aboral

Ommatostrephes, fins aboral, simple and rhomboidal, British.

The five radial nerves converge at the five ocular areas near the center of the aboral region.

After the nerve turns to run on the aboral side there is no change in arrangement until the region of the tube feet is reached.

Camera lucida drawing of a part of an aboral nerve showing position of cell areas.

Entocolax, mouth at free extremity, animal fixed by aboral orifice of pseudopallium, Pacific.