. A text-book of invertebrate morphology. Invertebrates. TYPE PLATTHELMINTHEa. 153 ductive organs are present in several sets succeeding one an- other, without any external indications of a reduplication of parts. In TricBnopJiorus the multiplication of the sets of re- productive organs is indicated, however, externally bj"^ indis- tinct constrictions of the body, an indication of a tendency. Fig. 81.—^, Garyopkyllmus mutabilU (after Stein) ; B, Tmnia saginata (a£ter Lbuckart) ; 0, anterior end of T. saginata (after Lbuokart). od = oviduct. ^ = vas deferens. ov = ovary. vi = yolk-glanda.


. A text-book of invertebrate morphology. Invertebrates. TYPE PLATTHELMINTHEa. 153 ductive organs are present in several sets succeeding one an- other, without any external indications of a reduplication of parts. In TricBnopJiorus the multiplication of the sets of re- productive organs is indicated, however, externally bj"^ indis- tinct constrictions of the body, an indication of a tendency. Fig. 81.—^, Garyopkyllmus mutabilU (after Stein) ; B, Tmnia saginata (a£ter Lbuckart) ; 0, anterior end of T. saginata (after Lbuokart). od = oviduct. ^ = vas deferens. ov = ovary. vi = yolk-glanda. t = testis. vid = yolk-duct. vs = vesicula seminalis. for the individual to separate into a number of parts, each possessing a certain amount of individuality. This tendency reaches its highest development in such forms as Bothrio- cephalus and Tcenia (Fig. 81, B), which consist of an anterior portion, the 8colex (Fig. 81, C), provided with organs of adhe- sion in the form of suckers, accompanied or not by chitinous. 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 McMurrich, J. Playfair (James Playfair), 1859-1939. New York, H. Holt and Company


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Keywords: ., bookcentury1800, bookdecade1890, bookpublishernewyo, bookyear1894