Aiptasiidae with distinct base. Column smooth (or with minute papillae?), with cinclides typically in a horizontal zone near the middle of the body, which may be very long. Margin tentaculate. Sphincter weak, mesogloeal. Oral disc not lobed. Tentacles in more than 2 cycles, their longitudinal muscles ectodermal. They may be long, are not fully retractile, and are provided with spiral or incompletely annular raised band containing batteries of microbasic p-mastigophors and basitrichs, these bands may occur throughout the extent of the tentacle or near the tip only. Perfect mesenteries 6-8 pairs, fertile. Retractors diffuse, sometimes fairly restricted. Cnidom: spirocysts, basitrichs, microbasic p-mastigophors, microbasic amastigophors.
Actinia annulata Leseur 1817
B. werneri Watzl 1922
Aiptasia sp.? (tagetes) Pax 1910
Aiptasia lucida Pax 1910
Aiptasia peruviana Pax 1912
Definitions and contained taxa are those of Oscar Carlgren as published in 1949 : Kungl Svenska Vetenskapsakadamiens Handlingar, Series 4, Volume 1, Number 1
Electronic version made possible by NSF grant DEB95-21819 in the PEET program to D. G. Fautin.