PORT PHILLIP BAY


Hydroid 

Ralpharia magnifica Watson, 1980

View scientific description and taxonomy

Scientific Details

See below for information.

Taxonomy

Phylum:
Cnidaria
Class:
Hydrozoa
Subclass:
Anthoathecatae
Order:
Capitata
Family:
Tubulariidae
Genus:
Ralpharia
Species:
magnifica

General Description

Flower-like with up to 40 tentacles radiating from the head (hydranth). Stem up to 10 cm long.

Biology

This species is the largest hydroid in Australian waters. They usually form small groups of well separated individuals.

Habitat

Sheltered areas of oceans and bays.

Reefs

Species Group

Hydroids

Depth

Shallow (1-30 m)

Water Column

On or near sea floor

Max Size

10 cm

Diet

Plankton or Particles

Harmful

Generally not harmful but still able to sting bare skin.

Commercial Species

No

Identify

Conservation Status

  • DSE Advisory List : Not listed
  • EPBC Act 1999 : Not listed
  • IUCN Red List : Not listed

Author

article author Watson, J.

Jan Watson is a consultant with expertise in hydroid taxonomy.

citation

Cite this page as:
Watson, J., 2011, Hydroid, Ralpharia magnifica, in Taxonomic Toolkit for marine life of Port Phillip Bay, Museum Victoria, accessed 25 Mar 2017, http://portphillipmarinelife.net.au:8098/species/4065

Text: creative commons cc by licence