interradial

These latter are therefore, as their name implies, radial in position; while the basals and orals are interradial.

Cunina (fig. 66) with more than eight tentacles; Cunoctantha with eight tentacles, four perradial, four interradial.

All rings of the disk concentric, of nearly equal breadth, connected by four interradial beams, perpendicular one to another.

Three gates of the cortical shell roundish, on the inside with an interradial spine, little broader than the quadrangular arms.

From the inside of the same ring (probably on the side of the six ascending interradial beams) spring six centripetal teeth.