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Planctosphaera

From Wikipedia, the free encyclopedia

Planctosphaera
Scientific classification
Kingdom:
Animalia
Phylum:
Hemichordata
Class:
Planctosphaeroidea
Genus:
Planctosphaera
Species:
P. pelagica
Binomial name
Planctosphaera pelagica
Spengel, 1932

Planctosphaera pelagica is a hemichordate and the only known representative of the class Planctosphaeroidea.

The species is known only by its free swimming larvae. The larvae are tornaria larvae similar to those of the closely related Enteropneusta, which possess a ciliated band to capture food particles. Planctosphaera pelagica is unique in possessing mucus secreting glands around the ciliated band. Possible uses of the mucus glands include assisting in feeding or deterring predators and parasites. Planctosphaera pelagica larvae are also larger than enteropneust larvae. It is due to the mucus glands and size difference they are usually given their own class.[1]

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  • PHYLUM – HEMICHORDATA

Transcription

References

  1. ^ Hart, M.W.; R.L. Miller; L.P.Madin (November 1994). "Form and feeding mechanism of a living Planctosphaera pelagica (phylum Hemichordata)". Marine Biology. 120 (4): 521–533. doi:10.1007/BF00350072. S2CID 83621038.


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This page was last edited on 10 December 2023, at 01:30
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