Title:Marine diatoms from Buenos Aires coastal waters (Argentina). V. species of the genus Chaetoceros / Diatomeas marinas de aguas costeras de Buenos Aires (Argentina). V. Especies del género Chaetoceros
Title:First report on the leafhopper genus Balera Young (Hemiptera, Cicadellidae, Typhlocybinae, Alebrini) from Argentina, and description of a new species
Title:Una nueva especie del género Macraspis Macleay (Scarabaeidae "Pleurosticti": Rutelinae: Rutelini) de Colombia / A new species of the genus Macraspis Macleay (Scarabaeidae «Pleurosticti»: Rutelinae: Rutelini) from Colombia
Title:The epizoic marine diatom Sceptronema orientale (Licmophoraceae, Licmophorales): epitypification and emendation of specific and generic descriptions