sea horse
 海馬


 Sea horse
 1. A fabulous creature, half horse and half fish, represented in classic mythology as driven by sea dogs or ridden by the Nereids. It is also depicted in heraldry. See Hippocampus.
 2. Zool. (a) The walrus. (b) Any fish of the genus Hippocampus.
 Note: ☞ In a passage of Dryden's, the word is supposed to refer to the hippopotamus.

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 Hip·po·cam·pus n.
 1. Class. Myth. A fabulous monster, with the head and fore quarters of a horse joined to the tail of a dolphin or other fish (Hippocampus brevirostris), -- seen in Pompeian paintings, attached to the chariot of Neptune.
 2. Zool. A genus of lophobranch fishes of several species in which the head and neck have some resemblance to those of a horse; -- called also sea horse.
 Note: ☞ They swim slowly, in an erect position, and often cling to seaweeds by means of the incurved prehensile tail. The male has a ventral pouch, in which it carries the eggs till hatched.
 3. Zool. A name applied to either of two ridges of white matter in each lateral ventricle of the brain. The larger is called hippocampus major or simply hippocampus. The smaller, hippocampus minor, is called also ergot and calcar.

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 sea horse
      n 1: either of two large northern marine mammals having ivory
           tusks and tough hide over thick blubber [syn: walrus,
           seahorse]
      2: small fish with horselike heads bent sharply downward and
         curled tails; swim in upright position [syn: seahorse]