Title:Dermal lip protuberances associated with aquatic surface respiration in juveniles of the piscivorous characid Salminus brasiliensis (Actinopterygii: Characidae)
Title:Redescription of Pectiniunguis gaigei (Chamberlin, 1921) from Guyana, with new distributional data and complementary descriptive notes on similar neotropical species (Chilopoda: Geophilomorpha: Schendylidae)
Title:A further contribution to the knowledge of Pectiniunguis minutus (Demange, 1968), a little known dwarf schendylid centipede from western equatorial Africa (Chilopoda: Geophilomorpha)
Title:Análisis de los materiales tipo de Pleurosigma formosum y P. decorum (Pleurosigmataceae, Bacillariophyta) / Analysis of type material of Pleurosigma formosum and P. decorum (Pleurosigmataceae, Bacillariophyta)
Title:First record of Helobdella hyalina (Hirudinea; Glossiphoniidae) in the mantle cavity of Planorbidae from lentic environments in a Buenos Aires province, Argentina