re: What The Heck Is This?

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This new nemertean has also a proboscis which is retractile within a proboscis sheath, but the proboscis is branched. The branching is of the dichotomous type. During eversion, which takes place almost explosively, the short main trunk. first appears, then this dividess and the finer and filter branches appear, but since each one of these is the result of an evagination the effect is almost indescribable. It is as if a large number of lively, wriggling, minunte worms had been shot out.

So the strange white thing that seems to "erupt" from the worm is its proboscis. This is a tubular sucking organ that some worms use to feed. The worm is feeling out what it's sitting on, trying to find out if it can eat the hand.

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