Jimi, Naoto, Fujiwara, Yoshihiro. (2016). [Reproductive swarming of Polyophthalmus pictus (Annelida: Opheliidae) observed at Okinawa Island and adjacent island, Ryukyu Islands, southern Japan] (In Japanese). Fauna Ryukyuana. 28: 29–35.
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Jimi, Naoto, Fujiwara, Yoshihiro
2016
[Reproductive swarming of Polyophthalmus pictus (Annelida: Opheliidae) observed at Okinawa Island and adjacent island, Ryukyu Islands, southern Japan] (In Japanese)
Sexually mature swarming adults of Polyophthalmus pictus (Annelida: Opheliidae) were collected from two sites from Okinawa Island and adjacent island around night during spring high-tides at the new moon and the following two days in February 2015, using an underwater light. Chaetae in the tail become longer in swarming adults due to epitokous metamorphosis in comparison with immature benthic specimens. This is the first record of the reproductive swarming behavior and epitokous metamorphosis in Japanese opheliids
