. A manual of zoology. . Fig. -jo. — A-D, development of Distomum hepaticum. A, ciliated larva; B, sporocyst, containing redia; in various stages of development; C, redia, containing a daughter redia, and cercaria;; D, fully developed cer- caria. , birth opening; etit, enteron of redia; eye, eye-spots; gast, gastrula stage of redia; germ, early stages in the formation of cercaria:; int, intestine of cercaria; mor, morula stage in the development of cercariav, ces, cesophagus; , oral sucker; pap, head-lobe of ciliated embryo; ///, pharynx; proc, pro- cesses of redia; , ventral (
. A manual of zoology. . Fig. -jo. — A-D, development of Distomum hepaticum. A, ciliated larva; B, sporocyst, containing redia; in various stages of development; C, redia, containing a daughter redia, and cercaria;; D, fully developed cer- caria. , birth opening; etit, enteron of redia; eye, eye-spots; gast, gastrula stage of redia; germ, early stages in the formation of cercaria:; int, intestine of cercaria; mor, morula stage in the development of cercariav, ces, cesophagus; , oral sucker; pap, head-lobe of ciliated embryo; ///, pharynx; proc, pro- cesses of redia; , ventral (posterior) sucker. (After Thomas.) food or various secretions of their host. Others are external parasites, living on some part of the outer surface of their host, and feeding on mucus or other secretions of the in-. 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 Parker, T. Jeffery (Thomas Jeffery), 1850-1897; Haswell, William A. (William Aitcheson), 1854-1925. New York, The Macmillan Company; London, Macmillan & Co. ,Ltd.
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Keywords: ., bookcentury1900, bookdecade1900, bookpublishernewyo, bookyear1900
