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Link to original content: http://en.wikipedia.org/wiki/Ikeda_(annelid)
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Ikedidae

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Ikedidae
Ikeda sp., marine worm. Port Phillip, Victoria.
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Annelida
Clade: Pleistoannelida
Clade: Sedentaria
Subclass: Echiura
Order: Echiuroidea
Suborder: Bonelliida
Family: Ikedidae
Bock, 1942[2]
Genus: Ikeda
Wharton, 1913[1]
Species

Ikedidae is a family of spoon worms in the suborder Bonelliida. It is a monotypic family, the only genus being Ikeda. These worms burrow into soft sediment on the seabed.

Examination of the original material of Ikeda taenoides by Teruaki Nishikawa in 2002 showed that the longitudinal muscle layer lay between the circular layer and the oblique layer, as in all other echiurans, throwing the validity of the family Ikedidae into doubt. Nishikawa advocates that the family be regarded as a junior synonym of Echiuridae.[3]

Species

[edit]

The World Register of Marine Species recognises the following species in the genus:-[1]

References

[edit]
  1. ^ a b Tanaka, Masaatsu (2017). "Ikeda Wharton, 1913". WoRMS. World Register of Marine Species. Retrieved 19 February 2019.
  2. ^ Tanaka, Masaatsu (2017). "Ikedidae Bock, 1942". WoRMS. World Register of Marine Species. Retrieved 19 February 2019.
  3. ^ Nishikawa, Teruaki (2002). "Comments on the taxonomic status of Ikeda taenioides with some amendments in the classification of the phylum Echiura". Zoological Science. 19 (10): 1175–1180. doi:10.2108/zsj.19.1175.