Deltocyathus Milne-Edwards & Haime, 1848

Diagnosis.

Solitary, discoidal to patellate, usually free. Septotheca costate. Septa arranged in 4-5 cycles, only S1 being independent. Pali before all but last cycle. Axial margins of higher cycle pali join to faces of adjacent septa (deltas). Columella papillose.

Type species.

Turbinolia italica Michelotti, 1838, by monotypy. 181