External Morphology
Bonellia viridis specimens are hard to find but easy to identify.
They have a forked proboscis that is very characteristic of the specie as it is long, thin and green due to the production of Bonellin, a toxic green pigment. They have a cigar-shaped trunk with many papillae all over their body.
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Photo by Lucie Malard
Drawing by Lucie Malard, Adapted from Ruppert et al. 2005
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