icefish
fish
Also known as: crocodile icefish, white-blooded fish
icefish, any of several different fishes, among them certain members of the family Channichthyidae, or Chaenichthyidae (order Perciformes), sometimes called crocodile icefish because of the shape of the snout. They are also called white-blooded fish, because they lack red blood cells and hemoglobin. Their blood carries much less oxygen than that of red-blooded fish, but icefish have larger hearts and gill blood vessels to circulate a greater volume of blood, and this extracts sufficient oxygen...
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