Rostanga muscula


Rostanga muscula is a species of sea slug, a dorid nudibranch, a marine gastropod mollusc in the family Discodorididae.

Distribution

This species is endemic to New Zealand.

Description

This dorid nudibranch is bright orange to reddish-orange, and the dorsum is covered with caryophyllidia; it is very similar to other species of Rostanga.

Ecology

This is a common intertidal species. It feeds on the red sponge, Microciona coccinea. It is also found to eat the introduced sponge, Ophlitaspongia seriata and the native ''Holoplocamium neozelanicum''