species: Dorometra parvicirra in Lizard Island area: all known taxa (Lizard Island Field Guide)
Lizard Island area: all known taxa > Animalia > Echinodermata > Crinoidea > Antedonidae > Dorometra > Dorometra parvicirra (gallery)
Dorometra parvicirra


©Anne Hoggett: Dorometra parvicirra at North Point, Lizard Island, from under rubble.

©Anne Hoggett: Dorometra parvicirra at North Point, Lizard Island, from under rubble.

©Anne Hoggett: Dorometra parvicirra at North Point, Lizard Island, from under rubble.

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Kingdom Animalia
Phylum Echinodermata
Class Crinoidea
Order Comatulida
Family Antedonidae
Genus Dorometra
Species Dorometra parvicirra

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Lizard Island Field Guide
Lizard Island area: all known taxa

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Distinguishing features

Antedonids are small crinoids with ten very flexible arms up to about 60 mm long. Only two species are known from Lizard Island, Dorometra parvicirra and Dorometra nana.

Dorometra is distinguished from other antedonid genera by having cirrus segments that are flared at their distal ends, overlapping the next segment so they appear like a string of beads. Both species of Dorometra have about 40 delicate cirri. They are distinguished from each other by the relative sizes of the oral pinnules. This character is not useful in the field because it needs microscopic examination.

Size

  • Size data has not been obtained.

Depth range

  • Depth range data is not yet available.

Synonyms

Similar taxa

Distribution


©Atlas of Living Australia: Australian distribution

Distribution and habitat preferences

Always fully concealed. Messing (2006) records both species of Dorometra as part of an unusual soft-bottom fauna in 12 to 17 m depth off Osprey Island.

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.

Other references

  • Messing, C.G., D.L. Meyer, U.E. Siebeck, L.S. Jermiin, D.I. Vaney and G.W. Rouse (2006). A modern soft-bottom, shallow-water crinoid fauna (Echinodermata) from the Great Barrier Reef, Australia, Coral Reefs, 25: 164-168. LIRS catalog number 956.