Psammocora albopicta sp. nov., a new species of Scleractinian coral from the Western Indo-Pacific (Scleractinia; Siderastreidae)

A new scleractinian coral species, Psammocora albopicta, is described. The species forms encrusting colonies which can attain large sizes and has very small corallites with a styliform columella. Calice and columella diameter, colline shape and corallite density on the skeleton surface are the morphological characters that separate the species from the other species in the genus. A high degree of variation in septa shape and ornamentation, as well as collines development can be found within the same specimen. Living colonies are dark brown to dark green and present white patterns on all, or part, of the surface. Type material was collected in the Arabian Gulf, additional specimens were collected in the Gulf of Aden, and the study of museum collections allows extension of the species distribution to the western Indo-Pacific