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.

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