 Another theory draws the origin of the name from an Ancient Greek word for sickle, which is the shape formed by the cliffs surrounding the town's harbor.According to a third theory, the name was derived from the name of the ancient fortification called Tarpano or Tarponio, the remains of which can still be seen on the hill overlooking the harbor.Finally, the sea cucumber is called a "trp" in Croatian, leading some to make the connection.