Pill Millipede

The rules for different species are different. As per the above heading this is Ommatoiulus sp. which has its own specific rules, but even they vary, depending on male or female. The first and last segments have none. Here is a diagram for O. moreleti male https://en.wikipedia.org/wiki/Ommatoiulus_moreleti#/media/File:Ommatoiulus_moreleti_anterior_anatomy.tiff but, this almost certainly is not that species but one of the many undocumented localised species so it is necessary to count all the legs in a lab. Segments 6 & 7 have no legs as they are used for the reproductive system The number of segments with only one pair of legs can vary from 1 up to 7 or more. The figure for this one is closer to about 180 at most.