Eutrichodesmus

Last updated

Eutrichodesmus
Eutrichodesmus aster (male).JPG
Eutrichodesmus aster
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Animalia
Phylum: Arthropoda
Subphylum: Myriapoda
Class: Diplopoda
Order: Polydesmida
Family: Haplodesmidae
Subfamily: Haplodesminae
Genus: Eutrichodesmus
Silvestri, 1910
Synonyms [1]
  • EutrichodesmusSilvestri, 1910
  • DimorphodesmusMurakami, 1966
  • AscetophacusHoffman, 1977
  • CerastelachysHoffman, 1977
  • DyomerothrixHoffman, 1982
  • ParapauroplusZhang in Zhang & Wang, 1993
  • PocillidorsusZhang in Zhang & Wang, 1993

Eutrichodesmus is a genus of millipedes in the family Haplodesmidae. [2] Containing 54 species, this genus is among the genera with the greatest number of species not only in the family Haplodesmidae but also in the order Polydesmida. [3] [4] This genus includes the species E. peculiaris , notable for featuring sexual dimorphism in segment number: The adult females have 20 segments (counting the collum as the first segment and the telson as the last), but the adult males have only 19 segments. [5] Millipedes in this genus are found in southern Japan, Taiwan, southern China, mainland Southeast Asia, Indonesia, and Vanuatu. [3]

Contents

Description

Millipedes in this genus are small, ranging from 3.5 mm to 14 mm in length. These millipedes can have 19 or 20 segments. Species in this genus are capable of volvation, which is usually complete but sometimes incomplete. [3]

The basal element of the gonopod (coxa) in adult males in this genus usually features abundant setae. The distal element of the gonopod (telopodite) is usually slender and long, with dense setae on the basal half. The telopodite often features a conspicuous outgrowth on the lateral side. The distal part of the telopodite is conspicuous and well developed but rarely branches into a separate lobe. [3] [6]

The millipedes in this genus resemble those in the genus Doratodesmus , which are also capable of volvation. Like the adult males in Eutrichodesmus, those in Doratodesmus also usually feature gonopod coxae with abundant setae. The adult males in Doratodesmus, however, feature gonopod telopodites that are usually stout and markedly enlarged toward the sides, unlike those usually observed in Eutrichodesmus, which are slender. [6]

Species

This genus includes the following species:

References

  1. ↑ Sergei Golovatch; Jean-Jacques Geoffroy; Jean-Paul Mauriès; Didier VandenSpiegel (7 April 2009). "Review of the millipede family Haplodesmidae Cook, 1895, with descriptions of some new or poorly-known species (Diplopoda, Polydesmida)". ZooKeys . 7 (7): 1–53. doi: 10.3897/ZOOKEYS.7.117 . ISSN   1313-2989. Wikidata   Q21090285.
  2. ↑ "MilliBase - Eutrichodesmus Silvestri, 1910". www.millibase.org. Retrieved 2025-02-28.
  3. 1 2 3 4 Srisonchai, Ruttapon; Likhitrakarn, Natdanai; Sutcharit, Chirasak; Jeratthitikul, Ekgachai; Siriwut, Warut; Thrach, Phanara; Chhuoy, Samol; Ngor, Peng Bun; Panha, Somsak (2020-11-24). "A new micropolydesmoid millipede of the genus Eutrichodesmus Silvestri, 1910 from Cambodia, with a key to species in mainland Southeast Asia (Diplopoda, Polydesmida, Haplodesmidae)". ZooKeys (996): 59–91 [60, 63]. Bibcode:2020ZooK..996...59S. doi: 10.3897/zookeys.996.57411 . ISSN   1313-2970. PMC   7710679 . PMID   33312046.
  4. ↑ "Eutrichodesmus Silvestri, 1910 | COL". www.catalogueoflife.org. Retrieved 2025-02-28.
  5. ↑ 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.
  6. 1 2 Golovatch, Sergei; Geoffroy, Jean-Jacques; Mauriès, Jean-Paul; VandenSpiegel, Didier (2009-04-07). "Review of the millipede family Haplodesmidae Cook, 1895, with descriptions of some new or poorly-known species (Diplopoda, Polydesmida)". ZooKeys (7): 1–53 [41–42, 45–47]. Bibcode:2009ZooK....7....1G. doi: 10.3897/zookeys.7.117 . ISSN   1313-2970.

Further reading

This page is based on this Wikipedia article
Text is available under the CC BY-SA 4.0 license; additional terms may apply.
Images, videos and audio are available under their respective licenses.