1.

論文(リポジトリ)

論文(リポジトリ)
前之園, 唯史 ; 石田, 憲 ; 佐伯, 智史 ; Maenosono, Tadafumi ; Ishida, Akira ; Saeki, Toshifumi
出版情報: Fauna Ryukyuana.  60  pp.1-2,  2021-06-09.  Ryukyu University Museum, Fujukan — 琉球大学資料館 (風樹館)
URL: http://hdl.handle.net/20.500.12000/48545
概要: The record of Shinobium trapezoideum from Iriomote Island was previously based only on unpublished information. The presence of a voucher specimen with previously unpublished information, deposited in the Ryukyu University Museum, Fujukan (RUMF), is here documented. 続きを見る
2.

論文(リポジトリ)

論文(リポジトリ)
前之園, 唯史 ; Maenosono, Tadafumi
出版情報: Fauna Ryukyuana.  59  pp.1-15,  2021-03-11.  Ryukyu University Museum, Fujukan — 琉球大学資料館 (風樹館)
URL: http://hdl.handle.net/20.500.12000/47947
概要: 九州の南端と琉球列島の沿岸域から採集された標本に基づき, シワオウギガニ属Macromedaeus Ward, 1942のノコハシワオウギガニ (新称) M. nudipes (A. Milne-Edwards, 1867), コブテシワオ ウギガニ (新称) M. quinquedentatus (Krauss, 1843), アルフォンシワオウギガニM. crassimanus (A. Milne-Edwards, 1867), マルハシワオウギガニ (改称) M. demani (Odhner, 1925) およびヒメシワオウギガニM. orientalis (Takeda & Miyake, 1969) を報告した. これら5種のうちノコハシワオウギガニ, コブテシワオウギガニ, マルハシワオウギガニの3種は日本沿岸からの初記録である. 本稿では, これら5種にシワオウギガニM. distinguendus De Haan, 1835を加えた日本産シワオウギガニ属全6種の検索表も与えた.<br />Five species of the xanthid genus Macromedaeus Ward, 1942, viz. M. nudipes (A. Milne-Edwards, 1867), M. quinquedentatus (Krauss, 1843), M. crassimanus (A. Milne-Edwards, 1867), M. demani (Odhner, 1925) and M. orientalis (Takeda & Miyake, 1969), are reported based on specimens collected from the Ryukyu Islands and the southern part of Kyushu. The present study represents the first records of M. nudipes, M. quinquedentatus and M. demani to the Japanese fauna. An identification key to the six species of Macromedaeus recorded from Japan, including M. distinguendus De Haan, 1835, is also provided. 続きを見る
3.

論文(リポジトリ)

論文(リポジトリ)
前之園, 唯史 ; Maenosono, Tadafumi
出版情報: Fauna Ryukyuana.  59  pp.19-20,  2021-03-11.  Ryukyu University Museum, Fujukan — 琉球大学資料館 (風樹館)
URL: http://hdl.handle.net/20.500.12000/47949
概要: Zehntneriana serrata Ng & Lin, 2015 (Decapoda: Brachyura: Pilumnidae) is reported from Japan for the first time based on specimens collected from Okinawa and Sesoko islands
4.

論文(リポジトリ)

論文(リポジトリ)
前之園, 唯史 ; Maenosono, Tadafumi
出版情報: Fauna Ryukyuana.  58  pp.15-36,  2020-12-04.  Ryukyu University Museum, Fujukan — 琉球大学資料館 (風樹館)
URL: http://hdl.handle.net/20.500.12000/47427
概要: 沖縄諸島の沿岸域から採集された標本に基づき, ヒメオキナガニ属Viaderiana Ward, 1942 (ケブカガニ科) のニイロケブカガニ (改称) V. incerta (Takeda & Miyake, 1969), オニヒ メオキナガニ (新称) V. typica Ward, 1942, ヒメオキナガニV. quadrispinosa (Zehntner, 1894) およびカーミージーケブカガニ (新称) V. longipes (A. Milne-Edwards, 1873) を報告した. 本稿では, これら4種の形態的特徴を記すとともに分類学的な問題にも言及した. 本研究でオニヒメオキナガニと同定した標本は, 眼窩外歯の形状によってV. rotumana (Borradaile, 1900) と区別されたが, V. woodmasoni (Deb, 1987) との識別形質は不明であった. さらにヒメオキナガニと同定した標本は, 雄の腹部の形状と甲の斑紋によってV. xishaensis (Song, 1987) と区別されたが, V. nanshensis (Dai, Cai & Yang, 1994) との違いを見出せなかった. これら各種の識別形質については更なる検討が必要であろう. 加えて, Sakai (1976: pl. 191, fig. 3) で “ヒメオキナガニ” とされていた種は, 甲の形状や額の突出, 甲の色彩から真のV. quadrispinosaではなく, カーミージーケブカガニであることも示した.<br />Four species of the pilumnid genus, Viaderiana Ward, 1942, viz. V. incerta (Takeda & Miyake, 1969), V. typica Ward, 1942, V. quadrispinosa (Zehntner, 1894), and V. longipes (A. Milne-Edwards, 1873), are reported based on specimens collected from the Okinawa Island Group, Central Ryukyus, southern Japan. Notes on their morphological features and taxonomical problems are provided. The specimens identified as V. typica in the present study are distinguished from V. rotumana (Borradaile, 1900) by having tooth-shaped external orbital angle, but the distinguishable characters between the specimens examined and V. woodmasoni (Deb, 1987) remain unclear. In addition, the specimens identified as V. quadrispinosa in the present study can be distinguished from V. xishaensis (Song, 1987) by proportionally narrower male pleon and different dark pattern on the carapace, but the distinguishable characters between the specimens examined and V. nanshensis (Dai, Cai & Yang, 1994) also remain unclear. The taxonomic status and distinguishable characters of these species need to be reconsidered in future studies. Furthermore, “Litocheira quadrispinosa” recorded by Sakai (1976: pl. 191, fig. 3) from the Ryukyu Islands is found to be V. longipes instead, because of strongly converging posterolateral margin of the carapace, strongly protruding front in dorsal view, and different carapace colouration. 続きを見る
5.

論文(リポジトリ)

論文(リポジトリ)
前之園, 唯史 ; 佐伯, 智史 ; 石田, 憲 ; 西垣, 孝治 ; Maenosono, Tadafumi ; Saeki, Toshifumi ; Ishida, Akira ; Nishigaki, Koji
出版情報: Fauna Ryukyuana.  54  pp.3-5,  2020-04-07.  Ryukyu University Museum, Fujukan — 琉球大学資料館 (風樹館)
URL: http://hdl.handle.net/20.500.12000/46849
概要: Two species of varunid mud crabs, Parahelice daviei (Sakai, Türkay & Yang, 2006) and P. pilimana (A. Milne-Edwards, 1873), were recorded based on specimens collected from several islands in the Ryukyu Archipelago, Japan. Parahelice daviei from Kume-jima Island and P. pilimana from Okinawa-jima, Kume-jima and Miyako-jima islands represent the first records from these respective islands. 続きを見る
6.

論文(リポジトリ)

論文(リポジトリ)
前之園, 唯史 ; Maenosono, Tadafumi
出版情報: Fauna Ryukyuana.  52  pp.15-22,  2019-11-24.  Ryukyu University Museum, Fujukan — 琉球大学資料館 (風樹館)
URL: http://hdl.handle.net/20.500.12000/46842
概要: 沖縄諸島の沿岸域からツェンナーガニ属(新称) Zehntneriana Ng & Takeda, 2010の3種[アシナガツェンナーガニ(改称)Z. miyakei (Takeda, 1972),オガサワラツェンナーガニZ. nov aeinsulicola (Takeda & Kurata, 1977),ビロードツェンナーガニZ. tadafumii Lee, Kim & Ng, 2015]の標本を採集した.これら3種のうち,アシナガツェンナーガニは沖縄島からの初記録であり,オガサワラツェンナーガニは琉球列島から初記録である.本稿ではこれら3種に加えて,琉球列島からの採集記録もあるアマクサツェンナーガニZ.amakusae (Takeda & Miyake, 1969)を含めた計4種について,分布記録,生息環境およびこれまでに提唱された和名についての情報を整理した.さらに, Z. serrata Ng & Lin, 2015も加えた日本・台湾産のツェンナーガニ属5種の検索表も与えた.<br />Three species of the pilumnid genus, Zehntneriana Ng & Takeda, 2010, viz. Z. miyakei (Takeda, 1972), Z. novaeinsulicola (Takeda & Kurata, 1977), Z. tadafumii Lee, Kim & Ng, 2015, were collected from the Okinawa Island Group, central Ryukyus, Japan. Zehntneriana miyakei and Z. novaeinsulicola are recorded for the first time from Okinawa Island and the Ryukyu Islands, respectively. Distributional records, habitats and standard Japanese names of the above three species and Z. amakusae (Takeda & Miyake, 1969) are summarized. An identification key to the five species of Zehntneriana in the Japan and Taiwan is also provided. 続きを見る
7.

論文(リポジトリ)

論文(リポジトリ)
武田, 正倫 ; 小松, 浩典 ; 鹿谷, 法一 ; 前之園, 唯史 ; 成瀬, 貫 ; Takeda, Masatsune ; Komatsu, Hironori ; Shikatani, Norikazu ; Maenosono, Tadafumi ; Naruse, Tohru
出版情報: Fauna Ryukyuana.  50  pp.1-69,  2019-08-16.  Ryukyu University Museum, Fujukan — 琉球大学資料館 (風樹館)
URL: http://hdl.handle.net/20.500.12000/46861
概要: 1985–1987年,沖縄島中城湾の知念漁港および当添漁港において,漁業者が設置した刺し網にかかったカニ類を収集した「鹿谷コレクション」について,ケブカガニ科以外の全種を同定し,写真付きリストにまとめた.カラッパ属Calappa (カラッパ科)8種についてはすでにTakeda & Shikatani (1990)によってまとめられ,また,イボテガニ属Actumnus(ケブカガニ科)の2新種についてはTakeda & Komatsu(2017)により記載されている.本報告では,既報のこれら10種を除いて,23科87種を認めた.そのうち,コブヒメカイカムリ(新称)Epigodromia rugosa McLay,1993(カイカムリ科),ミナミジュウイチトゲコブシガニ(新称)Arcania brevifrons Chen, 1989およびミナミコブシガニ(新称)Soceulia alainia Galil, 2006(以上2種はともにコブシガニ科),ミナミツノガニ(新称)Hyastenus elatus Griffin & Tranter, 1986(モガニ科),ミナミノコギリガニ(新称)Schizophrys dahlak Griffin & Tranter, 1986(ケアシガニ科),Portunus (Xiphonectes) aff. spiniferus Stephenson & Rees, 1967(ワタリガニ科)の6種が日本新記録種であり,種名が確定した5種に新たな和名を提唱した.近年,刺し網漁を行う漁業者が減少し,また度重なる沿岸環境の改変により,中城湾においてカニ類等を同様な方法で採集することは難しい状況であることからも,本コレクションは非常に重要な資料である.<br />One of the authors (NS) made extensive collections of shallow water brachyurans (= crabs) of Nakagusuku Bay, southeastern Okinawa Island, from gill net at Chinen and Tozoe fishery ports between 1985 and 1987. Takeda & Shikatani (1990) already reported seven known and one new species of the genus Calappa (Calappidae), and recently Takeda & Komatsu (2017) described two new Actumnus species (Pilumnidae) from this collection. However, most of the specimens collected have still not been reported on. The present report enumerates the brachyuran species other than some remaining specimens of the family Pilumnidae, with photographs and taxonomic comments. Of the recorded species, Epigodromia rugosa McLay, 1993 (Dromiidae), Arcania brevifrons Chen, 1989 (Leucosiidae), Soceulia alainia Galil, 2006 (Leucosiidae), Hyastenus elatus Griffin & Tranter, 1986 (Epialtidae), Schizophrys dahlak Griffin & Tranter, 1986 (Majidae) and Portunus (Xiphonectes) aff. spiniferus Stephenson & Rees, 1967 (Portunidae) are new to Japanese waters. 続きを見る
8.

論文(リポジトリ)

論文(リポジトリ)
石田, 憲 ; 前之園, 唯史 ; Ishida, Akira ; Maenosono, Tadafumi
出版情報: Fauna Ryukyuana.  48  pp.5-7,  2019-03-23.  Ryukyu University Museum, Fujukan — 琉球大学資料館 (風樹館)
URL: http://hdl.handle.net/20.500.12000/46828
概要: The tree-climbing sesarmid crab, Scandarma lintou Schubart, Liu & Cuesta, 2003, is newly recorded from Miyako-jima Island, Ryukyu Archipelago, southwestern Japan. Habitats of the observed crabs are briefly noted.
9.

論文(リポジトリ)

論文(リポジトリ)
前之園, 唯史 ; Maenosono, Tadafumi
出版情報: Fauna Ryukyuana.  48  pp.19-44,  2019-03-23.  Ryukyu University Museum, Fujukan — 琉球大学資料館 (風樹館)
URL: http://hdl.handle.net/20.500.12000/46830
概要: 九州の南端と琉球列島の沿岸域から採集された標本に基づき,ケブカガニ科のオキナガニHeteropilumnus ciliatus (Stimpson, 1858),ツブヨコナガオキナガニH. decharmoyi (Bouvier, 1915 ),ハバヒロオキナガニ(新称) H. hirsutior (Lanchester, 1900),ハラボソオキナガニ(新称) H. satriai Yeo, Rahayu & Ng, 2004,オキナガニモドキ(新称) Pilumnus digitalis Rathbun, 1923,ウキボリタコガニLophoplax sculpta (Stimpson, 1858), サモアタコガニPseudocryptocoeloma symmetrinudus Edmondson, 1951,ヨコナガオキナガニPseudolitochira integra (Miers, 1884) およびメイロケブカガニVellumnus vermiculatus (A. Milne-Edwards, 1873)を報告した.これら9種のうち,ハバヒロオキナガニ,ハラボソオキナガニおよびオキナガニモドキは日本沿岸からの初記録である.オキナガニモドキの形態的特徴は,オキナガニ属Heteropilumnus De Man,1895の一般的な特徴によく一致していたが,分類学的な位置付けの決定には,オキナガニ属の総合的な見直しが必要である.<br />Nine rare pilumnid crabs, Heteropilumnus ciliatus (Stimpson, 1858), H. decharmoyi (Bouvier, 1915), H. hirsutior (Lanchester, 1900), H. satriai Yeo, Rahayu & Ng, 2004, Pilumnus digitalis Rathbun, 1923, Lophoplax sculpta (Stimpson, 1858), Pseudocryptocoeloma symmetrinudus Edmondson, 1951, Pseudolitochira integra (Miers, 1884) and Vellumnus vermiculatus (A. Milne-Edwards, 1873) are reported based on specimens collected from the Ryukyu Islands and the southern part of Kyushu. The present study represents the first records of H. hirsutior, H. satriai and Pilumnus digitalis to the Japanese fauna. The morphological features of P. digitalis resemble several species of the genus Heteropilumnus De Man, 1895, but full revision of the genus Heteropilumnus is needed to ascertain the generic position of the species. 続きを見る
10.

論文(リポジトリ)

論文(リポジトリ)
前之園, 唯史 ; Maenosono, Tadafumi
出版情報: Fauna Ryukyuana.  47  pp.19-22,  2018-12-10.  Ryukyu University Museum, Fujukan — 琉球大学資料館 (風樹館)
URL: http://hdl.handle.net/20.500.12000/46826
概要: Arcania tuberculata Bell, 1855 (Decapoda: Brachyura: Leucosiidae) is reported from Japan for the first time based on a male specimen collected from Okinawa Island, Ryukyu Archipelago. The present specimen greatly extends the geographical range of the species to the north. The distinguishing characters between A. tuberculata and two congeners, A. sagamiensis Sakai, 1969, and A. marinduquensis Komatsu, Manuel & Takeda, 2004, are also discussed. Although the shape of granules on the dorsal surface of the carapace and the appearance of the frontal margin were diagnostic characters between A. tuberculata and A. marinduquensis, the present study found that A. tuberculata has intraspecific variations in the abovementioned characters, which make difficult to differentiate the two species by these characters. Reappraisal of the identity and/or distinguishable characters of these two species are needed. 続きを見る