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Oikopleura (Vexillaria) diocia

Fol (1872)

Download a afact sheet for Oikopleura (Vexillaria) dioica (PDF 321KB)


Phylum Chordata
Class Appendicularia
Order Copelata
Family Oikopleuridae
Genus Oikopleura (Vexillaria)
Species dioica


  • Body length (i.e. without the tail) 0.5 - 1.3 mm

Distinguishing characteristics

  • A small appendicularian
  • Trunkis ovoid
  • Tailis narrow, being 2-4 mm; the length of the@tail@is about four times the body length
  • The tail has a narrow tail muscle and two distinct, characteristic sub-chordal cells at about 1/2 to 2/3 down the length of the tail (well distinguishable even in unstained material)


  • The distribution in Australian includes
  • Worldwide distribution North and Central Atlantic Ocean, Mediterranean Sea, Red Sea, subtropical SW Atlantic Ocean, tropical Indian and West Pacific Oceans



  • Marine species identification portal (2011)