Antho primaAntho prima, or Antho prima also known as the orange fan sponge is a species of sponge belonging to the genus Antho found on the south coast of South Africa and the coast of New Zealand.DescriptionA. prima has a pale peach to dirty orange color and grows in a convoluted fan form that could reach a height of. Its surface is fuzzy and may be covered with a slimy mucus. The sponge is fragile and breaks easily.DistributionThe orange fan sponge can be found off of the south coast of South Africa and the coast of New Zealand. It is found at depths of.