Peterjohnsiidae Explained

Peterjohnsiidae is a small family of millipedes belonging to the order Chordeumatida.^[1] The family was first described in 1987 by Jean-Paul Mauriès.^[2] These millipedes range from 3 mm to 8 mm in length and are found in Australia.^[3] Species in this family exhibit sexual dimorphism in segment number: adult males have 30 segments, but adult females have 32 segments (counting the collum as the first segment and the telson as the last).^[4] ^[5] In adult males in this family, the gonopod complex involves three leg pairs (pairs 8 through 10) rather than just the two (pairs 8 and 9) usually modified into gonopods in this order.^[6]

Genera:

Peterjohnsia Mauriès, 1987

Notes and References

Web site: Peterjohnsiidae . www.gbif.org . 6 June 2021 . en.
Web site: Family PETERJOHNSIIDAE Mauriès, 1987 . 2023-06-03 . Australian Faunal Directory . Australian Government.
Book: Enghoff . Henrik . The Myriapoda . Golovatch . Sergei . Short . Megan . Stoev . Pavel . Wesener . Thomas . Koninklijke Brill NV . 2015 . 978-90-04-15612-8 . Minelli . Alessandro . 2 . Leiden, The Netherlands . 418 . Diplopoda — Taxanomic Overview.
Enghoff. Henrik. Dohle. Wolfgang. Blower. J. Gordon. 1993. Anamorphosis in Millipedes (Diplopoda) — The Present State of Knowledge with Some Developmental and Phylogenetic Considerations. Zoological Journal of the Linnean Society. 109. 2 . 103–234. 10.1111/j.1096-3642.1993.tb00305.x .
Mauries. Jean-Paul. 1987. Craspedosomid Millipedes Discovered in Australia: Reginaterreuma, Neocambrisoma and Peterjohnsia, New Genera (Myriapoda: Diplopoda: Craspedosomida). Memoirs of the Queensland Museum. 25. 1 . 107–133. Biodiversity Heritage Library.
Shear . W. A. . William Shear . Mesibov . R. . Robert Mesibov . 1994 . Australian chordeumatidan millipeds. I. New observations on the genus Peterjohnsia Mauries, with the description of the a new species from Tasmania (Diplopoda : Chordeumatida : Peterjohnsiidae) . Invertebrate Systematics . en . 8 . 2 . 535–544 . 10.1071/it9940535 . 1447-2600.