. The complete aquarium book; the care and breeding of goldfish and tropical fishes. Aquariums; Goldfish. 140 MARINE AQUARIA respond by slight movements. Care on this point is of vital importance, as decomposition is very rapid. Sea Horses. Owing to the vastness of the field we cannot here go into a detailed list of marine aquarium inhabitants, but we cannot pass the subject without special mention of those quaint fishes, sea horses {Hippocampus). Although appearing like some mythological animal in miniature, they are true fishes. They make a very striking appearance in the aquarium, always at
. The complete aquarium book; the care and breeding of goldfish and tropical fishes. Aquariums; Goldfish. 140 MARINE AQUARIA respond by slight movements. Care on this point is of vital importance, as decomposition is very rapid. Sea Horses. Owing to the vastness of the field we cannot here go into a detailed list of marine aquarium inhabitants, but we cannot pass the subject without special mention of those quaint fishes, sea horses {Hippocampus). Although appearing like some mythological animal in miniature, they are true fishes. They make a very striking appearance in the aquarium, always attracting great attention. Their tails are prehen- sile and are used much the same as a monkey's, fastening themselves to twigs, bits of grass or any small object, ready to let go in a moment, swim a short distance and fasten somewhere else or perchance socially link tails with another. Their movements through the water might be described as being very sedate. Locomotion is produced mainly by vibra- tion of the dorsal fin, the body being tipped forward at a slight angle. Although the movement through the water is not rapid, it has the appearance of being accomplished entirely without effort. The breeding habits of the sea horse are also most peculiar. The female develops an intromit- tent organ as the breeding season approaches, while the brood-pouch on the belly of the male becomes thickened and vascular. The fishes face each other, the female advances, places one or more eggs in the pouch of the male, retreats and repeats until the spawning is finished. When the eggs have hatched, the pouch splits slightly and he works the young out of it by gently rubbing against a firm sur- face. The young are as perfectly formed as the parents. Sea horses feed upon small marine Crus- tacea about equal in size to daphnia. Some European aquarists claim to have gotten them to eat dried shrimp, but, so far as we are able to learn, nobody in America has been successful in this. Although differen
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