A taxonomic study of millipede genera, Orangutana Golovatch, 1996 and Gigantomorpha Jeekel, 1963 (Diplopoda, Polydesmida, Paradoxosomatidae), with description of four new species from Sabah, Borneo, East Malaysia

  • Ting Hui Ng Institute for Tropical Biology and Conservation, Universiti Malaysia Sabah, Jalan UMS, 88400 Kota Kinabalu, Sabah, Malaysia https://orcid.org/0000-0002-5123-0039
  • Ruttapon Srisonchai Department of Biology, Faculty of Science, Khon Kaen University, Khon Kaen 40002, Thailand https://orcid.org/0000-0002-7142-0999
  • Sergei I. Golovatch Institute of Ecology and Evolution, Russian Academy of Sciences, Leninsky pr. 33, Moscow 119071, Russia
  • Chirasak Sutcharit Animal Systematics Research Unit, Department of Biology, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand https://orcid.org/0000-0001-7670-9540
  • Somsak Panha Animal Systematics Research Unit, Department of Biology, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand
  • Martinah Latim Sabah Parks, Lot 1-3, Block K, G/Floor Sinsuran Complex, 88806 Kota Kinabalu, Malaysia
  • Natdanai Likhitrakarn Program of Agriculture, Faculty of Agricultural Production, Maejo University, Chiang Mai 50290, Thailand
DOI: https://doi.org/10.5852/ejt.2025.987.2871
Keywords: taxonomy, key, Myriapoda, Borneo

Abstract

This taxonomic study focuses on the millipede genera, Gigantomorpha Jeekel, 1963, and Orangutana Golovatch, 1996, both in the family Paradoxosomatidae. The present investigation focuses on specimens collected in Sabah, Malaysian Borneo, a region known for its remarkable biodiversity. Two new species are described from the Crocker Range Park: Gigantomorpha alabensis Ng & Likhitrakarn sp. nov., and Orangutana koropungoi Ng & Likhitrakarn sp. nov. Another two new species come from the Kinabalu Park: Gigantomorpha sayapensis Ng & Likhitrakarn sp. nov. and Gigantomorpha mesilauensis Ng & Likhitrakarn sp. nov. Their descriptions highlight the neglected, yet vibrant millipede diversity in Sabah. The statuses of both Gigantomorpha and Orangutana are mentioned, their distribution map is presented, and an identification key to all species of Gigantomorpha is given.

References

American Veterinary Medical Association 2020. AVMA Guidelines for the Euthanasia of Animals: 2020 Edition. Available from https://www.avma.org/resources-tools/avma-policies/avma-guidelines-euthanasia-animals [accessed 27 Dec. 2023].

Attems C. 1898. System der Polydesmiden. I. Theil. Denkschriften der Kaiserlichen Akademie der Wissenschaften zu Wien, Mathematisch-Naturwissenschaftliche Classe 67: 221–482. Available from https://www.biodiversitylibrary.org/page/27925127 [accessed 27 Dec. 2023].

Attems C. 1914. Die indo-australischen Myriopoden. Archiv für Naturgeschichte 80A: 1–398. Available from https://www.biodiversitylibrary.org/page/13260451 [accessed 27 Dec. 2023].

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

Breitfeld H.T., Hall R., Suggate S.M., Hattum M.W.A. van, Hennig-Breitfeld J., BouDagher-Fadel M.K., Webb M. & Franzel M. 2023. Neogene sedimentary successions in northern and central Sabah: Provenance and tectonic implications. Stratigraphy & Timescales 8: 71–119. https://doi.org/10.1016/bs.sats.2023.08.009

Carl J. 1912. Die Diplopoden-Fauna von Celebes. Revue suisse de Zoologie 20 (4): 73–206. https://doi.org/10.5962/bhl.part.19248

Golovatch S.I. 1996. The millipede family Paradoxosomatidae on Borneo, with contributions to the faunas of some other islands of the Sunda area (Diplopoda, Polydesmida). Revue suisse de Zoologie 103 (1): 151–193. https://doi.org/10.5962/bhl.part.79943

Golovatch S.I. & Enghoff H. 2015. Superorder Merochaeta Cook, 1895. In: Minelli A. (ed.) The Myriapoda (Vol. 2). Treatise on Zoology: 391–407. Brill. https://doi.org/10.1163/9789004188273

Ito M., Hasegawa M., Iwamoto K. & Kitayama K. 2002. Patterns of soil macrofauna in relation to elevation and geology on the slope of Mount Kinabalu, Sabah, Malaysia. Sabah Parks Nature Journal 5: 153–163.

Jeekel C.A.W. 1963 Paradoxosomatidae from Borneo (Diplopoda, Polydesmida). Tijdschrift voor Entomologie 106 (6): 205–283. Available from https://www.biodiversitylibrary.org/page/28272154 [accessed 27 Dec. 2023].

Jeekel C.A.W. 1968. On the Classification and Geographical Distribution of the Family Paradoxosoma-tidae (Diplopoda, Polydesmida). Academisch Proefschrift, Rotterdam.

Jeekel C.A.W. 1979. A revision of the Sumatran Paradoxosomatidae (Diplopoda, Polydesmida) in the Museo Civico di Storia Naturale at Genoa. Bijdragen tot de Dierkunde 49 (2): 163–193. https://doi.org/10.1163/26660644-04902001

Jeekel C.A.W. 1982. New records and descriptions of southeast Asian Paradoxosomatidae (Diplopoda, Polydesmida). Bollettino del Museo Civico di Storia Naturale di Verona 9: 225–253.

Liew T.S., Schilthuizen M. & Lakim M. 2010. The determinants of land snail diversity along a tropical elevational gradient: Insularity, geometry and niches. Journal of Biogeography 37: 1071–1078. https://doi.org/10.1111/j.1365-2699.2009.02243.x

Likhitrakarn N., Golovatch S.I., Prateepasen R. & Sittichaya W. 2022. Review of the millipede genus Malayorthomorpha Mršić, 1996 (Diplopoda, Polydesmida, Paradoxosomatidae), with descriptions of two new species from Thailand and a key to its species. ZooKeys 1118: 1–19. https://doi.org/10.3897/zookeys.1118.89593

Majuakim L. & Anthony F. 2016. Diversity and ecology of ferns on Mount Alab, Crocker Range Park, Sabah, Malaysia. Malayan Nature Journal 68 (1&2): 167–176.

Mohamed M., Hamzah Z., Tachi T. & Nais J. (eds) 2004. Crocker Range Scientific Expedition 2002. Universiti Malaysia Sabah, Kota Kinabalu.

Moritz M. & Fischer S.-C. 1978. Die Typen der Myriapoden-Sammlung des Zoologischen Museums Berlin. I. Diplopoda. Teil 4: Polydesmida. Teil 5: Ergänzungen. Mitteilungen aus dem Zoologischen Museum in Berlin 54 (1): 99–160. https://doi.org/10.1002/mmnz.19780540106

Nguyen A.D. & 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

Sabah Parks 2023a. Crocker Range Biosphere Reserve. Available from https://crbr.sabahparks.org.my/ [accessed 27 Dec. 2023].

Sabah Parks 2023b. Kinabalu Park. Available from https://www.sabahparks.org.my/kinabalu-park [accessed 27 Dec. 2023].

Sabah Wildlife Department 2021. Sepilok Orangutan Rehabilitation Centre. Available from https://wildlife.sabah.gov.my/index.php/20-protected-areas/50-sepilok-orangutan-rehabilitation-centre [accessed 27 Dec. 2023].

Shelley R.M., Sierwald P., Kiser S.B. & Golovatch S.I. 2000. Nomenclator generum et familiarum Diplopodorum II. A List of the Genus and Family-group Names in the Class Diplopoda from 1958 through 1999. Pensoft Publishers, Sofia.

Wang Y.M. 1967. Serica 1u: Records on millipedes and centipedes from Brunei and from the Philippines. Quarterly Journal of the Taiwan Museum 20 (3/4): 391–392.

Weidner H. 1960. Die entomologischen Sammlungen des Zoologischen Staatsinstituts und Zoologischen Museums Hamburg. III. Teil. Chilopoda und Progoneata. Mitteilungen aus dem Hamburgischen zoologischen Museum und Institut 58: 57–104.

Published
2025-04-15
How to Cite
Ng, T. H., Srisonchai, R., Golovatch, S. I., Sutcharit, C., Panha, S., Latim, M., & Likhitrakarn, N. (2025). A taxonomic study of millipede genera, Orangutana Golovatch, 1996 and Gigantomorpha Jeekel, 1963 (Diplopoda, Polydesmida, Paradoxosomatidae), with description of four new species from Sabah, Borneo, East Malaysia. European Journal of Taxonomy, 987(1), 221–248. https://doi.org/10.5852/ejt.2025.987.2871
Issue
Vol. 987 (2025)
Section
Research article

Copyright (c) 2025 Ting Hui Ng, Ruttapon Srisonchai, Sergei I. Golovatch, Chirasak Sutcharit, Somsak Panha, Martinah Latim, Natdanai Likhitrakarn

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