Aporometra
Aporometra wilsoni showing arms and cirri
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Echinodermata
Class: Crinoidea
Order: Comatulida
Superfamily: Notocrinoidea
Family: Aporometridae
HL Clark, 1938[1]
Genus: Aporometra
HL Clark, 1938[2]

Aporometridae is a monotypic family of crinoids, the only genus being Aporometra,[1] which contains three species, all endemic to the seas around Australia.[3]

Description

Members of this family have five arms which subdivide near the base giving them ten arms in total. The arms can reach 30 mm (1.2 in) in length and at the base of the calyx there are up to 25 cirri, often longer than the arms. Unique among Comatulida, the cirri are flattened on the underside. The gonads are located on the pinnules and not on the arms, and the embryos are brooded in cavities in the arms.[3]

Species

The World Register of Marine Species lists the following species in this genus:[2]

References

Wikimedia Commons has media related to Aporometra.
  1. 1 2 Messing, Charles (2019). "Aporometridae HL Clark, 1938". WoRMS. World Register of Marine Species. Retrieved 14 March 2019.
  2. 1 2 Messing, Charles (2019). "Aporometra HL Clark, 1938". WoRMS. World Register of Marine Species. Retrieved 14 March 2019.
  3. 1 2 O'Hara, Timothy; Byrne, Maria (2017). Australian Echinoderms: Biology, Ecology and Evolution. Csiro Publishing. pp. 214–216. ISBN 978-1-4863-0763-0.


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