New Taxa and Occurrences of Mesophotic and Deep-sea Goniasteridae (Valvatida, Asteroidea) from Okinawa and adjacent regions Author Mah, Christopher L. 0000-0002-0178-8237 Department of Invertebrate Zoology, National Museum of Natural History, Smithsonian Institution, Washington, D. C. USA Author Kogure, Yoichi 0009-0009-9935-8208 Fisheries Resources Institute, Japan Fisheries Research and Education Agency, 1 - 5939 - 22 Suido-cho, Chuo, Niigata, Niigata 951 - 8121, Japan kogure_yoichi52@fra.go.jp Author Fujita, Toshihiko 0000-0003-0334-1794 Department of Zoology, National Museum of Nature and Science, 4 - 1 - 1 Amakubo, Tsukuba, Ibaraki 305 - 0005, Japan fujita@kahaku.go.jp Author Higashiji, Takuo 0009-0004-2557-0023 Okinawa Churaumi Aquarium, 424 Ishikawa, Motobu, Okinawa 905 - 0206, Japan t-higashiji@okichura.jp text Zootaxa 2024 2024-01-18 5403 1 1 41 http://dx.doi.org/10.11646/zootaxa.5403.1.1 journal article 10.11646/zootaxa.5403.1.1 1175-5326 10561570 A9E9D993-74C3-49CC-9202-DB1132EEF113 Neoferdina longibrachia Kogure & Fujita 2012 Kogure & Fujita 2012: 252 ; Mah 2017: 54 Diagnosis Long, narrow arms; R/r exceeding 5.0. Size of superomarginal plates decreasing gradually from arm base to tip. At arm base, 3 regular longitudinal series of abactinal plates between superomarginals. Marginal plates, except for 1st inferomarginal plate, having central bare smooth surface surrounded by fine granules. Abactinal, actinal, adambulacral plates completely covered with granules. Adambulacral armature consisting of 3 short, thick, blunt furrow spines. Single papula, counting 2–4 around abactinal plate at arm base. (Based on Kogure & Fujita 2012 ). FIGURE 11. Neoferdina antigorum (Ferdininae) USNM E 45964. A. Abactinal view. B. Abactinal surface. C. Lateral view of marginal plates. D. Actinal view. E. A ctinal surface over oral region. Scale bars: A, D=2.0 mm, B–C, E=1.0 mm. Comments This species was described by Kogure & Fujita (2012) from Kumejima Island (southwest Japan ) from relatively 151–160 m depth. Subsequently collected specimens displaying similar characters have been reported from the Philippines suggesting syonymy of this species with Neoferdina insolita . Occurrence Kumejima Island, southwest Japan , 151– 160 m . Outside Japan .?Balut Island, Philippines , 80–150 m No Material Examined