. A manual of zoology. Zoology. II. TREMATODA: 245 Order II. Distomeae (Digenea). The entoparasitic Trematodes usually occur as sexual animals in the digestive tract and its appendages; more rarely in blood-vessels, urogenital. ^S^'cf^-siy^' Fig. 220.—Development of Distomum hepaticum (from Korschelt-Heider after Leuckart). .4, young larva; B, sporocyst from the lung of Limnaa; C, older sporocyst with rediie; D, redia which has produced redise internally; E, redia with cercarise; F, cercaria; G, encysted Distomum. A, eye spot; D, digestive tract; Dr, glands; Ex, ciliated lobules a
. A manual of zoology. Zoology. II. TREMATODA: 245 Order II. Distomeae (Digenea). The entoparasitic Trematodes usually occur as sexual animals in the digestive tract and its appendages; more rarely in blood-vessels, urogenital. ^S^'cf^-siy^' Fig. 220.—Development of Distomum hepaticum (from Korschelt-Heider after Leuckart). .4, young larva; B, sporocyst from the lung of Limnaa; C, older sporocyst with rediie; D, redia which has produced redise internally; E, redia with cercarise; F, cercaria; G, encysted Distomum. A, eye spot; D, digestive tract; Dr, glands; Ex, ciliated lobules and main trunks of excretory system; G, birth opening; Kz, germ cells; N, nervous system. organs, and ccelom of vertebrates. As inhabitants of the dark they have, with few exceptions, lost the eyes, which appear in larval life, and not always then. Since not exposed to danger of being pulled from the host,. 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, 1850-1937; Kingsley, J. S. (John Sterling), 1854-1929, ed. and tr. New York, H. Holt
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectzoology, bookyear1912
