“…At many Indoflat, more or less circular shape. At Enewetak, miPacific locations, the massive coral Porites lutea forms croatolls detached from the reef due to their relatively microatolls on intertidal reef flats (Dana, 1853; Scoffin small basal attachment and the activity of boring and Stoddart, 1978;Highsmith, 1980aHighsmith, , 1981. Low tides organisms, are transported by currents across the prevent upward growth of microatolls so live tissue is smooth reef flat to the edge of the lagoon where t h e~r restricted to the periphery of the colonies resulting in a growth is less restricted by low tides (Highsmith.…”