Members of this genus build an open aggregation of numerous smooth tiny branching tubes that form a lace-like irregular network over the substrate. An operculum is absent, as is a radiolar membrane. Currently only a single species in southern Australia, Salmacina australis, is recognised with these characters. Tubes up to about 5 cm long, diameter 1 mm or less.
Salmacina species are able to reproduce asexually, by budding off new individuals.
Hard surfaces such as ship hulls and rocky substrates, intertidal to continental shelf depths
Northern and southern Australia.
Recorded in Australia
- DSE Advisory List : Not listed
- EPBC Act 1999 : Not listed
- IUCN Red List : Not listed