Ceriantharia (Cnidaria) of the World: an annotated catalogue and key to species Author Stampar, Sergio N. Universidade Estadual Paulista (UNESP), FCL / Assis, Laboratorio de Evolucao e Diversidade Aquatica; LEDA, Departamento de Ciencias Biologicas, Assis, Brazil & Universidade Estadual Paulista (UNESP), Departamento de Zoologia, Instituto de Biociencias, Botucatu, SP, Brazil https://orcid.org/0000-0002-9782-1619 sergiostampar@gmail.com Author Reimer, James D. University of The Ryukyus, Faculty of Science, Department of Biology, Chemistry, and Marine Science, MISE (Molecular Invertebrate Systematics and Ecology) Laboratory, Okinawa, Japan & University of The Ryukyus, Tropical Biosphere Research Center, Okinawa, Japan https://orcid.org/0000-0003-0453-8804 Author Maronna, Maximiliano M. Universidade de Sao Paulo (USP), Instituto de Biociencias, Sao Paulo, SP, Brazil https://orcid.org/0000-0002-2590-639X Author Lopes, Celine S. S. Universidade Estadual Paulista (UNESP), FCL / Assis, Laboratorio de Evolucao e Diversidade Aquatica; LEDA, Departamento de Ciencias Biologicas, Assis, Brazil & Universidade Estadual Paulista (UNESP), Departamento de Zoologia, Instituto de Biociencias, Botucatu, SP, Brazil Author Ceriello, Hellen Universidade Estadual Paulista (UNESP), FCL / Assis, Laboratorio de Evolucao e Diversidade Aquatica; LEDA, Departamento de Ciencias Biologicas, Assis, Brazil & Universidade Estadual Paulista (UNESP), Departamento de Zoologia, Instituto de Biociencias, Botucatu, SP, Brazil https://orcid.org/0000-0003-1199-2773 Author Santos, Thais B. Universidade Estadual Paulista (UNESP), FCL / Assis, Laboratorio de Evolucao e Diversidade Aquatica; LEDA, Departamento de Ciencias Biologicas, Assis, Brazil & University of The Ryukyus, Faculty of Science, Department of Biology, Chemistry, and Marine Science, MISE (Molecular Invertebrate Systematics and Ecology) Laboratory, Okinawa, Japan Author Acuna, Fabian H. Instituto de Investigaciones Marinas y Costeras (Iimyc) CONICET; Facultad De Ciencias Exactas y Naturales Universidad Nacional de Mar Del Plata Funes 3250. 7600 Mar Del Plata, Argentina & Estacion Cientifica Coiba (Coiba-Aip), Clayton, Panama, Republica de Panama Author Morandini, Andre C. Universidade de Sao Paulo (USP), Instituto de Biociencias, Sao Paulo, SP, Brazil & Universidade de Sao Paulo (USP), Centro de Biologia Marinha, Sao Sebastiao, SP, Brazil https://orcid.org/0000-0003-3747-8748 text ZooKeys 2020 952 1 63 http://dx.doi.org/10.3897/zookeys.952.50617 journal article http://dx.doi.org/10.3897/zookeys.952.50617 1313-2970-952-1 961036180C3A4DE9BCC19AE0A824B9D8 4DD4C3F03B1C546FA3471BEC6C4CE3E9 51 Isarachnanthus bandanensis Carlgren, 1924 Isarachnanthus bandanensis Carlgren, 1924: 187-190, 195; Cutress 1977 : 145; den Hartog 1977 : 235; Cutress and Arneson 1987 : 54, 56-58; den Hartog 1997 : 352; Stampar et al. 2012 : 1-2, 5-9. Type locality. Neira, Banda Island, Indonesia. Distribution. Indonesia, French Polynesia, and Hawaii (USA), shallow waters. Remarks. This species was described based on two specimens from the Banda Islands, Indonesia. The diagram of mesenteries, part of cnidome, and tentacle organization are present in the original description, however, there are some evident similarities in relation to Isarachnanthus panamensis . Furthermore, unpublished molecular data indicate similarity between these two species and studies on this clade should be prioritized. Type material. Zoological Museum of Amsterdam (now Naturalis Biodiversity Center, Leiden) - (ZMA.COEL.000209 - Lectotype/ ZMA.COEL.000210 - Paralectotype).