Differential Interference Contrast Image Gallery

Lancelet (Amphioxus) Pharynx

Though capable of swimming, lancelets typically remain buried in the sand or mud that lines the ocean floors. To feed, they extend the anterior portion of their bodies upward out of the muck and the cilia that line their gill slits direct water toward their mouth openings. From the mouth, the water moves into the pharynx, the mucous membrane of the gill basket capturing edible organisms in the water and passing them onto the gut, where digestion begins with the aid of various enzymes. Unlike other chordates, lancelets are capable of phagocytosis, a digestive process in which individual cells consume food particles.


© 1995-2013 by Michael W. Davidson and The Florida State University. All Rights Reserved. No images, graphics, software, scripts, or applets may be reproduced or used in any manner without permission from the copyright holders. Use of this website means you agree to all of the Legal Terms and Conditions set forth by the owners.
This website is maintained by our
Graphics & Web Programming Team
in collaboration with Optical Microscopy at the
National High Magnetic Field Laboratory.
Last modification: Monday, Dec 01, 2003 at 03:02 PM
Access Count Since April 22, 2003: 8898
Microscopes provided by:
Visit the Nikon website. Visit the Olympus Microscopy Resource Center website.