Natura - nature
  
 actualia - actual entities
    
 Mundus Plinius - physical world
      
 naturalia - natural bodies
        
 Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
          
 Clade neomura Cavalier-Smith, 1987
            
 Domain Eukaryota Chatton, 1925 - eukaryotes
              
 Clade discaria Cavalier-Smith, 2021
                
 Clade dorsates Cavalier-Smith, 2021
                  
 Clade podiates Cavalier-Smith, 2012
                    
 Clade Amorphea Adl et al. 2012 [Simpson, Medina & Adl 2020]
                      
 Clade Obazoa Brown, Sharpe, Silberman, Heiss, Lang, Simpson & Roger 2013
                        
 Clade Opisthokonta Cavalier-Smith 1987 [Simpson & Medina 2020] - animal-fungal clade
                          
 Superkingdom Holozoa Lang, O'Kelly, Nerad, Gray & Burger, 2002
                            
 Clade filozoa Shalchian-Tabrizi, Minge, Espelund, Orr, Ruden, Jakobsen & Cavalier-Smith, 2008
                              
 Kingdom Animalia Linnaeus, 1758 - animals
                                
 Clade Planulozoa Wallberg, Thollesson, Farris & Jondelius 2004
                                  
 Subkingdom Bilateria Hatschek, 1888 - bilaterians
                                    
 Clade Nephrozoa Jondelius, Ruiz-Trillo, Baguñà & Riutort 2002
                                      
 Infrakingdom Deuterostomia Grobben, 1908
                                        
 Phylum Chordata Bateson, 1885 - chordates
                                          
 Subphylum Craniata auct.
                                            
 Infraphylum Vertebrata Lamarck, 1801 - vertebrates
                                              
 Clade Pan-Gnathostomata Downs 2020
                                                
 Superclass Gnathostomataᵀ Gegenbaur, 1874 - jawed vertebrates
                                                  
 [crown] Clade Eugnathostomata
                                                    
 Clade Pan-Osteichthyes Rowe 2004 [Moore & Near 2020]
                                                      
 Clade Osteichthyes Huxley 1880 [Moore & Near 2020]
                                                        
 Clade Pan-Actinopterygii Rowe 2004 [Moore & Near 2020]
                                                          
 Clade Actinopterygiiᵀ Woodward 1891 [Moore & Near 2020]
                                                            
 Clade Pan-Actinopteri Moore & Near 2020
                                                              
 Class Actinopteri Cope, 1871
                                                                
 Subclass Neopterygii Regan, 1923
                                                                  
 Infraclass Teleosteomorpha Arratia, 2001
                                                                    
 Division Teleostei Müller, 1845
                                                                      
 Supercohort Teleocephala de Pinna, 1996 - crown-group Teleostei
                                                                        
 Cohort Clupeocephala Patterson & Rosen, 1977
                                                                          
 Subcohort Otomorpha Wiley & Johnson, 2010
                                                                            
 Superorder Ostariophysi Sagemehl, 1885
                                                                              
 Section Otophysa Rosen & Greenwood, 1970
                                                                                
 Superorder Characiphysae Fink & Fink, 1981
                                                                                  
 Clade Pan-Siluriformes Lundberg 2020
                                                                                    
 Order Siluriformesᵀ Bleeker, 1858 - catfishes
                                                                                      
 Suborder Loricarioidei
                                                                                        
 Family Loricariidaeᵀ Rafinesque, 1815 - suckermouth armored catfishes
                                                                                          
 Subfamily Hypoptopomatinae Eigenmann & Eigenmann, 1890 - cascudinhos
                                                                                            
 Genus Otocinclus Cope, 1871
                                                                                              
 Otocinclus affinis Steindachner, 1877 - dwarf sucking catfish
                                                                                              
 Otocinclus batmani Lehmann A., 2006
                                                                                              
 Otocinclus bororo Schaefer, 1997
                                                                                              
 Otocinclus caxarari Schaefer, 1997
                                                                                              
 Otocinclus cocama R.E. Reis, 2004
                                                                                              
 Otocinclus flexilis Cope, 1894
                                                                                              
 Otocinclus gibbosus Miranda-Ribeiro, 1908
                                                                                              
 Otocinclus hasemani Steindachner, 1915
                                                                                              
 Otocinclus hoppei Miranda-Ribeiro, 1939
                                                                                              
 Otocinclus huaorani Schaefer, 1997
                                                                                              
 Otocinclus macrospilus Eigenmann & Allen, 1942
                                                                                              
 Otocinclus mariae Fowler, 1940
                                                                                              
 Otocinclus mimulus Axenrot & Kullander, 2003
                                                                                              
 Otocinclus mura Schaefer, 1997
                                                                                              
 Otocinclus tapirape Britto & Moreira, 2002
                                                                                              
 Otocinclus vestitus Cope, 1872
                                                                                              
 Otocinclus vittatus Regan, 1904
                                                                                              
 Otocinclus xakriaba Schaefer, 1997