. Fig. 146.—Egg of the common liver fluke {Fasciola hejjatica), exa- shortly after it was taken from the liver of a sheep. At one end is seen the lid or operculum, o ; near it is the segmenting ovum, e ; the rest of the space is occupied by yoke cells which serve as food; all are granular, but only three are thus drawn. X 680. (After Thomas, 1883, p. 281, Fig. 1.) ^..

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