New freshwater sponges from Amazonian waters

Volkmer-Ribeiro, Cecilia; Becker Maciel, Silvia

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New freshwater sponges from Amazonian waters

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Volkmer-Ribeiro, C., & Becker Maciel, S. (1983). New freshwater sponges from Amazonian waters. Amazoniana: Limnologia et Oecologia Regionalis Systematis Fluminis Amazonas, 8(2), 255-264.

Cite as: http://hdl.handle.net/21.11116/0000-0004-6D70-4

Abstract

Four species of freshwater sponges have their first register of occurrence for Amazonian waters upon specimens collected from Culuene and Sete de Setembro Rivers (Xingú basin), Tapirapés River (Araguaia basin) and Cuieiras River. Trochospongilla pennsylvanica (POTTS 1882) and Trochospongilla variabilis BONETTO & EZCURRA DE DRAGO (1973) occurred as minute specimens inside large sponges of the genus Metania GRAY (1867) or of the genus Drulia GRAY (1867). T. pennsylvanica has its first register of occurrence for the Neotropical region. Spongilla spoliata n. sp. resembles Spongilla inarmata ANNADALE (1918) and Spongilla aspinosa POTTS (1880) but is readily separated from these two species on account of the characteristic spines on its microscleres. Radiospongilla amazonensis n. sp. differs from its congeners by the particular characteristics of its megascleres and gemmoscleres.