Spirostreptidae is a family of millipedes in the order Spirostreptida. It contains around 100 genera distributed in North and South America, the eastern Mediterranean, continental Africa, Madagascar, and Seychelles. It contains the following genera: - Aethiopistreptus - Alloporus - Alogostreptus - Anastreptus - Andineptus - Anethoporus - Archispirostreptus - Attemsostreptus - Aulonopygus - Autostreptus - Bicoxidens - Brasilostreptus - Brevitibius - Bucinogonus - Caicarostreptus - Calathostreptus - Calostreptus - Camaricoproctus - Cearostreptus - Chamberlineptus - Charactopygus - Cladodeptus - Cladostreptus - Cochleostreptus - Cochliogonus - Collostreptus - Conchostreptus - Demangeptus - Diaporus - Dicyclostreptus - Eiphorus - Ellateptus - Epistreptus - Eumekius - Exallostreptus - Exospermastix - Exospermitius - Furcillogonus - Globanus - Gonepityche - Graphidostreptus - Guanabarastreptus - Guanabarostreptus - Guaporeptus - Guviogonus - Guyanostreptus - Gymnostreptus - Haplogonopus - Helicogonus - Helicosolenus - Hemigymnostreptus - Heteropyge - Heterostreptus - Humilistreptus - Involverostreptus - Ischiotrichus - Isophyllostreptus - Isoporostreptus - Kartinikus - Kochliogonopus - Kochliogonus - Krugerostreptus - Lobogonus - Lophogonus - Lophostreptus - Mardonius - Mayastreptus - Megagymnostreptus - Megaskamma - Metagonocoelius - Metriostreptus - Microtrullius - Minasgonus - Myostreptus - Nanostreptus - Nesostreptus - Obelostreptus - Odontostreptus - Onychostreptus - Ophistreptoides - Ophistreptus - Oreastreptus - Orthogoneptus - Orthoporoides - Orthoporus - Paulistostreptus - Pemptoporus - Perizonopus - Perustreptus - Phallorthus - Plagiotaphrus - Plusioporus - Porostreptus - Pseudogymnostreptus - Pseudotibiozus - Ptenogonostreptus - Ptilostreptus - Rhamphostreptus - Rhapidostreptus - Rhodesiostreptus - Rondostreptus - Rubanostreptus - Rutabulogonus - Sagmatostreptus - Scaphiostreptus - Skytostreptus - Sooretama - Sphaeromerus - Spirocyclistus - Spiropoeus - Spirostreptus - Stenostreptus - Streptolus - Synophryostreptus - Telodeinopus - Telomicropus - Termatodiscus - Tibiozus - Tomogonus - Torynopus - Trachystreptus - Triaenostreptus - Trichogonostreptus - Tropitrachelus - Tubostreptus - Urostreptus - Urotropis - Venezueneptus - Vilcastreptus - Zantekius