Front caption: The Sea Horse (Hippocampus hudsonius) is found along the Atlantic Coast from Massachusetts to Florida. It reaches a length of nearly seven inches. The largest species known, inhabiting the west coast of Mexico, attains a length of twelve inches. The eggs of the sea horse are carried in a pouch by the male until hatched. The sea horse is the only fish with a grasping tail. It is usually brownish in color, but specimens have been received which were entirely yellow. The head is horse-like in appearance. The entire fish is enclosed in a bony coat of mail, inflexible except in neck and tail.
The specimens exhibited in the New York Aquarium are captured late in summer in the bays of Long Island and New Jersey. They are kept in a tank of flowing sea water and are fed on minute crustacea called Gammarus, gathered from sea weed along the ocean beaches. The sea horse requires live food and will not live without it. It has not yet been successfully kept in small aquaria. Being strictly marine, it cannot live in fresh water. Dealers in aquaria supplies do not attempt to keep it. Many of the sea horses kept in the New York Aquarium have bred in captivity, but the young have never been raised, as suitable live food has not yet been discovered for mouths so small as those of young sea horses.