Genus Haimeicyclus Alloiteau, 1957

Type species: Montlivaltia haimei Chapuis and Dewalque, 1853, by original designation.

Species assigned: Haimeicyclus haimei Chapuis and Dewalque, 1853; H. guettardi de Blainville, 1830; H. papillatus Duncan, 1867; H. hibernicus Duncan, 1867 .

Diagnosis (emended).—Solitary, discoidal to slightly cylindrical stylophyllid. Septal spines embedded in stereome and form compact septa. Epitheca developed on the entire corallum basis.