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
Southern Maalhosmadulu Atoll 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 banned catching turtles or taking eggs from Olhugiri, which also applies to 11 other islands. Southern Maalhosmadulu Atoll Southern Maalhosmadulu Atoll (code name Baa) is an administrative division of the Maldives. It consists of two separate natural atolls, namely the southern part of Maalhosmadulhu Atoll (which is 42 km long and 32 km wide and consists of 10 inhabited islands) and the smaller natural atoll known as Goifulhafehendhu Atoll (Horsburgh Atoll in the Admiralty