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Dinoflagellate taxonomy has been undergoing a comprehensive review in recent decades. Knowledge on Brazilian dinoflagellate flora remains quite incomplete, particularly regarding the size of the country. This study is the first taxonomic survey of freshwater dinoflagellates in the State of ParanĂĄ, southern Brazil. Forty-one freshwater environments were sampled in ParanĂĄ and two others on the border between ParanĂĄ and Santa Catarina during 2010-2015, and 21 dinoflagellate taxa assigned to 13 genera were identified and described based on light (LM) and scanning electron (SEM) microscopy. A new combination is proposed: Parvodinium africanum var. javanicum comb. nov. Three taxa are new records for Brazilian freshwaters: Glenodiniopsis uliginosa, P. africanum var. javanicum and Tyrannodinium edax. Taxonomic and nomenclatural comments about the recorded species as well as their known distribution in Brazil are also given.
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Cavalcante et al. (2017) studied this question.
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