A revision of dragon millipedes III: the new genus Gigaxytes gen. nov., with the description of three new species (Diplopoda, Polydesmida, Paradoxosomatidae)

Ruttapon Srisonchai, Henrik Enghoff, Natdanai Likhitrakarn, Somsak Panha


The ‘gigas’ group of dragon millipedes, formerly placed in the genus Desmoxytes Chamberlin, 1923, is revised and assigned to the new genus Gigaxytes gen. nov. Desmoxytes gigas Golovatch & Enghoff, 1994 is the type species of the new genus and is redescribed as G. gigas (Golovatch & Enghoff, 1994) gen. et comb nov. Three new species are described: G. fusca gen et sp. nov. from Thailand and Myanmar; G. parvoterga gen et sp. nov. and G. suratensis gen et sp. nov. from Thailand. All Gigaxytes species are endemic to small distribution areas in limestone habitats in South Thailand and South Myanmar. Illustrations of external morphological characters and an identification key to all known species are provided as well as a distribution map.


Dragon millipede; endemic; new species; taxonomy; Thailand

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DOI: https://doi.org/10.5852/ejt.2018.463


Attems C. 1936. Diplopoda of India. Memoirs of the Indian Museum 11 (4): 133–323.

Attems C. 1937. Myriapoda 3. Polydemoidea I, Fam. Strongylosomidae. Das Tierreich 68: 1–300.

Attems C.1938.Die von Dr. C. Dawydoff in Französisch Indochina gesammelten Myriopoden. Mémoires du Muséum National D’Histoire Naturelle, Paris 6 (2): 187-353.

Attems C. 1953. Myriapoden von Indochina. Expedition von Dr. C. Dawydoff (1938–1939). Mémoires du Muséum National D’Histoire Naturelle, Paris 5 (3): 133–230.

Baker G. 1985. Parasites of the millipede Ommatoiulus moreletii (Lucas) (Diplopoda: Iulidae) in Portugal, and their potential as biological control agents in Australia. Australian Journal of Zoology 33 (1): 23–32. https://doi.org/10.1071/ZO9850023

Chamberlin R.V. 1923. Two diplopod immigrants taken at Honolulu. Proceedings of the Biological Society of Washington 36: 165–168. https://biodiversitylibrary.org/page/34510694

Chamberlin R.V. 1941. New polydesmoid diplopods intercepted at quarantine. Proceedings of the Entomological Society of Washington 43 (2): 32–35. https://biodiversitylibrary.org/page/16130128

Cook O.F. & Loomis H.F. 1924. A new family of spined millipeds from central China. Journal of the Washington Academy of Sciences 14 (5): 103–108. https://biodiversitylibrary.org/page/39702295

Enghoff H (2005) The millipedes of Thailand (Diplopoda). Steenstrupia 29 (1): 87–103. http://www.zmuc.dk/commonweb/JOURNALS/PDF/Vol29-1/Enghoff.pdf

Enghoff H., Sutcharit C. & Panha S. 2007. The shocking pink dragon millipede, Desmoxytes purpurosea, a colourful new species from Thailand (Diplopoda: Polydesmida: Paradoxosomatidae). Zootaxa 1563: 31–36. https://biotaxa.org/Zootaxa/article/view/zootaxa.1563.1.3

Farfan M.A. & Klompen H. 2012. Phoretic mite associates of millipedes (Diplopoda, Julidae) in the northern Atlantic region (North America, Europe). International Journal of Myriapodology 7: 69–91. https://doi.org/10.3897/ijm.7.3064

Golovatch S.I. & Enghoff H. 1994. Review of the dragon millipedes, genus Desmoxytes Chamberlin, 1923 (Diplopoda, Polydesmida, Paradoxosomatidae). Steenstrupia 20 (2): 45–71.

Golovatch S.I., Geoffroy J.J. & Mauriès J.P. 2010. Two new species of the millipede genus Desmoxytes Chamberlin, 1923 (Diplopoda: Polydesmida: Paradoxosomatidae) from caves in southern China. Arthropoda Selecta 19 (2): 57–61. http://kmkjournals.com/upload/PDF/ArthropodaSelecta/19/19_2_057_061_Golov_et_al_for_Inet.pdf

Golovatch S.I., Li Y., Liu W. & Geoffroy J.J. 2012. Three new cavernicolous species of dragon millipedes, genus Desmoxytes Chamberlin, 1923, from southern China, with notes on a formal congener from the Philippines (Diplopoda, Polydesmida, Paradoxosomatidae). ZooKeys 185: 1–17. https://doi.org/10.3897/zookeys.185.3082

Golovatch S.I., Vandenspiegel D. & Semenyuk I.I. 2016. On several new or poorly-known Oriental Paradoxosomatidae (Diplopoda: Polydesmida), XXI. Arthropoda Selecta 25 (4): 335–354. http://kmkjournals.com/upload/PDF/ArthropodaSelecta/25/25_4_335_354_Golovatch_et_al_for_Inet.pdf

Jeekel C.A.W. 1964. Two new species of Pratinus Attems, with taxonomic notes on the genus and a redescription of its type-species (Diplopoda, Polydesmida). Beaufortia 11 (137): 61–73. http://www.repository.naturalis.nl/document/548475

Jeekel C.A.W. 1980. The generic allocation of some little-known Paradoxosomatidae from South-East Asia (Diplopoda, Polydesmida). Revue suisse de Zoologie 87 (3): 651–670. https://biodiversitylibrary.org/page/41420961

Jeekel C.A.W. 2003. African Paradoxosomatidae, 1: Genus Eviulisoma Silvestri (Diplopoda, Polydesmida). Myriapod Memoranda 6: 46–88.

Likhitrakarn N., Golovatch S.I. & Panha S. 2015. Two new species of dragon millipedes, genus Desmoxytes Chamberlin, 1923, from Laos (Diplopoda: Polydesmida: Paradoxosomatidae), with redescriptions of all four species of Attems from Vietnam. Zootaxa 3931 (4): 483–504. http://doi.org/10.11646/zootaxa.3931.4.2

Liu W., Golovatch S.I & Tian M. 2014. A review of the dragon millipede genus Desmoxytes Chamberlin, 1923 in China, with descriptions of four new species (Diplopoda, Polydesmida, Paradoxosomatidae). ZooKeys 448: 9–26. https://doi.org/10.3897/zookeys.448.8081

Liu W., Golovatch S.I. & Tian M. 2016. Six new species of dragon millipedes, genus Desmoxytes Chamberlin, 1923, mostly from caves in China (Diplopoda, Polydesmida, Paradoxosomatidae). ZooKeys 577: 1–24. https://doi.org/10.3897/zookeys.577.7825

Liu W., Golovatch S.I., Wesener T. & Tian M. 2017. Convergent evolution of unique morphological adaptations to a subterranean environment in cave millipedes (Diplopoda). PLOS ONE 12 (2): e0170717. https://doi.org/10.1371/journal.pone.0170717

Loksa I. 1960. Einige neue Diplopoden-und Chilopodenarten aus chinesischen Höhlen. Acta Zoologica Academiae Scientiarum Hungaricae 6: 135–148.

Nguyen D.A., Golovatch S.I. & Anichkin A.E. 2005. The dragon millipedes in Vietnam (Polydesmida: Paradoxosomatidae, genus Desmoxytes Chamberlin, 1923). Arthropoda Selecta 14 (3): 251–257. http://kmkjournals.com/upload/PDF/ArthropodaSelecta/14/14_3%20251_257%20Nguyen.pdf

Nguyen D.A. & Sierwald P. 2013. A worldwide catalog of the family Paradoxosomatidae Daday, 1889 (Diplopoda: Polydesmida). Check List 9 (6): 1132–1353. https://doi.org/10.15560/9.6.1132

OConnor B.M. 2009. Cohort Astigmata. In: Krantz GW, Walter DE (eds) A Manual of Acarology: 565–658. Texas Tech University Press, Texas.

Pocock R.I. 1895. The Myriopoda of Burma, Pt. IV. Report upon the Polydesmoidea collected by Sig. L. Fea, Mr. E. W. Oates and others, by R. I. Pocock of the British Museum of Natural History. Annali del Museo civico di Storia Naturale Giacomo Doria 14: 787–834. https://archive.org/details/cbarchive_104716_themyriapodaofburma1870

Srisonchai R., Enghoff H., Likhitrakarn N. & Panha S. 2016. Four colorful new species of dragon millipedes, genus Desmoxytes Chamberlin, 1923, from northern Thailand (Diplopoda: Polydesmida: Paradoxosomatidae). Zootaxa 4710 (1): 93–113. http://dx.doi.org/10.11646/zootaxa.4170.1.4

Srisonchai R., Enghoff H., Likhitrakarn N. & Panha S. 2018a. A revision of dragon millipedes I: genus Desmoxytes Chamberlin, 1923, with the description of eight new species (Diplopoda, Polydesmida, Paradoxosomatidae). ZooKeys 761: 1–177. https://doi.org/10.3897/zookeys.761.24214

Srisonchai R., Enghoff H., Likhitrakarn N. & Panha S. 2018b. A revision of dragon millipedes II: the new genus Nagaxytes gen. nov., with the description of three new species (Diplopoda, Polydesmida, Paradoxosomatidae). European Journal of Taxonomy 462: 1–44. https://doi.org/10.5852/ejt.2018.462

Zhang C.Z. 1986. On the genus Pratinus and its two new species from China (Diplopoda: Paradoxosomatidae). Acta Zootaxonomica Sinica 11: 253–257.

Zhang C.Z. & Li Z.Y. 1982. Centrodesmus cornutus sp. nov., eine neue Diplopoden-Art aus dem Sűd-China (Paradoxosomatidae: Polydesmida). Acta Zootaxonomica Sinica 7 (1): 37–39.


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