''Clathria dayi'', the broad-bladed tree sponge, is a
species
In biology, a species is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate s ...
of
demosponge
Demosponges (Demospongiae) are the most diverse class in the phylum Porifera. They include 76.2% of all species of sponges with nearly 8,800 species worldwide (World Porifera Database). They are sponges with a soft body that covers a har ...
.
[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] It is known from the west coast of South Africa and around Cape Point to False Bay. It is probably
endemic
Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found elsew ...
to this region.
Description
The broad-bladed tree sponge may grow to 20 cm in height and be 2–4 cm thick. It is a massive erect sponge, having broad flat blades extending from a small stalk. It has a slightly hairy texture, but is smooth in appearance. It is bright red in colour.
[Jones, Georgina. ''A field guide to the marine animals of the Cape Peninsula.'' SURG, Cape Town, 2008. ]
Habitat
This sponge lives on rocky reefs in 15-272m of water.
References
Poecilosclerida
Sponges described in 1963
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