Title:Populations of Characidium rachovii (Crenuchidae: Characidiinae) with reduction of the adipose fin from Argentina and a Southernmost record of C. occidentale
Title:The role of Phyllocaulis variegatus (Mollusca: Veronicellidae) in the transmission of digenean parasites / El papel de Phyllocaulis variegatus (Mollusca: Veronicellidae) en la transmisión de parásitos digéneos