start-ver=1.4 cd-journal=joma no-vol=45 cd-vols= no-issue=1 article-no= start-page=58 end-page=73 dt-received= dt-revised= dt-accepted= dt-pub-year=2024 dt-pub=20241224 dt-online= en-article= kn-article= en-subject= kn-subject= en-title=コダマカワザンショウ属の八重山諸島産新種 (腹足綱: クビキレガイ上科: カワザンショウ科) — 同属で世界最北の現生種 kn-title=A new species of Ovassiminea Thiele, 1927 (Gastropoda: Truncatelloidea: Assimineidae) from the Yaeyama Islands, Okinawa, southern Japan — the northernmost record among recent species of the genus en-subtitle= kn-subtitle= en-abstract=沖縄県八重山諸島の西表島・石垣島から新種 Ovassiminea hayasei n. sp. ウラウチコダマカワザンショウを記載する。Ovassiminea Thiele, 1927 コダマカワザンショウ属は西太平洋の熱帯・亜熱帯に分布し, 本新種は同属中で世界最北の現生種である。本新種の産地は極端に狭い範囲に限られ, 沖縄県と環境省のレッドリストで絶滅危惧II類 (VU) とされている。なお文末の Appendix には, これまでに記載されたコダマカワザンショウ属全種 (現生5・化石5) の目録を, 異名表とともに挙げる。 kn-abstract=Ovassiminea hayasei n. sp. is described from mangrove swamps in Iriomote and Ishigaki Islands, of the Yaeyama Islands at the southwestern part of the Ryūkyū Archipelago, Okinawa, Japan. This is the northernmost record among recent species of the genus Ovassiminea Thiele, 1927, which is distributed in the tropical and subtropical regions of the Western Pacific. The new species is known to be restricted to extremely narrow ranges and is evaluated as vulnerable in red lists by the governments of Japan and Okinawa Prefecture. A list of all available (five recent and five fossil) species names of Ovassiminea hitherto described, with synonymies, is also given as an Appendix. en-copyright= kn-copyright= en-aut-name=FukudaHiroshi en-aut-sei=Fukuda en-aut-mei=Hiroshi kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=1 ORCID= en-aut-name=KuboHirofumi en-aut-sei=Kubo en-aut-mei=Hirofumi kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=2 ORCID= affil-num=1 en-affil=Conservation of Aquatic Biodiversity, Faculty of Agriculture, Okayama University kn-affil= affil-num=2 en-affil=Okinawa Prefectural Institute of Health and Environment kn-affil= en-keyword=anatomy kn-keyword=anatomy en-keyword=conservation kn-keyword=conservation en-keyword=description kn-keyword=description en-keyword=endangered species kn-keyword=endangered species en-keyword=estuary kn-keyword=estuary en-keyword=Iriomote Island kn-keyword=Iriomote Island en-keyword=Ishigaki Island kn-keyword=Ishigaki Island en-keyword=mangrove swamp kn-keyword=mangrove swamp en-keyword=salt marsh kn-keyword=salt marsh en-keyword=taxonomy kn-keyword=taxonomy END start-ver=1.4 cd-journal=joma no-vol=2015 cd-vols= no-issue= article-no= start-page= end-page= dt-received= dt-revised= dt-accepted= dt-pub-year=2017 dt-pub=20170310 dt-online= en-article= kn-article= en-subject= kn-subject= en-title=Bulletin of Archaeological Research Center Okayama University 2015 kn-title=岡山大学埋蔵文化財調査研究センター紀要2015 en-subtitle= kn-subtitle= en-abstract= kn-abstract= en-copyright= kn-copyright= en-aut-name=MinamiKentaro en-aut-sei=Minami en-aut-mei=Kentaro kn-aut-name=南健太郎 kn-aut-sei=南 kn-aut-mei=健太郎 aut-affil-num=1 ORCID= en-aut-name=YamaguchiYuji en-aut-sei=Yamaguchi en-aut-mei=Yuji kn-aut-name=山口雄治 kn-aut-sei=山口 kn-aut-mei=雄治 aut-affil-num=2 ORCID= en-aut-name=FukudaHiroshi en-aut-sei=Fukuda en-aut-mei=Hiroshi kn-aut-name=福田宏 kn-aut-sei=福田 kn-aut-mei=宏 aut-affil-num=3 ORCID= en-aut-name=NozakiTakahiro en-aut-sei=Nozaki en-aut-mei=Takahiro kn-aut-name=野崎貴博 kn-aut-sei=野崎 kn-aut-mei=貴博 aut-affil-num=4 ORCID= affil-num=1 en-affil=Archaeological Research Center, Okayama University kn-affil=岡山大学埋蔵文化財調査研究センター affil-num=2 en-affil= Archaeological Research Center, Okayama University kn-affil=岡山大学埋蔵文化財調査研究センター affil-num=3 en-affil=Graduate School of Environmental and Life Science, Okayama University kn-affil=岡山大学大学院 環境生命科学研究科 affil-num=4 en-affil=Archaeological Research Center, Okayama University kn-affil=岡山大学埋蔵文化財調査研究センター END start-ver=1.4 cd-journal=joma no-vol=9 cd-vols= no-issue=1 article-no= start-page=9 end-page=18 dt-received= dt-revised= dt-accepted= dt-pub-year=2002 dt-pub=20020920 dt-online= en-article= kn-article= en-subject= kn-subject= en-title=Sedimentary environments of mangrove swamp in the Funaura Bay, Iriomote Island, Okinawa Prefecture, Southwest Japan kn-title=西表島船浦湾におけるマングローブ干潟の堆積環境　―堆積物と生物遺骸の保存状況について― en-subtitle= kn-subtitle= en-abstract= kn-abstract=The distribution of conch shell contained in clastic sediments in the mangrove swamps in the Funaura Bay, Iriomote Island, Okinawa Prefecture was studied. The sediments in the mangrove swamp are mainly composed of up to 90% sands. The sand clasts are inferred to be derived from the sandstone of Miocene Yaeyama Group. The conch shells are richer in the muddy fraction than the sandy fraction. Many Terebralia palustris inhabit the mangrove swamp. However few dead shells were also observed in the sediments. Effect of selective transportation hermit crabs is considered to be the cause of this distribution. en-copyright= kn-copyright= en-aut-name=AzumaHiroyuki en-aut-sei=Azuma en-aut-mei=Hiroyuki kn-aut-name=東裕行 kn-aut-sei=東 kn-aut-mei=裕行 aut-affil-num=1 ORCID= en-aut-name=SaigusaMasayuki en-aut-sei=Saigusa en-aut-mei=Masayuki kn-aut-name=三枝誠行 kn-aut-sei=三枝 kn-aut-mei=誠行 aut-affil-num=2 ORCID= en-aut-name=FukudaHiroshi en-aut-sei=Fukuda en-aut-mei=Hiroshi kn-aut-name=福田宏 kn-aut-sei=福田 kn-aut-mei=宏 aut-affil-num=3 ORCID= affil-num=1 en-affil= kn-affil=The Graduate School of Natural Science and Technology, Okayama University affil-num=2 en-affil= kn-affil=Department of Biology, Faculity of Science, Okayama University affil-num=3 en-affil= kn-affil=Faculity of Agriculture, Okayama University en-keyword=conch shell kn-keyword=conch shell en-keyword=Mangrove swamp kn-keyword=Mangrove swamp en-keyword=Terebralia palustris kn-keyword=Terebralia palustris END start-ver=1.4 cd-journal=joma no-vol=92 cd-vols= no-issue=1 article-no= start-page=75 end-page=102 dt-received= dt-revised= dt-accepted= dt-pub-year=2003 dt-pub=200302 dt-online= en-article= kn-article= en-subject= kn-subject= en-title=Molluscan Specimens Deposited in the Laboratory of Conservation of Aquatic Biodiversity, Faculty of Agriculture, Okayama University, Japan. Part 1 kn-title=岡山大学農学部水系保全学研究室所蔵貝類標本（１） en-subtitle= kn-subtitle= en-abstract= kn-abstract=A Systematic list is given for molluscan specimens which are deposited in the Laboratory of Conservation of Aquatic Biodiversity, Faculty of Agriculture, Okayama University (OKCAB). These specimens are available on loan for scientific purposes. Any individual or organization wishing to request a specimen for loan should contanct the present author. en-copyright= kn-copyright= en-aut-name=FukudaHiroshi en-aut-sei=Fukuda en-aut-mei=Hiroshi kn-aut-name=福田宏 kn-aut-sei=福田 kn-aut-mei=宏 aut-affil-num=1 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 en-keyword=Mollusca kn-keyword=Mollusca en-keyword=specimen kn-keyword=specimen en-keyword=collection kn-keyword=collection en-keyword=taxonomy kn-keyword=taxonomy en-keyword=database kn-keyword=database END