. Elements of zoölogy. Zoology. 3io BACKBONED ANIMALS. whales are either armed with conical teeth or plates of fibrous matter called whalebone. The amount of blood in the whale is enormous ; the aorta or great artery from the heart being alone one foot across, and probably at every pulsation of the great heart ten or fifteen gallons of blood are thrown out. The cetaceans range in size from. Fig. 335.—White whale {Beluga catodon), a cetacean that has been carried alive from America to England by steamer, covered with, sea-weed and dashed frequently with water. the porpoise, three to five feet l
. Elements of zoölogy. Zoology. 3io BACKBONED ANIMALS. whales are either armed with conical teeth or plates of fibrous matter called whalebone. The amount of blood in the whale is enormous ; the aorta or great artery from the heart being alone one foot across, and probably at every pulsation of the great heart ten or fifteen gallons of blood are thrown out. The cetaceans range in size from. Fig. 335.—White whale {Beluga catodon), a cetacean that has been carried alive from America to England by steamer, covered with, sea-weed and dashed frequently with water. the porpoise, three to five feet long, to the rorqual, one hundred and three feet in length. Toothed Whales (Delphinoidea).—This group in- cludes the dolphins, porpoises, white whales, etc. The common dolphin has long, extended jaws armed with from forty to forty-seven conical teeth, and a prominent dorsal ridge or fin. The porpoises,* the orca,f or killer, the blackfish, or round-headed grampus, the white whale, Be- luga (Fig. 335), sperm-whale, and narwhal are allies. * A friend of the author, in attempting to capture a herd of por- poises, drove them into a creek, and the capture was about to commence, when the porpoises rushed towai-d the boats, several leaping completely over them, and thus reaching the sea. f The orca also preys upon the young cf the walrus. In the stomach of one have been found the remains of thirteen porpoises and fourteen 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 Holder, Charles Frederick, 1851-1915; Holder, Joseph Bassett, 1824-1888, joint author. New York : D. Appleton and company
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectzoology, bookyear1884
