biradial

The cleavage of bryozoan eggs is biradial, in other words the early stages are bilaterally symmetrical.

Biradial symmetry is a combination of radial and bilateral symmetry, as in the Ctenophores.

Ctenophores show biradial symmetry.

As a result, septa of different ages are adjacent to one another, and the symmetry of the scleractinian skeleton is radial or biradial.

Ctenophores exhibit biradial or rotational symmetry, defined by tentacular and pharyngeal axes, on which two anal canals are located in two diametrically opposed quadrants.