Pisces, the fish:

While it is one of the largest and most ancient constellations, Pisces is also one of the most difficult to see. According to legend the constellation is composed of two fish who are connected together by a ribbon. The fish are the goddess Aphrodite and her son Eros (Roman: Venus and Cupid). They turned themselves into fish in order to escape from the monster Typhon. They then connected themselves together with a ribbon in order not to be separated. The constellation is located in an area of the sky known as "the Sea" or "the Water", which is full of water related constellations. Pisces contains only faint stars, the stars however do seem to form two small circlets connected together by a string. The constellation is southeast of Pegasus, located between Aquarius and Aries.