Azooxanthellate Scleractinia (Cnidaria, Anthozoa) from South Africa Author Filander, Zoleka N. https://orcid.org/0000-0002-6905-4440 Biodiversity and Coastal Research, Oceans and Coasts, Department of Environment, Forestry, and Fisheries, Cape Town, South Africa & Zoology Department, Nelson Mandela University, Port Elizabeth, South Africa zfilander@gmail.com Author Kitahara, Marcelo V. Universidade Federal de Sao Paulo, Departamento de Ciencias do Mar, Santos, Brazil & Centro de Biologia Marinha, Universidade de Sao Paulo, Sao Sebastiao, Brazil Author Cairns, Stephen D. Department of Invertebrate Zoology, Smithsonian Institution, Washington DC, USA Author Sink, Kerry J. South African National Biodiversity Institute, Cape Town, South Africa & Institute for Coastal and Marine Research, Nelson Mandela University, Port Elizabeth, South Africa Author Lombard, Amanda T. Institute for Coastal and Marine Research, Nelson Mandela University, Port Elizabeth, South Africa text ZooKeys 2021 2021-10-28 1066 1 198 http://dx.doi.org/10.3897/zookeys.1066.69697 journal article http://dx.doi.org/10.3897/zookeys.1066.69697 1313-2970-1066-1 133CE040A5AF44F1BC9A558C2F06A8AA BD84F4C3157550C9B64120B2BE53F01A Deltocyathoides Yabe & Eguchi, 1932 Diagnosis. Corallum bowl-shaped, with rounded base, and calice circular in cross section; transverse division absent. Costae ridged and serrate; intercostal regions deep, narrow, and not pitted. Higher cycle costae (C3-4) originate by bi- or trifurcation. Septa hexamerally arranged in four complete cycles. Sub-lamellar to styliform pali before all but last cycles of septa. Columella papillose. Type species. Deltocyathoides japonicus Yabe & Eguchi, 1932a (junior synonym of Deltocyathus orientalis Duncan, 1876, which is the type of Paradeltocyathus by original designation) ( Cairns 1997 ).