Siboglinum

Japanese: Siboglinum
Siboglinum

…Eggs are laid in the burrowing tube and develop into larvae, but because the long diameter of the eggs is greater than the diameter of the burrowing tube, they are arranged at an angle. Siboglinum genus individuals have been collected from the mud at depths of 500m or more in Sagami Bay and Suruga Bay. A new species, Oligobrachia mashikoi , was reported in 1973 from a depth of 20-25m in Tsukumo Bay. …

*Some of the terminology explanations that mention "Siboglinum" are listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…棲管(せいかん)中に産卵し,幼生にまで発達するが,卵の長径は棲管の直径より大きいため,斜めになって並んでいる。 相模湾や駿河湾の500m以深の泥中からは,Siboglinum属の個体がかなり採集される。九十九湾の水深20~25mから新種のマシコヒゲムシOligobrachia mashikoiが1973年に報告された。…

※「Siboglinum」について言及している用語解説の一部を掲載しています。

出典|株式会社平凡社世界大百科事典 第2版について | 情報

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