Masanori Okanishi

Masanori Okanishi, Japanese echinodermologist

• Faculty of Science, Biological Sciences Course, Ibaraki University, 2-1-1 Bunkyo, Mito, Ibaraki, Japan

Taxon names authored

(List may be incomplete)

• 21 taxon names authored by Masanori Okanishi

Publications

(List may be incomplete)

2009

• Fujita, T., Iwasaki, U., Okanishi, M. 2009. Ophiuroids (Echinodermata) of Genus Ophiura Collected from Deep Waters off Pacific Coast of Northern Japan. National Museum of Nature and Science Monographs. 39: 619–653. PDF Reference page. 
• Okanishi, M., Fujita, T. 2009. A New Species of Asteroschema (Echinodermata: Ophiuroidea: Asteroschematidae) from Southwestern Japan. Species Diversity. 14(2): 115–129. PDF Reference page. 

2011

• Okanishi, M., O’Hara, T.D. & Fujita, T. 2011. A new genus Squamophis of Asteroschematidae (Echinodermata, Ophiuroidea, Euryalida) from Australia. ZooKeys 129: 1–15. DOI: 10.3897/zookeys.129.1202 . Reference page. 
• Okanishi, M., O’Hara, T.D. & Fujita, T. 2011. Molecular phylogeny of the order Euryalida (Echinodermata: Ophiuroidea), based on mitochondrial and nuclear ribosomal genes. Molecular Phylogenetics and Evolution 61(2): 392–399. DOI: 10.1016/j.ympev.2011.07.003 Reference page. 
• Okanishi, M., Fujita, T. 2011. Two new species of the subgenus Asteroporpa (Asteromoana) (Ophiuroidea: Euryalida: Gorgonocephalidae) from Japan. Zootaxa. 2751: 25–39. DOI: 10.11646/zootaxa.2751.1.2 Reference page. 
• Okanishi, M., Fujita, T. 2011. A taxonomic review of the genus Astrocharis Koehler (Echinodermata: Ophiuroidea: Asteroschematidae), with a description of a new species. Zoological Science. 28(2): 148–157. DOI: 10.2108/zsj.28.148 Reference page. 

2013

• Okanishi, M. & Fujita, T. 2013. Molecular phylogeny based on increased number of species and genes revealed more robust family-level systematics of the order Euryalida (Echinodermata: Ophiuroidea). Molecular Phylogenetics and Evolution 69(3): 566–580. DOI: 10.1016/j.ympev.2013.07.021 Reference page. 
• Okanishi, M., Olbers, J.M., Fujita, T. 2013. A taxonomic review of the genus Asteromorpha Lütken (Echinodermata: Ophiuroidea: Euryalidae). The Raffles Bulletin of Zoology 61(2): 461–480. ResearchGate Internet Archive Reference page. 

2014

• Okanishi, M.; Fujita, T. 2014: A taxonomic review of the genus Asterostegus (Echinodermata: Ophiuroidea), with the description of a new species. European journal of taxonomy, (76) DOI: 10.5852/ejt.2014.76 Reference page. 
• Okanishi, M.; Fujita, T. 2014: A taxonomic review of the genus Asterostegus (Echinodermata: Ophiuroidea), with the description of a new species - Corrigendum. European journal of taxonomy, (84) DOI: 10.5852/ejt.2014.84 Reference page. 
• Okanishi, M., Fujita, T. 2014. A taxonomic review of the genus Astrodia (Echinodermata: Ophiuroidea: Asteronychidae). Journal of the Marine Biological Association of the United Kingdom. 90(2): 133-146. DOI: 10.1017/S0025315413001331 ResearchGate Reference page. 
• Okanishi, M., Moritaki, T., Fujita, T. 2014. Redescription of an Euryalid Brittle Star, Astroceras coniunctum (Echinodermata, Ophiuroidea, Euryalida). Bulletin of the National Museum of Nature and Science. Series A (Zoology). 40(3): 133–139. Internet Archive Reference page. 

2015

• Nakano, H. et al. 2015. JAMBIO Coastal Organism Joint Surveys reveals undiscovered biodiversity around Sagami Bay. Regional Studies in Marine Science. 2: 77–81. DOI: 10.1016/j.rsma.2015.05.003

2016

• Okanishi, M. et al. 2016. Marine benthic community in Shirahama, southwestern Kii Peninsula, central Japan. Publications of the Seto Marine Biological Laboratory. 44: 7–52. DOI: 10.5134/217458

2017

• Okanishi, M. 2017. A taxonomic review of the genus Astrohelix Döderlein, 1930 including the synonymy of the subgenus Asteroporpa (Astromoana) Baker, 1980 to Astrohelix. Zootaxa 4227(4): 443–453. DOI: 10.11646/zootaxa.4227.4.4. Reference page. 
• Okanishi, M., Fujita, T., Maekawa, Y. & Sasaki, T. 2017. Non-destructive morphological observations of the fleshy brittle star, Asteronyx loveni using micro-computed tomography (Echinodermata, Ophiuroidea, Euryalida). ZooKeys 663: 1–19. DOI: 10.3897/zookeys.663.11413. Reference page. 
• Okanishi, M. 2017. Ophiuroidea (Echinodermata): Systematics and Japanese Fauna. In: Motokawa, M., Kajihara, H. (eds) Species Diversity of Animals in Japan. Diversity and Commonality in Animals. Springer, Tokyo. DOI: 10.1007/978-4-431-56432-4_25

2018

• Baker, A.N., Okanishi, M. & Pawson, D.L. 2018. Euryalid brittle stars from the International Indian Ocean Expedition 1963–64 (Echinodermata: Ophiuroidea: Euryalida). Zootaxa 4392(1): 1–27. DOI: 10.11646/zootaxa.4392.1.1. Full article (PDF) Reference page. 
• Okanishi, M. & Fujita, Y. 2018. First finding of anchialine and submarine cave dwelling brittle stars from the Pacific Ocean, with descriptions of new species of Ophiolepis and Ophiozonella (Echinodermata: Ophiuroidea: Amphilepidida). Zootaxa 4377(1): 1–20. DOI: 10.11646/zootaxa.4377.1.1 Reference page. 
• Okanishi, M. & Fujita, T. 2018. A taxonomic review of the genus Astrodendrum (Echinodermata, Ophiuroidea, Euryalida, Gorgonocephalidae) with description of a new species from Japan. Zootaxa 4392(2): 289–310. DOI: 10.11646/zootaxa.4392.2.4 Reference page. 
• Okanishi, M., Sentoku, A., Martynov, A., Fujita, T. 2018. A new cryptic species of Asteronyx Müller and Troschel, 1842 (Echinodermata: Ophiuroidea), based on molecular phylogeny and morphology, from off Pacific Coast of Japan. Zoologischer Anzeiger. 274: 14-33. DOI: 10.1016/j.jcz.2018.03.001 Reference page. 
• Okanishi, M., Fujita, Y. 2018. A new species of Ophioconis (Echinodermata: Ophiuroidea) from Ryukyu Islands, southwestern Japan. Proceedings of the Biological Society of Washington. 131(1): 163–174. DOI: 10.2988/18-00001 Reference page. 

2019

• Hayashi, R., Okanishi, M. 2019. The widely occurring brittlestar Ophiactis savignyi (Amphilepidida: Ophiactidae) as an epibiont on loggerhead sea turtle, Caretta caretta. Zootaxa. 4695(5): 497–500. DOI: 10.11646/zootaxa.4695.5.7 Reference page. 
• Okanishi, M., Oba, Y., Fujita, Y. 2019. Brittle stars from a submarine cave of Christmas Island, northwestern Australia, with description of a new bioluminescent species Ophiopsila xmasilluminans (Echinodermata: Ophiuroidea) and notes on its behaviour. The Raffles Bulletin of Zoology. 67: 421–439. DOI: 10.26107/RBZ-2019-0034 Reference page. 
• Okanishi, M., Ishida, Y., Mitsui, S. 2019. Fossil Gorgonocephalid Basket Stars (Echinodermata: Ophiuroidea: Euryalida) from the Middle Pleistocene of Japan; the First Record from the Indo-Pacific Region. Paleontological Research. 23(3): 179–185. DOI: 10.2517/2018PR017 Reference page. 
• Okanishi, M. & Fujita, Y. 2019. A comprehensive taxonomic list of brittle stars (Echinodermata: Ophiuroidea) from submarine caves of the Ryukyu Islands, southwestern Japan, with a description of a rare species, Dougaloplus echinatus (Amphiuridae). Zootaxa. 4571(1): 73–98. DOI: 10.11646/zootaxa.4571.1.5 Reference page. 

2020

• Okanishi, M., Kohtsuka, H., Fujita, T. 2020. A taxonomic review of the genus Astrocladus (Echinodermata, Ophiuroidea, Euryalida, Gorgonocephalidae) from Japanese coastal waters. PeerJ. 8:e9836. DOI: 10.7717/peerj.9836 Reference page. 
• Okanishi, M., Mah, C. 2020. Overlooked biodiversity from museum collections: four new species and one new genus of Ophiuroidea (Echinodermata) from Antarctica and adjacent regions with notes on multi-armed ophiuroids. Marine Biodiversity. 50(64). DOI: 10.1007/s12526-020-01080-w Reference page. 
• Oikawa, S., Matsui, Y., Oguro, M., Okanishi, M., Tanabe, R., Tanaka, T., Togashi, A. & Itagaki, T. 2020. Species-specific nitrogen resorption proficiency in legumes and nonlegumes. Journal of Plant Research. 133: 639–648. DOI: 10.1007/s10265-020-01211-1
• Okanishi, M., Kato, M., Watanabe, H.K., Chen, C., Fujita, T. 2020. Large populations of two new species of Ophiambix (Echinodermata, Ophiuroidea) discovered on Japanese hot vents and cold seeps. The Raffles Bulletin of Zoology. 68: 196–213. DOI: 10.26107/RBZ-2020-0017 Reference page. 
• Okanishi, M., Fujii, T. 2020. A New Record of Brittle Star Ophiopsila cf. polyacantha (Echinodermata: Ophiuroidea) from Southwestern Japan, with Notes on its Bioluminescence. Species Diversity. 25(2): 283–294. DOI: 10.12782/SPECDIV.25.283 Reference page. 
• Okanishi, M., Kohtsuka, H., Miura, T. 2020. Morphogenesis and histogenesis during the arm regeneration in a basket star Astrocladus dofleini (Euryalida, Ophiuroidea, Echinodermata). Journal of morphology. 282(2): 205–216. DOI: 10.1002/jmor.21296

2021

• Okanishi, M., Nakamura, M., Tamura, H., Kohtsuka, H. 2021. Redescription of Amphipholis kochii (Echinodermata: Ophiuroidea: Ophintegrida) collected from Sagami Bay, including ossicle morphology and COI sequence. Bulletin of the Kitakyushu Museum of Natural History and Human History, Series A (Natural History). 19: 41–51. DOI: 10.34522/kmnh.19.0_41 Reference page. 
• Okanishi, M., Kohtsuka, H. 2021. Description of a New Brooding Species of Ophiodelos (Echinodermata: Ophiuroidea) from Japan. Zoological Science. 38(4): 352–358. DOI: 10.2108/zs200101 Reference page. 
• Kohtsuka, H., Okanishi, M. 2021. Morphological changes associated with the growth of feather star Clarkcomanthus exilis (Echinodermata, Crinoidea). Biogeography. 23: 67–73. DOI: 10.11358/biogeo.23.67 Reference page. 

2022

• Okanishi, M., Mitsui, S., Thuy, B. 2022. Fossil Lateral Arm Plates of Stegophiura sladeni (Echinodermata: Ophiuroidea: Ophiurida) from the Middle Pleistocene of Japan. Paleontological Research. 26(2): 131–136. DOI: 10.2517/PR200039 Reference page. 

2023

• Okanishi, M., Dan, I., Hirabayashi, I. 2023. The First Record of Ophioteichus multispinum (Echinodermata: Ophiuroidea) from Japan, with Notes on Its Ossicle Description and Ecology. Species Diversity. 28(1): 107–116. DOI: 10.12782/specdiv.28.107 Reference page.