July 8, 2002
From: Rick Hennis
This creature came in on some live rock out of the Sea of Cortez. It comes out about 5min after lights out.
Please help me identify.
firstname.lastname@example.orgHennis, R., 2002 (Jul 8) Mystery from the Sea of Cortez. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/7418
This is a Nemertean worm (also known as a Ribbon Worm, or Bootlace Worm}. They can grow very long and can change shape from being a short, fat worm to being an extremely long thin worm. Unlike most worms it does not have a mouth is not at the end of its body but has a long proboscis which can shoot out from a pore about a quarter of the way down the body. I think the third 'arm' in your animal is the feeding proboscis.