BENZAITEN (Benten) originates from the Indian Goddess Sarasvati, known as the Goddess of music, fine arts, eloquence, literature, She is the only woman among the seven Gods of fortune in Japan. She is known to be a jealous goddess. She carries a musical instrument called the Biwa and is seen with white snakes surrounding her. Benten is the goddess for performing artists, writers and dancers, painters, sculptors and gamblers. Benten represents water and is the patron of learning, music, art, and literature.

Info From http://www.onmarkproductions.com/html/seven.shtml, http://www.asianartmall.com/7luckygodsarticle.htm and "The Anime Companion" by Gilles Poitras