Title:Description of two new species of Plesiopelma (Araneae, Theraphosidae, Theraphosinae) from Argentina / Descripción de dos nuevas especies de Plesiopelma (Araneae, Theraphosidae, Theraphosinae) de Argentina
Title:Revalidación de la presencia de Lygodium venustum (Lygodiaceae) en la Argentina, con notas nomenclaturales / Renewal of the presence of Lygodium venustum (Lygodium) in the Argentina with nomenclatural notes
Title:Escarabajos (Coleoptera: Scarabaeoidea) del departamento del Chocó, Colombia / Beetles (Coleoptera: Scarabaeoidea) from Department of Chocó, Colombia
Title:The epizoic marine diatom Sceptronema orientale (Licmophoraceae, Licmophorales): epitypification and emendation of specific and generic descriptions
Title:A distinctive new species of biting midge in the subgenus Euprojoannisia Brèthes from Mexico with new records of Neotropical species of Forcipomyia Meigen (Diptera: Ceratopogonidae)
Title:Anatomy and phylogenetic relationships of a new catfish species from
northeastern Argentina with comments on the phylogenetic relationships of the
genus Rhamdella Eigenmann and Eigenmann 1888 (Siluriformes, Heptapteridae)