Two new species of the catfish genus Trichomycterus (Siluriformes: Trichomycteridae) from the rio Ribeira de Iguape Basin, southeastern Brazil by Wolmar Benjamin Wosiacki, Osvaldo Takeshi Oyakawa

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Harttia absaberi, a new species of loricariid catfish (Siluriformes: Loricariidae: Loricariinae) from the upper rio Paraná basin, Brazil by Osvaldo Takeshi Oyakawa, Ilana Fichberg, Francisco Langeani

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Revision of the genus Pseudotocinclus (Siluriformes: Loricariidae: Hypoptopomatinae), with descriptions of two new species by Adriana Kazue Takako, Claudio Oliveira, Osvaldo Takeshi Oyakawa

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Turnover of multiple sex chromosomes in Harttia catfish (Siluriformes, Loricariidae): a glimpse from whole chromosome painting by Francisco de Menezes Cavalcante Sassi, Geize Aparecida Deon, Alexandr Sember, Thomas Liehr, Osvaldo Takeshi Oyakawa, Orlando Moreira Filho, Luiz Antonio Carlos Bertollo, Marcelo Ricardo Vicari, Marcelo de Bello Cioffi

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Homeology of sex chromosomes in Amazonian Harttia armored catfishes supports the X-fission hypothesis for the X1X2Y sex chromosome system origin by Francisco de Menezes Cavalcante Sassi, Alexandr Sember, Geize Aparecida Deon, Thomas Liehr, Niklas Padutsch, Osvaldo Takeshi Oyakawa, Marcelo Ricardo Vicari, Luiz Antonio Carlos Bertollo, Orlando Moreira-Filho, Marcelo de Bello Cioffi

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