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First report of Corvoheteromeyenia australis (Bonetto & Ezcurra de Drago) for Brazil and taxonomic key for the sponges of Parque Estadual Delta do Jacuí, Rio Grande do Sul, Brazil

A taxonomic key is provided for the assembly of sponges of the floating meadows, in a protected deltaic area at southern Brazil. The roots of the water hyacinths Eichhornia azurea (Sw). Kunth and Eichhornia crassipes (Mart.) Solms-Laubach were seen to be the prefered substrates. The register of C. australis (Bonetto & Ezcurra de Drago, 1966) is the first for Brazil enhancing a discussion of the genus.

Freshwater sponges; floating meadows; protected delta region; southern Brazil


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