6 0 0 0 OA 希少種ユメユムシ(環形動物門:ユムシ綱:ミドリユムシ科)の四国からの初記録
- 著者
- 後藤 龍太郎 邉見 由美 Jonel Mangente Corral 塩﨑 祐斗 加藤 哲哉 伊谷 行
- 出版者
- 日本ベントス学会
- 雑誌
- 日本ベントス学会誌 (ISSN:1345112X)
- 巻号頁・発行日
- vol.72, no.2, pp.79-82, 2018-03-31 (Released:2018-04-19)
- 参考文献数
- 21
- 被引用文献数
- 2
Ikedosoma elegans (Ikeda, 1904) (Annelida: Echiura: Thalassematidae) is a rare, large deep-burrowing spoon worm that has been observed only in Japan. This species was first described based on the specimens collected from Misaki, Sagami Bay (Kanagawa Prefecture), eastern Japan, in 1902. Since the first description, this species has not been collected until the recent studies, which reported that I. elegans was collected from Hamana Lake (Shizuoka Prefecture), Boso Peninsula (Chiba Prefecture), and probably Amakusa, Ariake Sea (Kumamoto Prefecture). Furthermore, the specimen collected from Takasu, Seto Inland Sea (Okayama Prefecture) in 1975 was identified to be I. elegans. In this study, we present a new locality of this species in Japan. We collected a large individual of I. elegans with a probably commensal scale worm (Polynoidae: Polynoinae) by using a yabby pump in a mud flat in the Doki River Estuary, which is facing the Seto Inland Sea, in Marugame (Kagawa Prefecture), northern Shikoku Island. To the best of our knowledge, the present study is the first record of I. elegans from Shikoku Island and the second record from the Seto Inland Sea, following a 42-year-old record from Takasu, Okayama.
2 0 0 0 日本産ユムシ動物の多様性と系統分類(1)
- 著者
- 後藤 龍太郎
- 出版者
- 水産無脊椎動物研究所
- 雑誌
- うみうし通信 (ISSN:13415972)
- 巻号頁・発行日
- no.76, pp.5-7, 2012-09
1 0 0 0 OA カブトヤドカリとモンバンイソギンチャクの共生継続様式
1 0 0 0 OA 瀬戸内海四国沿岸からのシマトラフヒメシャコの記録
- 著者
- 邉見 由美 乾 隆帝 後藤 龍太郎 伊谷 行
- 出版者
- 日本魚類学会
- 雑誌
- 魚類学雑誌 (ISSN:00215090)
- 巻号頁・発行日
- pp.18-021, (Released:2018-09-10)
- 参考文献数
- 24
Eight specimens of a threatened goby, Gymnogobius macrognathos (30.04– 38.87 mm in standard length), were collected on a mudflat characterized by abundant burrows of Upogebia major, at Akkeshi, Hokkaido, northern Japan in August 2017. Because G. macrognathos specimens were collected directly from U. major burrows by suction pump, and were also collected with U. major by digging sediment exposed at low tide, it was concluded that G. macrognathos utilized U. major burrows on the tidal flat. Gymnogobius mororanus and an unidentified species of Gymnogobius also utilized U. major burrows. The presence of G. macrognathos at Akkeshi represents the northernmost record of the species in Japanese waters, the isolated population being ca. 500 km north of the main distributional range of the species along the Pacific coast of Japan.