How to use Cetacea in a sentence

cetacea
  • Of the marine orders of Sirenia and Cetacea the Dugong, Halicore, is exclusively found in the Indian Ocean; and a dolphin, Platanista, peculiar to the Ganges, ascends that river to a great distance from the sea.

    0
    0
  • See Cetacea.

    0
    0
  • The cetacea and a few rodents are also without it.

    0
    0
  • There are no large mammals in all this extensive region except the Cetacea and a species of the Phocidae of southern waters.

    0
    0
  • The Cetacea, which frequent these southern waters, are represented by four species - two dolphins and the sperm and right whale - and the Phocidae by six species, one of which (Phoca lupina) differs but little from the common seal.

    0
    0
    Advertisement
  • See CETACEA.

    0
    0
  • Its function in the hairless Cetacea is discharged by the specially modified and thickened layer of fatty tissue beneath the skin known as " blubber."

    0
    0
  • These are absent in the Cetacea alone.

    0
    0
  • With the exception of the Cetacea, most of the Edentata, and the Sirenia, in which the teeth, when present, have been specialized in a retrograde or aberrant manner, the placental mammals as a whole have a dentition conforming more or less closely to the foregoing type.

    0
    0
  • The mouth of the great majority of mammals is peculiar for being guarded by thick fleshy lips, which are, however, absent in the Cetacea; their principal function being to seize the food, for which purpose they are endowed, as a rule, with more or less strongly marked prehensile power.

    0
    0
    Advertisement
  • As regards aquatic mammals, the greater number of the Cetacea, or whales and dolphins, have, as might be expected, a very wide distribution in the ocean.

    0
    0
  • The Cetacea, however, are by no means limited to the ocean, or even to salt water, some entering large rivers for considerable distances, and others being exclusively fluviatile.

    0
    0
  • The great difference in the manner of life of the sea-cows, or Sirenia, as compared with that of the Cetacea, causes a corresponding difference in their geographical distribution.

    0
    0