Polymastia umbraculum

Polymastia umbraculum
Scientific classification
Kingdom:	Animalia
Phylum:	Porifera
Class:	Demospongiae
Order:	Polymastiida
Family:	Polymastiidae
Genus:	Polymastia
Species:	P. umbraculum
Binomial name
	Polymastia umbraculum; & Bergquist, 1997

Polymastia umbraculum is a species of sea sponge belonging to the family Polymastiidae. It is only known from rocky subtidal habitats around Kawau Island off the North Island of New Zealand.

This is a thickly encrusting sponge with a very firm texture, growing in loosely attached patches up to 7 cm across. The granular outer layer is brilliant yellow-orange with a rather darker interior carrying many symbiont foraminifera. It is often infested with the parasitic amphipod .

References[]

Michelle Kelly-Borges & Patricia R. Bergquist (1997). "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" (PDF). . 31 (3): 367–402. doi:10.1080/00288330.1997.9516772.^{[permanent dead link]}

This article about a demosponge is a stub. You can help Wikipedia by .