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Muscle filament staining of a turbellarian flatworm reveals a meshwork of longitudinal, circular and diagonal muscles. The large, bright ring with muscle fibers radiating outward is the muscular pharynx plicatus (Image courtesy of M. D. Hooge and S. Tyler, Department of Biological Sciences, University of Maine). |
The highly branched intestine of the translucent species
Aquaplana/Paraplanocera sp. extends throughout the
entire body (PHOTO © Robert F. Bolland). |
