Pseudo-atoll Pseudo-atoll A pseudo-atoll, like an atoll, is an island that encircles a lagoon, either partially or completely. A pseudo-atoll differs from an atoll as established by several authorities, such as how it is formed (not by subsidence, nor by coral). It is considered a preferable term to "near-atoll". There is a need for rigorous definition of "pseudo-atoll" before it can be accepted as a general term. Alexander Agassiz gave the term pseudo-atoll to "any ring-shaped reefs not formed as a result of subsidence". while Norman D. Newell and J. Keith Rigby called such reefs non-coral. and "We conclude that almost-atoll
Baa Atoll Maldives, including large mangroves and a unique diversity of fauna, such as the benthic fauna. Furthermore, the ring-shaped reef forms known as "faru" in the Dhivehi language is a reef structure which is unique to the Maldives. The southernmost uninhabited island of Olhugiri in the North Maalhosmadulu Atoll lies 13 km north of Goifulhafehendhu Atoll. Olhugiri is well known for its unique natural vegetation and for providing two of the only perching sites for the great frigatebird in the Maldives. Likewise, other marine creatures such as seaturtles and hawksbill turtles can be encountered. The Fisheries Ministry of the Maldives has