. Outlines of zoology. Zoology. RESPIRATORY SYSTEM. 405 the lamprey arises as an evagination of the floor of the pharynx, and for a long time, , until the metamorphosis into the lamprey, has a glandular structure opening on the floor of the pharynx, remarkably like the endo- style of the Tunicate Oikopleura. Respiratory System. The water which enters by the mouth, after being deprived of some of its food particles, passes through the gill slits to the peribranchial chamber. On the walls of the pharynx. Ph. Fig. 129.—Diagram of Ascidian. (After Herdman.) The arrows indicate the two ope
. Outlines of zoology. Zoology. RESPIRATORY SYSTEM. 405 the lamprey arises as an evagination of the floor of the pharynx, and for a long time, , until the metamorphosis into the lamprey, has a glandular structure opening on the floor of the pharynx, remarkably like the endo- style of the Tunicate Oikopleura. Respiratory System. The water which enters by the mouth, after being deprived of some of its food particles, passes through the gill slits to the peribranchial chamber. On the walls of the pharynx. Ph. Fig. 129.—Diagram of Ascidian. (After Herdman.) The arrows indicate the two openings, the dark border the tunic. Ph., \, with gill slits; G., reproductive organs; //., heart, with blood vessels; , genital ducts ; /?., rectum ending in cloacal chamber. Surrounding the the peribranchial cavity is 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 Thomson, J. Arthur (John Arthur), 1861-1933; Newbigin, Marion I. (Marion Isabel), 1869-1934; Smith, Preserved, 1880-1941. fmo. New York, D. Appleton & Co.
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectzoology, bookyear1895
