The order Zoantharia Rafinesque, 1815 (Cnidaria, Anthozoa: Hexacorallia): supraspecific classification and nomenclature Author Low, Martyn E. Y. Lee Kong Chian Museum of Natural History, National University of Singapore, 2 Conservatory Drive, Singapore 117377, Republic of Singapore & former address: Department of Marine and Environmental Sciences, Graduate School of Engineering and Science, University of the Ryukyus, 1 Senbaru, Nishihara, Okinawa 903 - 0213, Japan Author Sinniger, Frederic Tropical Biosphere Research Center, University of the Ryukyus, 3422 Sesoko, Motobu, Okinawa 905 - 0227, Japan Author Reimer, James Davis Molecular Invertebrate Systematics and Ecology (MISE) Laboratory, Department of Marine and Environmental Sciences, Graduate School of Engineering and Science, University of the Ryukyus, 1 Senbaru, Nishihara, Okinawa 903 - 0213, Japan; and Tropical Biosphere Research Center, University of the Ryukyus, 1 Senbaru, Nishihara, Okinawa 903 - 0213, Japan jreimer@sci.u-ryukyu.ac.jp text ZooKeys 2016 2016-12-14 641 1 80 http://dx.doi.org/10.3897/zookeys.641.10346 journal article http://dx.doi.org/10.3897/zookeys.641.10346 1313-2970-641-1 903D6413C8024864A662D71C50740E2D BB707A65FFDFFFFBFFFE8B61FFD5FF91 579464 Microzoanthus Fujii & Reimer, 2011 Microzoanthus Fujii & Reimer, 2011: 420, 421. Type species. Microzoanthus occultus Fujii & Reimer, 2011, by original designation. Gender. Masculine. Diagnosis. As for family ( Fujii and Reimer 2011 ). Encircling sinus present just beneath ectodermal surface ( Swain and Swain 2014 ). Remarks. Examined specimens with spindly-cteniform endodermal sphincter muscle ( Swain et al. 2015 ). Currently two species, reported only from the Pacific Ocean ( Fujii and Reimer 2013 ) and the Red Sea ( Reimer et al. 2014c ).