Ключевые слова: animal, aquatic, background, carapace, case, chalk, chiton, clam, conch, crustacean, decoration, fish, frame, framework, hard, inside, isolated, life, limestone, limestone shell, many, marine, molluscan, mollusk, monetaria, more, nature, nut, object, ocean, pattern, scallop, sea, seafood, seashell, sedment, shape, shell, shell frame, shellfish, shuck, skeleton, snail, spiral, symbol, texture, textured, tropical, tusk,