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Yellow encrusting sponge
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Porifera
Class:	Demospongiae
Order:	Biemnida
Family:	Biemnidae
Genus:	Biemna
Species:	B. anisotoxa
Binomial name
Biemna anisotoxa Lévi, 1963

The yellow encrusting sponge (Biemna anisotoxa) is a species of sea sponge in the family Biemnidae. This sponge is known from the west coast of South Africa to Port Elizabeth. It is endemic to this region.

Description

The yellow encrusting sponge is beige-yellow and grows in crusts of up to 1 cm thick. It has small but distinct oscula which may be slightly raised from the surface of the sponge.

Habitat

This sponge lives on rocky reefs and other hard surfaces from 10-12m.

References

1. "WoRMS - World Register of Marine Species - Biemna anisotoxa Lévi, 1963". www.marinespecies.org. Retrieved 25 November 2010.
2. ^ Samaai, T. and Gibbons, M.J. 2005. Demospongiae taxonomy and biodiversity of the Benguela region on the west coast of South Africa. Afr. Nat. Hist. 1(1):1-96
3. Jones, Georgina. A field guide to the marine animals of the Cape Peninsula. SURG, Cape Town, 2008. ISBN 978-0-620-41639-9

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