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Chamaesomatidae

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Family of millipedes

Chamaesomatidae
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Subphylum: Myriapoda
Class: Diplopoda
Order: Chordeumatida
Superfamily: Brannerioidea
Family: Chamaesomatidae

Chamaesomatidae is a family of millipedes belonging to the order Chordeumatida. This family contains 28 species distributed among 11 genera. These millipedes are found in Europe and North Africa.

Description

These millipedes range from 3.3 mm to 12 mm in length. Many species dwell in caves. The paranota are small and humplike. Adult millipedes in this family have 26, 28, or 30 segments (counting the collum as the first segment and the telson as the last). This family includes the species Chamaesoma broelemanni, notable as one of only a few chordeumatidan species with only 26 segments in adults, four fewer segments than typically found in adults in this order. Most genera in this family lack pigment.

Adult males in this family feature anterior gonopods derived from the eighth leg pair and posterior gonopods derived from the ninth leg pair. The anterior gonopods each include a distal element, the telopodite, which is usually well developed, and a basal element, the angiocoxite, which is derived from the base (coxa) of the eighth leg pair, as well as another structure, the colpocoxite, which is thought to be permanently extruded and sclerotized walls of the coxal gland. The anterior gonopods sometimes feature flagella. The posterior gonopods each feature a telepodite with either one or two segments. The eleventh pair of legs in adult males usually feature coxal hooks.

Genera

This family includes 11 genera:

References

  1. ^ "Chamaesomatidae". www.gbif.org. Retrieved 6 June 2021.
  2. ^ Enghoff, Henrik; Golovatch, Sergei; Short, Megan; Stoev, Pavel; Wesener, Thomas (2015-01-01). "Diplopoda — taxonomic overview". Treatise on Zoology - Anatomy, Taxonomy, Biology. The Myriapoda, Volume 2: 363–453 . doi:10.1163/9789004188273_017. ISBN 978-90-04-15612-8.
  3. David, Jean-Francois (1989). "Le cycle biologique de Chamaesoma broelemanni Ribaut et Verhoeff, 1913 (Diplopoda, Craspedosomatida) en forêt d'Orléans (France)". Bulletin du Muséum National d'Histoire Naturelle, Section A (in French). 4:11 (3): 639–647. doi:10.5962/p.288286. S2CID 132547501 – via Biodiversity Heritage Library.
  4. 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. doi:10.1111/j.1096-3642.1993.tb00305.x.
  5. ^ Enghoff, Henrik; Reboleira, Ana Sofia P. S. (2013-11-12). "A new cave-dwelling millipede of the genus Scutogona from central Portugal (Diplopoda, Chordeumatida, Chamaesomatidae)". Zootaxa. 3736 (2): 175–186 . doi:10.11646/zootaxa.3736.2.5. ISSN 1175-5334.
  6. Shear, William A.; Leonard, William P. (2007-07-09). "Additions to the milliped family Caseyidae. I. Caseya richarti, n. sp., and new records of previously described species in the genus Caseya Cook and Collins 1895 (Diplopoda, Chordeumatida, Caseyidae)". Zootaxa. 1524 (1): 23–34 . doi:10.11646/zootaxa.1524.1.2. ISSN 1175-5334.
Taxon identifiers
Chamaesomatidae
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