Christmas Tree Worm Eyes. Unfortunately for the worm eyes. Nick hobgood wikimedia commons cc by sa 3 0.
Christmas tree worms have eyes in a really silly place says michael bok. But their radioles also sport cells that let them distinguish changes in light like the shadow of a predator looking to munch on them. Giganteus is commonly found embedded entirely in heads of massive corals such as stony corals porites and brain corals.
Once settled down a christmas tree worm can live upwards of 30 years.
This widespread marine worm spirobranchus giganteus gets its holiday nickname from its gills. They stick up from the top of the worm s buried retreat like the ornamental trees. Bok of lund university in sweden says he has seen worm gills in red orange blue yellow even stripes. They re the gills of christmas tree worms which hide below in tubes within the coral.