Polymastia echinus

Taxobox
name = "Polymastia echinus"
regnum = Animalia
phylum = Porifera
classis = Demospongiae
ordo = Hadromerida
familia = Polymastiidae
genus = "Polymastia"
species = "P. echinus"
binomial = "Polymastia echinus"
binomial_authority = Kelly-Borges & Bergquist, 1997

"Polymastia echinus" is a species of demosponge belonging to the family Polymastiidae. It is only known from shallow subtidal habitats off Goat Island in the far north of North Island, New Zealand.

This is an encrusting sponge with an extraordinary appearance. The sponge is always largely covered in sand, grit and fragments of shells apart from smooth, cylindrical, peach-coloured papillae up to 15 mm in height which are always free of such material. The specific name refers to this rather hedgehog-like appearance.

References

*cite journal |quotes=no |url=http://www.rsnz.org/publish/nzjmfr/1997/32.pdf |title= Revision of Southwest Pacific Polymastiidae (Porifera: Demospongiae: Hadromerida) with descriptions of new species of "Polymastia" Bowerbank, "Tylexocladus" Topsent, and "Acanthopolymastia" gen. nov. from New Zealand and the Norfolk Ridge, New Caledonia |journal=New Zealand Journal of Marine and Freshwater Research |volume=31 |year=1997 |author=Michelle Kelly-Borges & Patricia R. Bergquist |pages=367–402