Keel worms
![Pomatoceros triqueter](pomarod.gif)
Keel worms with their red crowns of tentacles.
![Pomatoceros triqueter](pomaror.gif)
Keel worm tubes.
Keel worm Other
names
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© Aquascope 2000 Tjärnö Marine Biological
Laboratory, Strömstad, Sweden
Bo Johannesson
| Martin Larsvik
| Lars-Ove
Loo | Helena
Samuelsson