. Elementary text-book of zoology, general part and special part: protozoa to insecta. Animals. JZz^. r T" -Tn Frs. 70.—Diagrammatic representation of the segmental organs of a segmented worm (after C. Samper). Di, dissepi- ment ; Wtr, ciliated funnels whicli lead into the coiled tubes. Fig. 69.—Longitudinal section through the medicinal Leech (after R. Leuckart). D, ali- mentary canal; <?, brain; Gk, ventral chain cf ganglia ; Ejc. excretory canals (seg- mental organs, water- vascular system). brate kidney is composed do not open directly to the exterior, as do the segmental organs of


. Elementary text-book of zoology, general part and special part: protozoa to insecta. Animals. JZz^. r T" -Tn Frs. 70.—Diagrammatic representation of the segmental organs of a segmented worm (after C. Samper). Di, dissepi- ment ; Wtr, ciliated funnels whicli lead into the coiled tubes. Fig. 69.—Longitudinal section through the medicinal Leech (after R. Leuckart). D, ali- mentary canal; <?, brain; Gk, ventral chain cf ganglia ; Ejc. excretory canals (seg- mental organs, water- vascular system). brate kidney is composed do not open directly to the exterior, as do the segmental organs of Annelids, but there is present on each side of the body a duct, the kidney duct, which receives the tubules of its own side and opens posteriorly into the cloaca. They also possess an important structure peculiar to the kidney of the Vertebrata known as the " Malpighian body," which consists of a capsular widening of the lumen of each. 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 Claus, Carl, 1835-1899; Metcalf Collection (North Carolina State University). NCRS. London, Swan Sonnenschein


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Keywords: ., bookcentury1800, bookdecade1890, booksubjectanimals, bookyear1892