Thats correct. There are 2 species of African Rock Pythons, the African Rock Python (Python sebae), and the Lesser, Southern, or Dwarf African Rock Python (Python natalensis). There is one species, and two subspecies of Asiatic Rock Pythons; The Indian Python (Python molurus molurus), and the Burmese Python (Python molurus bivittatus). I believe the third subspecies of the Indian Python, the Ceylonese Python (Python molurus pimbura), was reclassified as just a color phase/variant of the Indian Python as there aren't enough distinctive differences between the two to classify the two on a subspecific level. All of these are Rock Pythons.