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Fresh Water Clams: Twice a week is often enough to feed the various forms. Small pieces of macerated oysters, clams or fish make a fine food and they should be dropped near the mouth of the animal by means of forceps. The juice of oysters and clams also makes a fine food and can be dropped by means of a pipette into the mouths of such animals as the Metridium, Thyone and Cucumaria. Fresh water clams may be used as well as salt-water clams and even small pieces of fresh-water fish will be readily devoured.
The marine bivalves show remarkable diversity in shape and mode of life. Most, however, are sand dwellers and live just below the surface of the muddy sand where they keep in contact with food-laden ocean water by means of two fleshy, tubular siphons. In the Venus clams, the surf clams (Alactridae), and Lucine clams the siphons are very short, while in others, such as the common soft shelled clam {My a) and the angel wing of Florida (Barnea costata) which live far below the surface, the siphons are encased in a very long muscular tube.
If your dog swims in salt water as part of his boating experience, wash him off with fresh water at least once a day, dry him well, and keep him away from drafts. Salt water, if left on the dog, can cause skin problems.
Some pets will drink excessive amounts of salt water, causing them to become nauseous. If that happens, give a small amount of Pepto-Bismol and do not feed the animal for a while. Fresh water should be available to your dog at all times; renew it four or five times a day, if necessary, to make sure it is fresh and pure. Excessive ice water, however, can lead to diarrhea. |
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