. Elementary text-book of zoology. Zoology. FIG. 441.—a, Larva of Ephemera vrith seven pairs of ti-acheal Kills Kt, slightly Tk, An isolated tracheal gill, strongly magnified. I, Tracheal system of an Agrimi Inrva (after L. Dufour); Tst, tracheal trunk ; Nn, accessory ejTes. In the last case the walls of the rectum are very muscular, and are capable of regularly pumping in and out water, thus giving rise to a kind of respiratory Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of th
. Elementary text-book of zoology. Zoology. FIG. 441.—a, Larva of Ephemera vrith seven pairs of ti-acheal Kills Kt, slightly Tk, An isolated tracheal gill, strongly magnified. I, Tracheal system of an Agrimi Inrva (after L. Dufour); Tst, tracheal trunk ; Nn, accessory ejTes. In the last case the walls of the rectum are very muscular, and are capable of regularly pumping in and out water, thus giving rise to a kind of respiratory 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
