. The animal kingdom : arranged after its organization; forming a natural history of animals, and an introduction to comparative anatomy. Zoology. Fig. 6o.—Cape ButTaiu. THE NINTH ORDER OF MAMMALIANS,- CETACEA,— Consists of animals without Lind-limbs : the trunk being continued by a tliick tail, which tenniiuites in a horizontal cartilaginous fin, while the head is connected to tlie body by so short and thick a ueck, that no diminution of its circumference is perceptible: this neck consists of very slender cervical vertebraj, that arc i)artly anchylosed or soldered together. Tlie first bones o
. The animal kingdom : arranged after its organization; forming a natural history of animals, and an introduction to comparative anatomy. Zoology. Fig. 6o.—Cape ButTaiu. THE NINTH ORDER OF MAMMALIANS,- CETACEA,— Consists of animals without Lind-limbs : the trunk being continued by a tliick tail, which tenniiuites in a horizontal cartilaginous fin, while the head is connected to tlie body by so short and thick a ueck, that no diminution of its circumference is perceptible: this neck consists of very slender cervical vertebraj, that arc i)artly anchylosed or soldered together. Tlie first bones of their anterior extremities are shortened, and the succeeding ones fiattcned and enveloped in a tendinous membrane, which reduces them to the condition of true fins. Hence the external form is absolutely that of fishes, except that the latter have the tail-fin vertical. They always therefore remain in the water; but as they breathe by lungs, they are ci)nii)elled to return frecpiently to the surface to take in fresh supplies of ah.* Their warm blood; ears that open externally, though by very small orifices; their vivii)arous generation, mamma: by which they suckle their young, and all the details of their anatomy, sufficiently distinguish them from Fig. C6.—Swimming Paw of \\'U: • The Urger BpccicH, however, will rem&iii more than an hour Dcncnth the surface : in reference tu whicli fHtulty, these aniiuHls have cfiput iuuM rcscrvi» for Hrtcriul blood alonir ihc <lursal region, luid even within the head; hence, lo uAytjeuatc the grcut voluiuc ut blood required to store these cavities, they continue breathing fi»r a certain regular period, at each time of coming to the surface for that purpose.— 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 Cuvier, Georges, baron, 1769-18
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Keywords: ., bookauthorwe, bookcentury1800, bookdecade1860, booksubjectzoology
