon Heckel in Kner, 1854
Ancistris
Stoneiella Fowler 1914
Sturiosoma
Rhinolepis
Xenocara Regan 1904
Hemiodon Kner, 1853
Cheiridodus Eigenmann 1922
Paralithoxus Boeseman 1982
Xenomystus Lütken, 1874
Acestra Kner, 1853
Canthopomus Eigenmann 1910
Thysanocara Regan 1906
Hypostoma Spix 1829
Carinotus La Monte 1933
Eurycheilus Reis & Schaefer 1992
Hypostomos Jobert 1878
Chaetostomus Kner 1854
Psilichthys Steindachner, 1907
Plecostomus Gronow in Walbaum, 1792
Watawata Isbrücker & Michels in Isbrücker, Seidel, Michels, Schraml & Werner, 2001
Sophiancistrus Isbrücker & Seidel in Isbrücker, Seidel, Michels, Schraml & Werner, 2001
Ancistomus Isbrücker & Seidel in Isbrücker, Seidel, Michels, Schraml & Werner, 2001
Acanthodemus Marschall, 1873
Diapeltoplites Fowler, 1915
Leliella Isbrücker in Isbrücker, Seidel, Michels, Schraml & Werner, 2001
Quiritixys Isbrücker in Isbrücker, Seidel, Michels, Schraml & Werner, 2001
Plecostomus Swainson, 1839
Zonancistrus Isbrücker in Isbrücker, Seidel, Michels, Schraml & Werner, 2001

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