Number of new species : 63
Akysis meridionalis Ng & Siebert, 2004
Akysis vespa Ng & Kottelat, 2004
Batasio elongatus Ng, 2004
Batasio macronotus Ng & Edds, 2004
Batasio sharavatiensis Bhatt & Jayaram, 2004
Clarias pseudonieuhofii Sudarto, Teugels & Pouyaud, 2004
Clarias sulcatus Ng, 2004
Clupisoma roosae Ferraris, 2004
Corydoras paucerna Knaack, 2004
Corydoras paragua Knaack, 2004
Corydoras albolineatus Knaack, 2004
Corydoras negro Knaack, 2004
Corydoras isbrueckeri Knaack, 2004
Corydoras noelkempffi Knaack, 2004
Epactionotus aky Azpelicueta, Casciotta, Almirón & Koerber, 2004
Epactionotus yasi Almirón, Azpelicueta & Casciotta, 2004
Hemiancistrus megalopteryx Cardoso, 2004
Hemiancistrus meizospilos Cardoso & da Silva, 2004
Hemiancistrus votouro Cardoso & da Silva, 2004
Ituglanis bambui Bichuette & Trajano, 2004
Ituglanis epikarsticus Bichuette & Trajano, 2004
Ituglanis ramiroi Bichuette & Trajano, 2004
Kryptopterus piperatus Ng, Wirjoatmodjo & Hadiaty, 2004
Kryptopterus platypogon Ng, 2004
Microcambeva ribeirae Costa, Lima & Bizerril, 2004
Microsynodontis armatus Ng, 2004
Microsynodontis emarginatus Ng, 2004
Microsynodontis hirsutus Ng, 2004
Microsynodontis laevigatus Ng, 2004
Microsynodontis nannoculus Ng, 2004
Microsynodontis nasutus Ng, 2004
Microsynodontis notatus Ng, 2004
Microsynodontis vigilis Ng, 2004
Mystus armiger Ng, 2004
Notarius biffi Betancur & Acero, 2004
Noturus gladiator Thomas & Burr, 2004
Ompok platyrhynchus Ng & Tan, 2004
Oreoglanis macronemus Ng, 2004
Otocinclus cocama Reis, 2004
Pareuchiloglanis macropterus Ng, 2004
Pareuchiloglanis rhabdurus Ng, 2004
Pimelodella spelaea Trajano, Reis, Bichuette & Maria 2004
Pseudancistrus sidereus Armbruster, 2004
Rhamdia guasarensis Nascimento, Provenzano & Lundberg, 2004
Rita macracanthus Ng, 2004
Silurus duanensis Hu, Lan & Zhang, 2004
Trichomycterus caudofasciatus Alencar, Wilson & Costa, 2004
Trichomycterus diabolus Bockmann, Casatti & de Pinna, 2004
Trichomycterus giganteus Lima & Costa, 2004
Trichomycterus itacambirussu Triques & Vono, 2004
Trichomycterus jequitinhonhae Triques & Vono, 2004
Trichomycterus landinga Triques & Vono, 2004
Trichomycterus maracaya Bockmann & Sazima, 2004
Trichomycterus mboycy Wosiacki & Garavello, 2004
Trichomycterus naipi Wosiacki & Garavello, 2004
Trichomycterus pantherinus Alencar, Wilson & Costa, 2004
Trichomycterus papilliferus Wosiacki & Garavello, 2004
Trichomycterus plumbeus Wosiacki & Garavello, 2004
Trichomycterus pseudosilvinichthys Fernández & Vari, 2004
Trichomycterus taroba Wosiacki & Garavello, 2004
Trichomycterus trefauti Wosiacki, 2004
Wallago micropogon Ng, 2004
Xiurenbagrus gigas Zhao, Lan & Zhang, 2004
Nio
