. Biology of the vertebrates : a comparative study of man and his animal allies. Vertebrates; Vertebrates -- Anatomy; Anatomy, Comparative. Intake Apparatus 3°7 fishes and salamanders, it is spindle-shaped and arranged to conform with the general contour of an elongated body, but in higher vertebrates it becomes saclike in shape, assuming a somewhat transverse position in the body cavity. Between these extremes may be found many gradations of form and position.. -j#- Pyloric Portion Greater Curvature SEAL BIRD VAMPIRE BAT Fig. 256. Different stomachs. The stomach of the dogfish, for example, i

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. Biology of the vertebrates : a comparative study of man and his animal allies. Vertebrates; Vertebrates -- Anatomy; Anatomy, Comparative. Intake Apparatus 3°7 fishes and salamanders, it is spindle-shaped and arranged to conform with the general contour of an elongated body, but in higher vertebrates it becomes saclike in shape, assuming a somewhat transverse position in the body cavity. Between these extremes may be found many gradations of form and position.. -j#- Pyloric Portion Greater Curvature SEAL BIRD VAMPIRE BAT Fig. 256. Different stomachs. The stomach of the dogfish, for example, instead of being a primitive straight spindle-shaped enlargement with the entrance and exit at opposite ends, is doubled back in the form of a J-shaped tube. Stomachs of similar shape occur also in the flounder, haddock, salmon, carp, sturgeon, sole, and many other fishes. In fishes such as the perch, smelt, herring, bullhead, and whiting, the loop becomes fused along its inner bend in such a way that a bag-shaped pouch, or fundus, is formed with the entrance and exit brought. 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 work.. Walter, Herbert Eugene, b. 1867; Sayles, Leonard Perkins, 1902-. New York : Macmillan Co.