Complex sentence: The head has a pointed snout, a single row of teeth in the lower jaw, and two vestigial eyes covered with skin, with a pair of protrusible tentacles between the eyes and the nostrils.
Split into simpler sentences: The head has a pointed snout, a single row of teeth in the lower jaw and two vestigial eyes covered with skin. There is a pair of protrusible tentacles between the eyes and the nostrils.