Capricornus, the sea-goat:

Capricornus is one of the ancient constellations of the zodiac. Although it is a fairly large constellation, its stars are dim and it is difficult to see unless the sky is completely dark. Capricornus represents the Greek god Pan who was often represented as partially being a goat. In order to escape the monster Typhon, Pan dived into a river and attempted to change himself into a fish. Only part of him transformed so he had the head and body of a goat and the rear section of a fish. Zeus being amused by this put the image among the stars as the constellation Capricornus. The constellation is located between Aquarius and Sagittarius, southeast of the Summer Triangle.