Feather Duster Worm (Sabellastarte spectabilis) ケヤリムシ
Feather Duster Worms are a type of Polychaete worm living in a tube. Polychaete worms are Bristle Worms. Feather Dusters have a fan for collecting food. The fan can be retracted for feeding and if it senses danger. It is hard to find a good guide for distinguishing the species. Most likely you would have to examine the worm in the tube for some. Here are a few examples of the Feather Dusters. Enoshima 2015
Feather Duster Worm (Bispira tricyclia)? カタマキケヤリ Amami 2024
Feather Duster Worm (Bispira tricyclia)? カタマキケヤリ Amami 2025
Feather Duster Worm (Sabella fusca)? ホンケヤリムシ
Feather Duster Worms are a type of Polychaete worm living in a tube. Polychaete worms are Bristle Worms. Feather Dusters have a fan for collecting food. The fan can be retracted for feeding and if it senses danger. It is hard to find a good guide for distinguishing the species. Most likely you would have to examine the worm in the tube for some. Here are a few examples of the Feather Dusters. Izumo 2016
Feather Duster Worm (Sabellastarte spectabilis)? インドケヤリ Amami 2022