Echiuroidea

Ech`i`u`roi´de`a

n. pl.

(Zool.) A division of Annelida which includes the genus Echiurus and allies. They are often classed among the Gephyrea, and called the armed Gephyreans.

Echiuroidea

[‚ek·ē·yə′rȯid·ē·ə] (invertebrate zoology) A phylum of schizocoelous animals.

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