psammocorids 11 Mariana Islands species AllMariana IslandsIndo-Pacificadditional imagesPsammocora columnaPsammocora columnaPsammocora columnaPsammocora columnaPsammocora columna?Psammocora columna?Psammocora contiguaPsammocora contiguaPsammocora haimianaPsammocora haimianaPsammocora haimianaPsammocora haimianaPsammocora nierstrasziPsammocora nierstrasziPsammocora nierstrasziPsammocora nierstrasziPsammocora obtusangula sensu RandallPsammocora profundacellaPsammocora profundacellaPsammocora profundacellaPsammocora sp. 1Psammocora sp. 1Psammocora sp. APsammocora sp. APsammocora sp. APsammocora sp. APsammocora sp. APsammocora sp. APsammocora sp. BPsammocora sp. BPsammocora stellataPsammocora superficiales sensu Randall