Acalle is a genus of freshwater

sponges Sponges or sea sponges are primarily marine invertebrates of the animal phylum Porifera (; meaning 'pore bearer'), a basal clade and a sister taxon of the diploblasts. They are sessile filter feeders that are bound to the seabed, and ar ...

in the family

Metaniidae Metaniidae is a family of freshwater sponges, with five genera and 27 species: * ''Acalle (sponge), Acalle'' Gray, 1867 ** ''Acalle recurvata'' (Bowerbank, 1863) * ''Corvomeyenia'' Weltner, 1913 ** ''Corvomeyenia carolinensis'' Harrison, 1971 ** ...

. The species of this genus are found in South America, specifically the Amazon River region of Brazil.

Taxonomy

''Acalle'' contains the following species: *'' Acalle recurvata'' (Bowerbank, 1863)

References

{{Taxonbar, from=Q21857377 Heteroscleromorpha Fauna of the Amazon Sponges of Brazil Taxa described in 1867 Taxa named by John Edward Gray Monotypic sponge genera