http://www.nematomorpha.net/Adults.html Noble, E.R. et al., 1989 Parasitology p. 437 Large Nematomorph Worm in a Marine Crustacean Pearse J. et al., 1987 Living Invertebrates, p. 294 Characteristic blunt anterior & branched posterior of a nematomorph worm Pearse J. et al., 1987 Living Invertebrates, p. 295 Mass of Adult Nematomorph Worms Showing Characteristic Coiling Loops Suggestive of the Gordian Knot of Alexander the Great http://www.nematomorpha.net/Larvae.html Nematomorph larvae with stylets Egg-string of worm Pearse, J. et al., 1987 Living Invertebrates Blackwell Scientific Publications, p. 266 Crab Eggs Found in Egg Masses of Crabs The Egg Predator Carcinonemertes Pechenik, J.A. 1996 Biology of the Invertebrates Wm C. Brown Publishers, p. 168 Notice that the Rhynchocoel is Separate from the Digestive Tract Anatomy of a Nemertean Worm http://www.vims.edu/env/research/leeches/graphics/Parasitica3. Photographed and compiled by Mark E. Siddall and Eugene M. Burreson all rights reserved Placobdella parasitica Pearse, J. et al., 1987 Living Invertebrates . Blackwell Scientific Publications, p. 266 Attachment Sucker Found in Marine Bivalve Molluscs The Commensal Nemertean Malacobdella Photo Courtesy of Luciano Chiaverano, DISL Peachia sp. Feeding on the Moon Jellyfish, Aurelia Photographed and compiled by Mark E. Siddall and Eugene M. Burreson - all rights reserved http://www.vims.edu/env/research/leeches/graphics/bluecrab2.gif Cocoons of the leech, Myzobdella lugubris on carapace of a blue crab Margin Bell http://www.angelfire.com/mo2/animals1/catfish/candiru.html Photo by Frank Magallanes, OPEFE http://www.angelfire.com/biz/piranha038/candiru.html CANDIRU Photo Courtesy of Luciano Chiaverano, DISL Gonads of Host Parasitic Juvenile Stages of Peachia sp.in the Gonads and Bell Margin of Host