Axinella

Axinella is a genus of sponges in the family Axinellidae. Species of Axinella occur in the Indian and Pacific Oceans. Most of these sponges are smaller than 20 cm, and have a yellow or orange colour. == List of species == ...
Found on http://en.wikipedia.org/wiki/Axinella

Axinella

(from the article `sponge`) ...may live on the surface of a sponge or inside its canals and cavities. In some cases the associations are specific; e.g., the coral Parazoanthus ...
Found on http://www.britannica.com/eb/a-z/a/132
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