Spirostreptidae is a family of large, round-backed millipedes within the order Spirostreptida, often referred to as giant millipedes, containing around 100 genera distributed across Africa, Madagascar, the Americas, and the Seychelles.
Key Facts About the Family (Spirostreptidae) & Genus (Spirostreptus):Classification: They are part of the class Diplopoda and order Spirostreptida. The genus Spirostreptus Brandt, 1833, is a key group within this family.
Size and Structure: These are among the largest millipedes in the world, with some species, such as the Giant African Millipede, reaching lengths of up to \(38.5 \text{ cm}\) (\(15.2 \text{ in}\)) and \(67 \text{ mm}\) (\(2.6 \text{ in}\)) in circumference.
Leg Count: Despite being called "thousand-leggers," members like the giant African millipede typically have between 300 and 400 legs (roughly 256 or more depending on species and molting).
