. Fourteen weeks in zoology. Zoology. 84 SUBKINaDOM VERTEBRATA. of the head ; fore-limbs, which, like the human arm, consist of a shoulder-blade, humerus, radius, ulna, and five fingers; a tail, horizontally flattened and fluked; and no hind limbs. They are subdivided into Families, according to the presence or absence of teeth: CETACEA 'â¢J Teeth in both jaws. " " lower jaw. " wajjting. Delphinidae, Physeteridse, BaUenidse, Dolphin. Sperm Whale, Bight Whale. Fig. ISS. Delphinidae. â The Common Porpoise frequents the mouths of rivers, often venturing some distance up stream in p
. Fourteen weeks in zoology. Zoology. 84 SUBKINaDOM VERTEBRATA. of the head ; fore-limbs, which, like the human arm, consist of a shoulder-blade, humerus, radius, ulna, and five fingers; a tail, horizontally flattened and fluked; and no hind limbs. They are subdivided into Families, according to the presence or absence of teeth: CETACEA 'â¢J Teeth in both jaws. " " lower jaw. " wajjting. Delphinidae, Physeteridse, BaUenidse, Dolphin. Sperm Whale, Bight Whale. Fig. ISS. Delphinidae. â The Common Porpoise frequents the mouths of rivers, often venturing some distance up stream in pursuit of herring and other migratory fish. * The Delphinus delphis is the Dolphin f of Grecian mythology. The Beluga of the north- ern Atlantic coast is re- . ^ r. â , markable when mature for Phocana commums. Common Porpoise. jV. , ., n ⢠.j. the clear white hue oi its skin, though when young it is black. The Nariuhal, or unicorn, has one of its upper canines developed into a straight, spirally-twisted pole of ivory, seven to ten feet long. J Fig. ISU. _ Fig. 135^. 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 Steele, Joel Dorman, 1836-1886. New York, Chicago [etc. ] A. S. Barnes & Company
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectzoology, bookyear1872
