תויות של קופסאות גפרורים יפניות של צב עם אצות על הגב
לפי המסורת היפנית קיים צב עם אצות על הגב שנקרא "מינוגם". להן הסבר באנגלית:
The minogame is said to live at least a thousand years (with some living up to 10,000 years!) and have a long, hairy tail, which is actually seaweed and algae that have grown on its shell due to its ripe old age! It has very similar to the real-life common tortoise, which can live for hundreds of years. In Japanese culture, the minogame represents longevity and wisdom, and is a long-revered symbol of both. In art, it is often shown with other gods and symbols of longevity, such as the crane, or Taoist deities such as Jurōjin. The minogame is also depicted with the Three Jewels, which represent fortune.