The dwarf Burmese python (Python bivittatus progschai) is an insular dwarf subspecies of the Burmese python. The dwarf Burmese python is native to the Indonesian islands of Java, Bali, Sumbawa, and Sulawesi. The dwarf subspecies seems to have a maximum length of 5.9 ft (1.8 m). In 2009, the dwarf Burmese python was officially recognized as a subspecies of the Burmese python.
They are often found in forests, and sometimes near bodies of fresh or brackish water. The subspecies seems to prefer hiding among old logs and tree stumps. However, like their larger mainland cousins, they also seem to enjoy the occasional dip in fresh or brackish water. They do seem to mostly nocturnal, with increased active between the hours of dusk to dawn.