The hippocampus or hippocamp, also hippokampos (plural: hippocampi or hippocamps; Greek: ἱππόκαμπος, from ἵππος, "horse" and κάμπος, "sea monster"), often called a sea-horse in English, is a mythological creature shared by Phoenician, Etruscan, Pictish, Roman and Greek mythology, though its name has a Greek origin. The hippocampus has typically been depicted as having the upper body of a horse with the lower body of a fish.
In Māori mythology, Ikaroa is the long fish that gave birth to all the stars in the Milky Way or the Mother Goddess of all the stars – ornaments of the Sky God. Ika-Roa is also an alternative name for the Milky Way.
Ika-roa was also called Mangōroa ("long shark") or Mangōroa i ata ("long shark in the early dawn").
