General Description
Colony of individual polyps (hydranths) joined by root-like network of tubular stolons at the base. Colony shape is single stems. Colour: colony white to yellow. Up to 15 mm high.
Biology
This species grows mainly in late winter to summer.
Distribution
Southern Australia (South Australia, Tasmania, Victoria, Western Australia).
Habitat
Subtidal, epiphytic on brown algae and epizoic on sponges, bryozoans and other benthic fauna.
More Information
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Animal Type
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Animal SubType
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Brief Id
Perisarc relatively thick, small stems on brown algae, nematophores on stems.
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Maximum Size
15 mm
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Habitats
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Diet
Plankton or Particles
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Diet Categories
Plankton
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Hazards
Generally not harmful but still able to sting bare skin.
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Endemicity
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Commercial
No
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Conservation Statuses
DSE Advisory List: Not listed, EPBC Act 1999: Not listed, IUCN Red List: Not listed
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Depths
Shallow (1-30 m)
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Water Column Locations
On or near seafloor
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Taxon Name
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Scientific Author
(Stechow, 1924)
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Common Name
Hydroid
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Phylum
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Class
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Subclass
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Order
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Family
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Genus
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Species Name
armatum
