A worm-like chiton from the South Pacific. Most chitons have well-developed, easily visible dorsal plates, but in a few species the plates are greatly reduced. A few of these species also have an elongate, worm-like body. Shown here are an adult, a juvenile and a young chiton.
John B. Burch (photographer; copyright holder), Mollusk Division, Museum of Zoology, University of Michigan-Ann Arbor