Free -living, pelagic in warm.
Solitary or colonial
Body shape are variable.
Tunic permanent, thin and transparent,having muscle bands.
Atriopore located posteriorly..
Pharynx with 2 large or many gill-slits.
Sexes united.
Larva formed or abesent.
Adult is without notochord.
Asexual budding.
Life history with an alteration of generation.
Solitary or colonial
Body shape are variable.
Tunic permanent, thin and transparent,having muscle bands.
Atriopore located posteriorly..
Pharynx with 2 large or many gill-slits.
Sexes united.
Larva formed or abesent.
Adult is without notochord.
Asexual budding.
Life history with an alteration of generation.
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