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→Fauna
Todate these inventories has only been made in shallow waters, so a further inventory in the outer reefs will reveal the true wealth of biodiversity of the coastal waters around the Masoala peninsula.<br><br>
=== Mollusca (Sea Snails and Slugs) ===
78 species of Gastropoda Prosobranchia were identified around Masoala, one of which is ''Drupella cornus'' ([[Horn drupe]]) - a species of sea snail. However, there is a significant rarity of some decorative species such as ''Charonia tritonis'' ([[Triton's trumpet]]), ''Chicoreus ramosus'' ([[Ramose murex]]) and ''Turbo marmoratus'' ([[Marbled turban]]).
20 species of bivalve and four species of cephalopod were inventoried within the three marine plots (Tanjona, Masoala and Tampolo).
In the group of echinoderms and arthropods, 16 species of sea urchins, starfish and brittle stars as well as 27 species of sea cucumbers were identified. The multiple-armed starfish ''Acanthaster planci'' ([[Crown-of-thorns starfish]]) was encountered only around Ambohomahery.<br><br>
== The best fauna most visible to tourists ==
