Brain sponge

The brain sponge (Isodictya elastica) is a species of marine demosponge in the family Isodictyidae.[1] This sponge is known from the west coast of South Africa to Port Elizabeth. It is endemic to this region.[2]

Brain sponge
Scientific classification
Kingdom: Animalia
Phylum: Porifera
Class: Demospongiae
Order: Poecilosclerida
Family: Isodictyidae
Genus: Isodictya
Species:
I. elastica
Binomial name
Isodictya elastica
(Vosmaer, 1880)
Synonyms
  • Desmacidon elastica Vosmaer, 1880
  • Homoeodictya elastica (Vosmaer, 1880)

Description

The brain sponge may grow to 20 cm across. It has a smooth surface, covered with many scattered oscula. It may be beige to pink in colour and grows in two forms: one massive and convoluted, rather like a brain, and the other with narrowing fingers. Its texture is soft and compressible.[2][3]

Habitat

This sponge lives on rocky reefs subtidally to 25m.

References

  1. http://www.marinespecies.org/aphia.php?p=taxdetails&id=168455 accessed 19 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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