. Elementary text-book of zoology. Zoology. FIG. 162.—Longitudinal section through Si/con raphanut, slightly mag- nified. 0, Osculum with collar of spicules; Rt, radial tubes which open into the central 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; Sedgwick, Adam, 1854-1913; Sinclair, F. G. (Frederick Granville), b. 1858. New York : Macmillan

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Keywords: ., bookcentury1800, bookdecade1880, booksubjectzoology, bookyear1884