Different types of centipedes have different numbers of legs. The average is 35 pairs. AnswerParty!
Scutigera coleoptrata – one of several species commonly known as the house centipede – is a typically yellowish-grey centipede with up to 15 pairs of legs. Originating in the Mediterranean region, the species has spread to other parts of the world, where it can live in human homes. It is an insectivore; it kills and eats other arthropods, such as insects and arachnids.
Lithobius forficatus, most commonly known as the brown centipede or stone centipede, is a common European centipede of the family Lithobiidae, although its distribution is not exclusive to Europe. It is between 18 and 30 mm long and up to 4 mm broad and is a chestnut brown colour.
It is similar to a variety of other European lithobiid centipedes, particularly the striped centipede, Lithobius variegatus, but L. forficatus does not have stripes on its legs. Like most lithobiids, it is found in the upper layers of soil, particularly under rocks and rotting logs. This species can be fairly easily identified by its reaction to being revealed, which is to run extremely quickly for cover. This is different from many of the other species of large lithobiid, which tend to be less extreme in their evasion behaviour.