. A manual of zoology. Zoology. 252 PLATHELMIXTHES hooks. These parts are at tlrst inverted and only come to their definitive position on xhe outside of tire scolex -when the hitter is protruded as one v-ould turn out the imger of a glove. Rarely is tlie scolex protruded at tliis time (cysticercus of the mouse liver) and begins the formation of proglottids. Even in this case they do not become sexually mature until in the intestine of the cat. The furtlier development follows when the cysticercus is taken into the stomach of the new host ^\^â ^en man, for instance, eats infected ('measly'). Fi
. A manual of zoology. Zoology. 252 PLATHELMIXTHES hooks. These parts are at tlrst inverted and only come to their definitive position on xhe outside of tire scolex -when the hitter is protruded as one v-ould turn out the imger of a glove. Rarely is tlie scolex protruded at tliis time (cysticercus of the mouse liver) and begins the formation of proglottids. Even in this case they do not become sexually mature until in the intestine of the cat. The furtlier development follows when the cysticercus is taken into the stomach of the new host ^\^â ^en man, for instance, eats infected ('measly'). Fig. 230.âStructure and development of the c\'sticerus (C. cellulosa^ of Tirnia solium), a, measly meat, natural size; below an escaped cysticercus; b, cysticercus, with scolex, enlarged; c-c. development of the scolex, more enlarged; c, young cysticercus with blastema of scolex (above) and water-vascular net; </, c, dil^'crent stages of scolex in receptaculum, the cysticercal wall mostly remo\'ed. pork, the cysticerci are freed by action of the digestive juices and the scolex is everted. The embryo passes to the intestine, becomes attached and, surrounded by nourishment, begins to grow, the bladder remaining at- tached to the hinder end. Soon the formation of proglottids begins in the piece conirecting the bladder with the scolex So rapid is the growth that in ten or twelve weeks Tccuta soliuin begins to set proglottids free. In cases where the bladder reaches a considerable size it may produce more than a single scolex. The bladder of Ca-nunis ccnhralis, which lives in the brain of sheep, produces hundreds of scolices. The number is even greater in Tail id ccliiiiococcus, in which the bladder increases by budding, and by the. 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 Hertwig, Richard, 18
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectzoology, bookyear1912
