1.

論文(リポジトリ)

論文(リポジトリ)
藤田, 喜久 ; 海老沢, 明彦 ; Fujita, Yoshihisa ; Ebisawa, Akihiko
出版情報: Fauna Ryukyuana.  58  pp.57-59,  2020-12-04.  Ryukyu University Museum, Fujukan — 琉球大学資料館 (風樹館)
URL: http://hdl.handle.net/20.500.12000/47434
概要: Specimens of the giant red shrimp, Aristaeomorpha foliacea (Risso, 1827) (Dendrobrancthiata: Aristeidae), were recorded on the basis of the specimens found in the stomach contents of the swordfish, Xiphias gladius Linnaeus, 1758, caught from off Okinawa-jima Island, Ryukyu Islands, Japan, representing the first record as a prey item for X. gladius. 続きを見る
2.

論文(リポジトリ)

論文(リポジトリ)
大岡, 素平 ; 藤田, 喜久 ; Ooka, Sohei ; Fujita, Yoshihisa
出版情報: Fauna Ryukyuana.  53  pp.7-9,  2020-02-22.  Ryukyu University Museum, Fujukan — 琉球大学資料館 (風樹館)
URL: http://hdl.handle.net/20.500.12000/46844
概要: A stygobiotic atyid shrimp, Caridina rubella Fujino & Shokita, 1975, is recorded on the basis of single specimen collected from a freshwater river in a limestone cave at Hamahiga-jima Island, Okinawa Island Group, central Ryukyus, Japan. This report represents the first record of C. rubella from the island. 続きを見る
3.

論文(リポジトリ)

論文(リポジトリ)
藤田, 喜久 ; 佐伯, 智史 ; 瀬戸, 文久 ; 福島, 新 ; Fujita, Yoshihisa ; Saeki, Tomofumi ; Seto, Fumihisa ; Fukushima, Arata
出版情報: Fauna Ryukyuana.  53  pp.11-14,  2020-02-22.  Ryukyu University Museum, Fujukan — 琉球大学資料館 (風樹館)
URL: http://hdl.handle.net/20.500.12000/46845
概要: Three species of decapod crustaceans, Metabetaeus minutus (Whitelegge, 1897) (Alpheidae), Tuerkayana rotunda (Quoy & Gaimard, 1824) (Gecarcinidae), and Karstarma boholano (Ng, 2002) (Sesarmidae), are recorded for the first time on the basis of specimens collected from Hatoma-jima Island, Yaeyama Island Group, southern Ryukyus, Japan. Habitats of these decapods are briefly noted. 続きを見る
4.

論文(リポジトリ)

論文(リポジトリ)
小林, 大純 ; 内田, 晃士 ; 鈴木, 廣志 ; 藤田, 喜久 ; Kobayashi, Hirozumi ; Uchida, Koji ; Suzuki, Hiroshi ; Fujita, Yoshihisa
出版情報: Fauna Ryukyuana.  51  pp.9-12,  2019-09-12. 
URL: http://hdl.handle.net/20.500.12000/46837
概要: A stygobiotic atyid shrimp, Antecaridina lauensis (Edmondson, 1935), was collected from anchialine caves in Tokunoshima, Okinoerabu-jima and Hateruma-jima islands of the Ryukyu Islands, southwestern Japan. These records represent the first discoveries of A. lauensis from respective islands and slightly extend the geographical range of this species northward. 続きを見る
5.

論文(リポジトリ)

論文(リポジトリ)
藤田, 喜久 ; Fujita, Yoshihisa
出版情報: Fauna Ryukyuana.  51  pp.13-14,  2019-09-12.  Ryukyu University Museum, Fujukan — 琉球大学資料館 (風樹館)
URL: http://hdl.handle.net/20.500.12000/46838
概要: Two stygobiotic shrimp species, Metabetaeus minutus (Whitelegge, 1897) (Alpheidae) and Halocaridinides trigonophthalma (Fujino & Shokita, 1975) (Atyidae), are recorded for the first time on the basis of specimens from Yonaguni-jima Island, Yaeyama Island Group, southern Ryukyus, Japan. The two species were found in an anchialine pool in a cave, together with Antecaridina lauensis (Edmondson, 1935), Tuerkayana rotunda (Quoy & Gaimard, 1824) and T. hirtipes (Dana, 1851). 続きを見る
6.

論文(リポジトリ)

論文(リポジトリ)
藤田, 喜久 ; 藤井, 琢磨 ; Fujita, Yoshihisa ; Fujii, Takuma
出版情報: Fauna Ryukyuana.  48  pp.1-3,  2019-03-23.  Ryukyu University Museum, Fujukan — 琉球大学資料館 (風樹館)
URL: http://hdl.handle.net/20.500.12000/46827
概要: A cavernicolous sesarmid crab, Karstarma boholano (Ng, 2002), is recorded on the basis of the specimens collected from anchialine caves in Tokuno-shima and Okinawa-jima islands, central Ryukyus, southwestern Japan. These records represent the first discoveries of K. boholano from these islands and extend the geographical range of this species northward. 続きを見る
7.

論文(リポジトリ)

論文(リポジトリ)
丸山, 智朗 ; 藤田, 喜久 ; Maruyama, Tomoaki ; Fujita, Yoshihisa
出版情報: Fauna Ryukyuana.  46  pp.5-9,  2018-10-31.  Ryukyu University Museum, Fujukan — 琉球大学資料館 (風樹館)
URL: http://hdl.handle.net/20.500.12000/46808
概要: A stygiobiont palaemonid prawn, Macrobrachium miyakoense Komai & Fujita, 2005, is recorded based on a female specimen collected from an anchialine cave in Ishigaki-jima Island, Yaeyama Island Group, Ryukyu Islands, southwestern Japan. This is the first distributional record of the species from outside Miyako-jima Island. The species is morphologically very similar to M. xmas, but the specimen was identified as M. miyakoense based on the eye stalk width, rostral shapes, and their distribution. Our observation indicates that these two species could not be identified based on one of diagnostic characters proposed in the original description (the number of teeth on the post-rostral margin of the carapace). 続きを見る
8.

論文(リポジトリ)

論文(リポジトリ)
Komai, Tomoyuki ; Osawa, Masayuki ; Maenosono, Tadafumi ; Fujita, Yoshihisa ; Naruse, Tohru ; 駒井, 智幸 ; 大澤, 正幸 ; 前之園, 唯史 ; 藤田, 喜久 ; 成瀬, 貫
出版情報: Fauna Ryukyuana.  42  pp.9-27,  2018-03-23.  Ryukyu University Museum, Fujukan — 琉球大学資料館 (風樹館)
URL: http://hdl.handle.net/20.500.12000/39146
概要: Examination of samples collected from the Ryukyu Islands, Japan, has revealed the common occurrence of the callianassid ghost shrimp Lepidophthalmus tridentatus (von Martens, 1868), although literature records of the species are rather scarce. The specimens examined in this study were collected from Amami-ohshima Island, the Okinawa Islands and the Yaeyama Islands. The species was found to burrow in soft sediments in intertidal to shallow subtidal zones, particularly in estuaries and mangrove areas. A detailed description of the species is provided to show evidence of the identification, as well as diagnostic details not mentioned in previous literature. Some comments on the taxonomy of the genus Lepidophthalmus are also given.<br />琉球諸島から採集された標本に基づき, スナモグリ科の一種Lepidophthalmus tridentatus (von Martens, 1868) (新称: ミツトゲヤワスナモグリ) を報告する. 本種はスリランカ〜フィリピン・インドネシア・ビスマルク諸島におよぶ範囲から記録されていたが, 文献での報告は少ない. 本種の日本における出現は,これまでいくつかの文献で示唆されていたが,標本に基づいた記録と形態の記載はなされていなかった. 本研究により検討された標本は奄美大島を北限に, 沖縄諸島, 久米島, 八重山諸島 (石垣島, 西表島) から採集され, これらの島嶼の河口域やマングローブ林内あるいは周辺の砂泥干潟に普通に生息することが明らかとなった. 産地によっては, かなりの高密度で巣穴が認められた. 同定の根拠を明らかにすることと種の認識にあたり有用な形態形質を明示することを目的として詳細な記載を与えた. さらに, Lepidophthalmus (新称: ヤワスナモグリ属) の分類の現状と種構成についていくつかコメントを与えた. 続きを見る
9.

論文(リポジトリ)

論文(リポジトリ)
藤田, 喜久 ; Fujita, Yoshihisa
出版情報: Fauna Ryukyuana.  37  pp.1-2,  2017-08-31.  琉球大学資料館 (風樹館) — Ryukyu University Museum, Fujukan
URL: http://hdl.handle.net/20.500.12000/38806
概要: A spotted frog crab, Notopus dorsipes (Linnaeus, 1758), is recorded on the basis of the specimens collected from Ohura Bay and Kin Bay of Okinawa-jima Island, Ryukyu Islands, southwestern Japan. This record represents the first discovery of N. dorsipes from the central Ryukyus, although it has known to be distributed at Tanegashima Island of the northern Ryukyus and Taiwan. 続きを見る
10.

論文(リポジトリ)

論文(リポジトリ)
Fujita, Yoshihisa ; Mizuyama, Masaru ; Yamada, Yusuke ; 藤田, 喜久 ; 水山, 克 ; 山田, 祐介
出版情報: Fauna Ryukyuana.  37  pp.31-33,  2017-08-31.  琉球大学資料館 (風樹館) — Ryukyu University Museum, Fujukan
URL: http://hdl.handle.net/20.500.12000/38813
概要: A rare bresiliid shrimp, Bresilia rufioculus Komai & Yamada, 2011, is recorded on the basis of a male specimen collected from a submarine cave in Shimoji-jima Island, Miyako Island Group, southern Ryukyus, Japan. This record represents the first finding of a male individual of B. rufioculus, and slightly extends the geographical range of this species southward. 続きを見る