. Fresh-water biology. Freshwater biology. THE FREE-LIVING FLATWORMS (TURBELLARIA) 333 KEY TO NORTH AMERICAN FRESH-WATER TURBELLARIA Including the Land Planarians I (78) Intestine a single blind tube, median in position. Order Rhabdocoelida . 2 The intestine consists of a simple rod-shaped or sac cavity which rarely has lateral diverticula and never is divided into two distinct post-pharyngeal branches. Mostly small forms, never more than a few millimeters in length. The following Sgures (Figs. 589 and 590) facilitate a comparison of structure in the two great orders, Rhabdocoelida and Triclad
. Fresh-water biology. Freshwater biology. THE FREE-LIVING FLATWORMS (TURBELLARIA) 333 KEY TO NORTH AMERICAN FRESH-WATER TURBELLARIA Including the Land Planarians I (78) Intestine a single blind tube, median in position. Order Rhabdocoelida . 2 The intestine consists of a simple rod-shaped or sac cavity which rarely has lateral diverticula and never is divided into two distinct post-pharyngeal branches. Mostly small forms, never more than a few millimeters in length. The following Sgures (Figs. 589 and 590) facilitate a comparison of structure in the two great orders, Rhabdocoelida and Tricladida (p. 354).. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Ward, Henry Baldwin, 1865-1945; Whipple, George Chandler, 1866-1924. joint author. New York, John Wiley & sons, inc. ; [etc. ,etc. ]
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectfreshwa, bookyear1918
