Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada
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Order Spirostreptida

Female Millipede - Orthoporus texicolens - female Millipede - Orthoporus ornatus Dilopoda - Orthoporus ornatus Orthoporus sp. - Orthoporus Diplopoda - Choctella cumminsi Orthoporus sp. - O. ornatus or O. texicolens? - Orthoporus Orthoporus sp. - O. ornatus or O. texicolens? - Orthoporus Trigoniulus corallinus? - Orthoporus
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Myriapoda (Myriapods)
Class Diplopoda (Millipedes)
Order Spirostreptida
Explanation of Names
Spirostreptida Brandt 1833
12 families worldwide, 3 in North America; ~1000 described spp. worldwide
Up to 28 cm (world's largest millipedes)(1)
Snake-like body. Eyes usually present. Dorsal groove mainly absent except in some Cambalidae. Paranota absent. 30‒90 segments.
mainly tropical; Africa, S. & E. Asia, Australia, and the Western Hemisphere (US to Argentina)
In the southwestern US millipedes of the genus Orthoporus often congregate in large numbers. Three species occur in states adjacent to Mexico. (2)
Works Cited
1.Centipedes and Millipedes, with an Emphasis on North American Fauna
Rowland M. Shelley. 1999. Emporia State University.
2.Spiders and Their Kin: A Golden Guide from St. Martin's Press
Herbert W. Levi, Lorna R. Levi, Nicholas Strekalovsky. 2001. St. Martin's Press.