All about Seahorses for your smartphone, your iPhone or any phone.Animations of hippocampus. Small marine animals with head similar to horses. ||| The hippocampus or seahorses are small marine fish. They are characterized by their head, like the horses. There are 54 species of seahorses. They swim very slow. Physically they have the long snout, tail coiled, small wings and scaleless body formed by rings. The female inserts eggs in the brood pouch of the male and there are fertilized. They inhabit in tropical or temperate waters. The hippocampus live among corals and algae near the coasts. Another characteristic is that they can change color for camouflage.