Diadema setosum
©Anne Hoggett: Poor photo of Diadema setosum at lagoon bommie, Lizard Island in a Porites coral. Enlarge the image to see the orange ring around the anus.
Kingdom
Animalia
Phylum
Echinodermata
Class
Echinoidea
Order
Diadematoida
Family
Diadematidae
Genus
Diadema
Species
Diadema setosum
Colours
Distinguishing features
Black with very long needle-like spines. A red or orange ring around the anus.
Size
- Up to 8 cm (test diameter)
- Up to 30 cm (spine length)
Depth range
- Depth range data is not yet available.
Synonyms
Similar taxa
-
Animalia:
species: Diadema savignyi
lacks an orange ring around the anal cone
Distribution
©Atlas of Living Australia: Australian distribution
Local abundance
- Lizard Island: Much less common than its congener Diadema savignyi
Behaviour
Nocturnal, well-hidden during the day.
Web resources
References
References that assist with identification
- Clark, A.M. and F.W.E. Rowe (1971). Monograph of shallow-water Indo-west Pacific echinoderms British Museum (Natural History), London.
- Miskelly, A. (2002). Sea Urchins of Australia and the Indo-Pacific 180 pp. Capricornia Publications, Sydney, Australia.
Other references
- Mirams, A.G.K., E.A. Treml, J.L. Shields, L. Liggins and C. Riginos (2011). Vicariance and dispersal across an intermittent barrier: population genetic structure of marine animals across the Torres Strait land bridge. Coral Reefs, 30: 937-949. LIRS catalog number 1482.
- View all references