Archispirostreptus gigas, known as the giant African millipede or shongololo, is the largest extant species of millipede, growing up to 33.5 centimetres (13.2 in) in length, 67 millimetres (2.6 in) in circumference. It has approximately 256 legs, although the number of legs changes with each molting so it can vary according to each individual. A docile species, A. gigas is commonly seen in the pet trade; however, imports of A. gigas, as well as a number of other millipedes, into the USA are banned due to agricultural damage caused by the mites they carry.