Spongillidae

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Spongillidae
Spongilla prespensis.jpg
Spongilla prespensis
Scientific classification Red Pencil Icon.png
Kingdom: Animalia
Phylum: Porifera
Class: Demospongiae
Order: Spongillida
Family:Spongillidae
Gray, 1867
Genera

See text

Spongilidae is a family of sponges that live in freshwater lakes and rivers. The following genera are recognized in the family: [1]

<i>Anheteromeyenia</i> genus of sponges

Anheteromeyenia is a genus of freshwater sponge. It has been recorded in the Nearctic, the Neotropics. This taxon was initially a subgenus of Heteromeyenia when K. Schöder circumscribed it in 1927, but W. M. de Laubenfels made it a genus in its own right in 1936.

Racekiela is a genus of freshwater sponges in the family Spongillidae.

Radiospongilla is a genus of freshwater sponges in the family Spongillidae. It was defined by Penney and Racek in 1968. The type species is Radiospongilla sceptroides.

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<i>Spongilla</i> genus of sponges

Spongilla is a genus of freshwater sponges in the family Spongillidae found in lakes and slow streams. Sponges of the genus Spongilla attach themselves to rocks and logs and filter the water for various small aquatic organisms such as protozoans, bacteria, and other free-floating pond life. Unlike marine sponges, freshwater sponges are exposed to far more adverse and variable environmental conditions, so they have developed gemmules as a means of dormancy. When exposed to excessively cold or otherwise harsh situations, the sponges form these gemmules, which are highly resistant "buds" that can live dormant after the mother sponge has died. When conditions improve, the gemmules "germinate" and a new sponge is born.

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<i>Empis</i> genus of insects

Empis is a genus of dance fly, in the fly family Empididae. It contains the following subgenera and species:

Radiospongilla sceptroides is a species of freshwater sponge in the family Spongillidae. It was described as Spongilla sceptroides by Scottish-born Australian zoologist William A. Haswell in 1883, who discovered it growing on submerged wood in a pond in the vicinity of Brisbane. He described it as "Sponge green, encrusting, smooth, moderately elastic, not crumbling." He noted the spicules were fusiform and pointed. It was found growing next to a yellowish freshwater sponge that he described as Spongilla botryoides. A 1968 review of freshwater sponges failed to locate Haswell's original type specimen, so a new one was selected from the Merrika River near Womboyn in New South Wales.

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References

  1. "Spongillidae". World Register of Marine Species. Retrieved 13 April 2019.