. Fresh-water biology. Freshwater biology. THE FREE-LIVING FLATWORMS (TURBELLARIA) 345 49 (48) Each spine consists of two joints. Stalk much reduced and variable in shape Dalyellia articulata von Gra,E igii. Similar to D. rheesi in color and general structure. Sexual organs differ as shown by a com- parison of Figs. 610 and 611. Same localities as D. rheesi. Fig. 611. Dalyellia ariiculata. {A) Posterior end with sex organs from a strongly compressed specimen: be, bursa copulatrix; ch, chitinous part of male organs; ge, ovary; gii, genital pore; f5j receptaculura seminis; u, uterus with eg
. Fresh-water biology. Freshwater biology. THE FREE-LIVING FLATWORMS (TURBELLARIA) 345 49 (48) Each spine consists of two joints. Stalk much reduced and variable in shape Dalyellia articulata von Gra,E igii. Similar to D. rheesi in color and general structure. Sexual organs differ as shown by a com- parison of Figs. 610 and 611. Same localities as D. rheesi. Fig. 611. Dalyellia ariiculata. {A) Posterior end with sex organs from a strongly compressed specimen: be, bursa copulatrix; ch, chitinous part of male organs; ge, ovary; gii, genital pore; f5j receptaculura seminis; u, uterus with egg; vi, yolk gland; 11s, vesicula seminalis. (B) Chitinous organ with the reduced stalk (^O- (C) Chitinous portion of cirrus showing variation from (S). Much enlarged. (After von Graff.) 50 (47) The reduced spines on the terminal branch are unjointed and consist of but one piece 51 51 (52) The dorsal transverse bar bears a row of fine spines. Dalyellia mohicana von Graff 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
