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/siluriformes/pseudopimelodidae/microglanis/cottoides/5.jpg "Microglanis cottoides")
Species:
Caption: UFRGS 20930, Biguacu basin, Antonio Carlos, SC, Brazil/siluriformes/pseudopimelodidae/microglanis/cottoides/6.jpg "Microglanis cottoides")
Species:
Caption: UFRGS 20930, Biguacu basin, Antonio Carlos, SC, Brazil. Dorsal view/siluriformes/trichomycteridae/trichomycterus/sp%60jiboia%60/1.jpg "Trichomycterus sp. `JIBOIA`")
Species:
Caption: UFRN 14675, 85.47 mm SL/siluriformes/trichomycteridae/trichomycterus/sp%60jiboia%60/3.jpg "Trichomycterus sp. `JIBOIA`")
Species:
Caption: UFRN 14676, 51.77 mm SL/siluriformes/trichomycteridae/trichomycterus/sp%60jiboia%60/4.jpg "Trichomycterus sp. `JIBOIA`")
Species:
Caption: UFRN 14676, 51.77 mm SL, dorsal view/siluriformes/trichomycteridae/trichomycterus/sp%60jiboia%60/5.jpg "Trichomycterus sp. `JIBOIA`")
Species:
Caption: UFRN 14676, 51.77 mm SL, ventral view/siluriformes/callichthyidae/hoplisoma/benattii/6.jpg "Hoplisoma benattii")
Species:
Caption: Under water/siluriformes/loricariidae/pseudancistrus/sidereus/11.jpg "Pseudancistrus sidereus")
Species:
Caption: Underside of caudal peduncle/siluriformes/heptapteridae/goeldiella/eques/4.jpg "Goeldiella eques")
Species:
Caption: Underside of head/siluriformes/loricariidae/hypancistrus/furunculus/7.jpg "Hypancistrus furunculus")
Species:
Caption: Underside of head/siluriformes/loricariidae/megalancistrus/sp%28l234%29/6.jpg "Megalancistrus sp. (L234)")
Species:
Caption: Underside of head showing everted spines/siluriformes/ictaluridae/pylodictis/olivaris/3.jpg "Pylodictis olivaris")
Species:
Caption: Underwater/siluriformes/ictaluridae/pylodictis/olivaris/7.jpg "Pylodictis olivaris")
Species:
Caption: Underwater/siluriformes/loricariidae/chaetostoma/sp%28l335%29/1.jpg "Chaetostoma sp. (L335)")
Species:
Caption: Underwater/siluriformes/loricariidae/guyanancistrus/brevispinis/2.jpg "Guyanancistrus brevispinis")
Species:
Caption: Underwater/siluriformes/loricariidae/panaqolus/tankei/5.jpg "Panaqolus tankei")
Species:
Caption: Underwater/siluriformes/loricariidae/panaque/nigrolineatus/14.jpg "Panaque nigrolineatus")
Species:
Caption: Underwater/siluriformes/loricariidae/rineloricaria/sp%28l042%29/4.jpg "Rineloricaria sp. (L042)")
Species:
Caption: Underwater/siluriformes/loricariidae/rineloricaria/sp%28l042%29/1.jpg "Rineloricaria sp. (L042)")
Species:
Caption: Underwater/siluriformes/plotosidae/cnidoglanis/macrocephalus/1.jpg "Cnidoglanis macrocephalus")
Species:
Caption: Underwater/siluriformes/loricariidae/curculionichthys/cf_sabaji/2.jpg "Curculionichthys cf. sabaji")
Species:
Caption: Underwater - Rio Xingu/siluriformes/loricariidae/hypostomus/sp%28l087%29/5.jpg "Hypostomus sp. (L087)")
Species:
Caption: Underwater - Rio Xingu/siluriformes/loricariidae/aphanotorulus/emarginatus/13.jpg "Aphanotorulus emarginatus")
Species:
Caption: Underwater - Rio Xingu (Vitoria)/siluriformes/callichthyidae/hoplisoma/carlae/4.jpg "Hoplisoma carlae")
Species:
Caption: Underwater biotope/siluriformes/bagridae/bagrus/meridionalis/6.jpg "Bagrus meridionalis")
Species:
Caption: Underwater habitat: Lake Malawi/siluriformes/bagridae/tachysurus/wuyueensis/1.jpg "Tachysurus wuyueensis")
Species:
Caption: Underwater in habitat/siluriformes/loricariidae/baryancistrus/sp%60belo_monte%60/3.jpg "Baryancistrus sp. `BELO MONTE`")
Species:
Caption: Underwater in habitat/siluriformes/loricariidae/baryancistrus/sp%60belo_monte%60/4.jpg "Baryancistrus sp. `BELO MONTE`")
Species:
Caption: Underwater in habitat/siluriformes/loricariidae/parancistrus/nudiventris/2.jpg "Parancistrus nudiventris")
Species:
Caption: Underwater in habitat/siluriformes/loricariidae/spectracanthicus/punctatissimus/9.jpg "Spectracanthicus punctatissimus")
Species:
Caption: Underwater in habitat/siluriformes/loricariidae/spectracanthicus/punctatissimus/13.jpg "Spectracanthicus punctatissimus")
Species:
Caption: Underwater in habitat (sport var.) L016/siluriformes/auchenipteridae/centromochlus/schultzi/4.jpg "Centromochlus schultzi")
Species:
Caption: Underwater in Rio Xingu habitat/siluriformes/loricariidae/baryancistrus/xanthellus/16.jpg "Baryancistrus xanthellus")
Species:
Caption: Underwater in Rio Xingu habitat/siluriformes/aspredinidae/amaralia/oviraptor/1.jpg "Amaralia oviraptor")
Species:
Caption: Underwater Rio da Prata, Mato Grosso do Sul,Brazil/siluriformes/heptapteridae/rhamdia/laticauda/1.jpg "Rhamdia laticauda")
Species:
Caption: Underwater shot - Cenote Azul nr Cancun, Mexico/siluriformes/heptapteridae/rhamdia/laticauda/4.jpg "Rhamdia laticauda")
Species:
Caption: Underwater shot - Cenote Azul nr Cancun, Mexico/siluriformes/bagridae/bagrus/meridionalis/4.jpg "Bagrus meridionalis")
Species:
Caption: Underwater shot of Male and offspring/siluriformes/loricariidae/baryancistrus/sp%60belo_monte%60/1.jpg "Baryancistrus sp. `BELO MONTE`")
Species:
Caption: Underwater: Adult male/siluriformes/heptapteridae/rhamdia/laticauda/6.jpg "Rhamdia laticauda")
Species:
Caption: Underwater: Gran Cenote (West of Tulum, Mexico)/siluriformes/heptapteridae/rhamdia/laticauda/7.jpg "Rhamdia laticauda")
Species:
Caption: Underwater: Gran Cenote (West of Tulum, Mexico)/siluriformes/clariidae/clarias/gariepinus/26.jpg "Clarias gariepinus")
Species:
Caption: Underwater: Lake Malawi/siluriformes/loricariidae/ancistrus/sp%28l352%29/1.jpg "Ancistrus sp. (L352)")
Species:
Caption: Underwater: Mouth of Rio Iriri./siluriformes/bagridae/hemibagrus/spilopterus/2.jpg "Hemibagrus spilopterus")
Species:
Caption: Underwater: Rajaprabha artificial lake/siluriformes/bagridae/hemibagrus/spilopterus/3.jpg "Hemibagrus spilopterus")
Species:
Caption: Underwater: Rajaprabha artificial lake/siluriformes/bagridae/hemibagrus/spilopterus/4.jpg "Hemibagrus spilopterus")
Species:
Caption: Underwater: Rajaprabha artificial lake, Thailand/siluriformes/loricariidae/ancistrus/sp%60nhamunda%60/4.jpg "Ancistrus sp. `NHAMUNDA`")
Species:
Caption: Underwater: Rio Nhamundá, Brazil/siluriformes/loricariidae/hypancistrus/sp%28l475%29/6.jpg "Hypancistrus sp. (L475)")
Species:
Caption: Underwater: Rio Nhamundá, Brazil/siluriformes/loricariidae/leporacanthicus/galaxias/14.jpg "Leporacanthicus galaxias")
Species:
Caption: Underwater: Rio Nhamundá, Brazil/siluriformes/loricariidae/peckoltia/sp%28l477%29/11.jpg "Peckoltia sp. (L477)")
Species:
Caption: Underwater: Rio Nhamundá, Brazil/siluriformes/ictaluridae/ameiurus/melas/13.jpg "Ameiurus melas")
Species:
Caption: Unicorn Lake, MD/siluriformes/ictaluridae/ameiurus/melas/14.jpg "Ameiurus melas")
Species:
Caption: Unicorn Lake, MD/siluriformes/loricariidae/pseudacanthicus/sp%28l406%29/4.jpg "Pseudacanthicus sp. (L406)")
Species:
Caption: Unique camouflage appears to be on all P. histrix/siluriformes/loricariidae/hypancistrus/lunaorum/16.jpg "Hypancistrus lunaorum")
Species:
Caption: Unspotted variant/siluriformes/loricariidae/hypancistrus/lunaorum/17.jpg "Hypancistrus lunaorum")
Species:
Caption: Unspotted variant/siluriformes/loricariidae/hypancistrus/lunaorum/18.jpg "Hypancistrus lunaorum")
Species:
Caption: Unspotted variant/siluriformes/loricariidae/hypancistrus/lunaorum/19.jpg "Hypancistrus lunaorum")
Species:
Caption: Unspotted variant/siluriformes/sisoridae/glyptothorax/trilineatus/5.jpg "Glyptothorax trilineatus")
Species:
Caption: Upper Irrawady/siluriformes/horabagridae/pachypterus/khavalchor/3.jpg "Pachypterus khavalchor")
Species:
Caption: Upper jaw w/ blunt teeth; lower jaw w/ sharp teeth/siluriformes/heptapteridae/pimelodella/cristata/4.jpg "Pimelodella cristata")
Species:
Caption: Upper Nickerie River/siluriformes/amphiliidae/zaireichthys/maravensis/1.jpg "Zaireichthys maravensis")
Species:
Caption: Upper reaches of Bua River, Malawi/siluriformes/auchenipteridae/centromochlus/schultzi/7.jpg "Centromochlus schultzi")
Species:
Caption: Upper Rio Negro, Brazil/siluriformes/auchenipteridae/tetranematichthys/wallacei/13.jpg "Tetranematichthys wallacei")
Species:
Caption: Upper Rio Negro, Brazil/siluriformes/auchenipteridae/trachelyichthys/decaradiatus/4.jpg "Trachelyichthys decaradiatus")
Species:
Caption: Upper Rio Negro, Brazil/siluriformes/callichthyidae/gastrodermus/pauciradiatus/15.jpg "Gastrodermus pauciradiatus")
Species:
Caption: Upper Rio Negro, Brazil/siluriformes/doradidae/anduzedoras/oxyrhynchus/5.jpg "Anduzedoras oxyrhynchus")
Species:
Caption: Upper Rio Negro, Brazil/siluriformes/doradidae/astrodoras/asterifrons/3.jpg "Astrodoras asterifrons")
Species:
Caption: Upper Rio Negro, Brazil/siluriformes/doradidae/astrodoras/asterifrons/4.jpg "Astrodoras asterifrons")
Species:
Caption: Upper Rio Negro, Brazil/siluriformes/doradidae/platydoras/hancockii/4.jpg "Platydoras hancockii")
Species:
Caption: Upper Rio Negro, Brazil/siluriformes/loricariidae/ancistrus/dolichopterus/32.jpg "Ancistrus dolichopterus")
Species:
Caption: Upper Rio Negro, Brazil/siluriformes/loricariidae/ancistrus/dolichopterus/34.jpg "Ancistrus dolichopterus")
Species:
Caption: Upper Rio Negro, Brazil/siluriformes/loricariidae/dekeyseria/scaphirhynchus/5.jpg "Dekeyseria scaphirhynchus")
Species:
Caption: Upper Rio Negro, Brazil/siluriformes/pimelodidae/pimelodus/blochii/14.jpg "Pimelodus blochii")
Species:
Caption: Upper Rio Negro, Brazil/siluriformes/sisoridae/bagarius/sp%60salween%60/1.jpg "Bagarius sp. `SALWEEN`")
Species:
Caption: Upper Salween River/siluriformes/loricariidae/ancistrus/martini/1.jpg "Ancistrus martini")
Species:
Caption: Upper Zulia River. Photo by Gustavo Ballen./siluriformes/pimelodidae/pimelodus/maculatus/9.jpg "Pimelodus maculatus")
Species:
Caption: Uruguay/siluriformes/loricariidae/hemiancistrus/punctulatus/1.jpg "Hemiancistrus punctulatus")
Species:
Caption: Uruguay, Cerro Largo Dept, Paso Sarandi, Arroyo
/siluriformes/pseudopimelodidae/microglanis/cottoides/1.jpg "Microglanis cottoides")
/siluriformes/callichthyidae/hoplisoma/benattii/1.jpg "Hoplisoma benattii")
/siluriformes/loricariidae/pseudancistrus/sidereus/1.jpg "Pseudancistrus sidereus")
/siluriformes/heptapteridae/goeldiella/eques/1.jpg "Goeldiella eques")
/siluriformes/loricariidae/hypancistrus/furunculus/1.jpg "Hypancistrus furunculus")
/siluriformes/loricariidae/megalancistrus/sp%28l234%29/1.jpg "Megalancistrus sp. (L234)")
/siluriformes/ictaluridae/pylodictis/olivaris/1.jpg "Pylodictis olivaris")
/siluriformes/loricariidae/guyanancistrus/brevispinis/1.jpg "Guyanancistrus brevispinis")
/siluriformes/loricariidae/panaqolus/tankei/1.jpg "Panaqolus tankei")
/siluriformes/loricariidae/panaque/nigrolineatus/1.jpg "Panaque nigrolineatus")
/siluriformes/loricariidae/curculionichthys/cf_sabaji/1.jpg "Curculionichthys cf. sabaji")
/siluriformes/loricariidae/hypostomus/sp%28l087%29/1.jpg "Hypostomus sp. (L087)")
/siluriformes/loricariidae/aphanotorulus/emarginatus/1.jpg "Aphanotorulus emarginatus")
/siluriformes/callichthyidae/hoplisoma/carlae/1.jpg "Hoplisoma carlae")
/siluriformes/bagridae/bagrus/meridionalis/1.jpg "Bagrus meridionalis")
/siluriformes/loricariidae/parancistrus/nudiventris/1.jpg "Parancistrus nudiventris")
/siluriformes/loricariidae/spectracanthicus/punctatissimus/1.jpg "Spectracanthicus punctatissimus")
/siluriformes/auchenipteridae/centromochlus/schultzi/1.jpg "Centromochlus schultzi")
/siluriformes/loricariidae/baryancistrus/xanthellus/1.jpg "Baryancistrus xanthellus")
/siluriformes/clariidae/clarias/gariepinus/1.jpg "Clarias gariepinus")
/siluriformes/bagridae/hemibagrus/spilopterus/1.jpg "Hemibagrus spilopterus")
/siluriformes/loricariidae/ancistrus/sp%60nhamunda%60/1.jpg "Ancistrus sp. `NHAMUNDA`")
/siluriformes/loricariidae/hypancistrus/sp%28l475%29/1.jpg "Hypancistrus sp. (L475)")
/siluriformes/loricariidae/leporacanthicus/galaxias/1.jpg "Leporacanthicus galaxias")
/siluriformes/loricariidae/peckoltia/sp%28l477%29/1.jpg "Peckoltia sp. (L477)")
/siluriformes/ictaluridae/ameiurus/melas/1.jpg "Ameiurus melas")
/siluriformes/loricariidae/pseudacanthicus/sp%28l406%29/1.jpg "Pseudacanthicus sp. (L406)")
/siluriformes/loricariidae/hypancistrus/lunaorum/1.jpg "Hypancistrus lunaorum")
/siluriformes/sisoridae/glyptothorax/trilineatus/1.jpg "Glyptothorax trilineatus")
/siluriformes/horabagridae/pachypterus/khavalchor/1.jpg "Pachypterus khavalchor")
/siluriformes/heptapteridae/pimelodella/cristata/1.jpg "Pimelodella cristata")
/siluriformes/auchenipteridae/tetranematichthys/wallacei/1.jpg "Tetranematichthys wallacei")
/siluriformes/auchenipteridae/trachelyichthys/decaradiatus/1.jpg "Trachelyichthys decaradiatus")
/siluriformes/callichthyidae/gastrodermus/pauciradiatus/1.jpg "Gastrodermus pauciradiatus")
/siluriformes/doradidae/anduzedoras/oxyrhynchus/1.jpg "Anduzedoras oxyrhynchus")
/siluriformes/doradidae/astrodoras/asterifrons/1.jpg "Astrodoras asterifrons")
/siluriformes/doradidae/platydoras/hancockii/1.jpg "Platydoras hancockii")
/siluriformes/loricariidae/ancistrus/dolichopterus/1.jpg "Ancistrus dolichopterus")
/siluriformes/loricariidae/dekeyseria/scaphirhynchus/1.jpg "Dekeyseria scaphirhynchus")
/siluriformes/pimelodidae/pimelodus/blochii/1.jpg "Pimelodus blochii")
/siluriformes/pimelodidae/pimelodus/maculatus/1.jpg "Pimelodus maculatus")