Stenostoma
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In this Turbellarian the digestive tract (d.t.) is a blind sac. st., boundary of stomodaeum and mesenteron; c, cilia; g, ganglion (brain); g’, ganglion of a new individual which is being formed by fission; o, mouth; o’, mouth of new individual in process of formation; w, excretory system.
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WormsSource
Thomas Walton Galloway, Zoology A Text-Book For Secondary Schools, Normal Schools and Colleges (Philadelphia: P. Plakiston's Son & Co., 1913) 62
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