Uncovering Endemism in High Montane Forests: Two New Species of Millipede Genus Tylopus Jeekel, 1968 (Diplopoda: Polydesmida: Paradoxosomatidae) from Cambodia and Laos
Keywords:
biodiversity, endemic species, Southeast Asia, SulciferiniAbstract
Two new species of the predominantly Indochinese to southern Chinese millipedes belonging to the genus Tylopus Jeekel, 1968 are described: Tylopus bokorensis sp. nov. from southern Cambodia, and T. panhai sp. nov. from southern Laos. These species can be clearly discriminated from congeners by the shape of processes on postfemoral part of the gonopod in combination with some distinct somatic characters. Tylopus bokorensis sp. nov. is the first in this genus to be found in Cambodia. Both species inhabit montane habitats more than 1,000 m above mean sea level, and we regard them as endemic to these countries. An identification key and distribution map of Tylopus occurring in Cambodia and Laos are provided.
References
American Veterinary Medical Association. 2020. AVMA Guide-lines for the Euthanasia of Animals: 2020 edition. https://www. avma.org/sites/default/files/2020-02/Guidelines-on-Euthanasia-2020.pdf
Attems, C. 1953. Myriopoden von Indochina. Expedition von Dr. C. Dawydoff (1938–1939). Mémoires du Muséum National d’Histoire Naturelle, N.S. 5A: 133–230.
Bogyó, D., Magura, T., Nagy, D.D. and Tóthmérész, B. 2015. Distribution of millipedes (Myriapoda, Diplopoda) along a forest interior - forest edge - grassland habitat complex. Zoo-Keys, 510: 181–95. https://doi.org/10.3897/zookeys.510.8657
Clements, R., Sodhi, N.S., Schilthuizen, M. and Ng, P.K.L. 2006. Limestone karsts of Southeast Asia: imperiled arks of biodiver-sity. BioScience, 56: 733–74.
Enghoff, H. 2004. A review of the millipede fauna of Vietnam (Diplopoda). Arthropoda Selecta, 13(1–2): 29–43.
Gray, T.N.E., Calame, T., Hayes, B., Hurley, M.J., Nielsen, P.H., Lamxay, V., Timmins, R.J. and Thongsamouth, K. 2013. Biodi-versity Surveys of Xe Sap National Protected Area, Lao PDR 2012. World Wildlife Fund Greater Mekong, Lao PDR. 204 pp.
Golovatch, S.I. and Enghoff, H. 1993. Review of the millipede genus Tylopus, with descriptions of new species from Thailand (Diplopoda, Polydesmida, Paradoxosomatidae). Steenstrupia, 19 (3): 85–125.
Golovatch, S.I. 2014. On several new or poorly-known Oriental Paradoxosomatidae (Diplopoda: Polydesmida), XV. Arthro-poda Selecta, 23(1): 1–19.
Golovatch, S.I. 2018. Further notes on the millipede family Crypto-desmidae in Southeast Asia, with descriptions of a new genus and two new species from Indochina (Diplopoda: Polydes-mida). Raffles Bulletin of Zoology, 66: 361–370.
ICEM. 2003. Lao PDR national report on protected areas and development. Review of protected areas and development in the lower Mekong river region. Indooroopilly, Queensland, Australia. 101 pp.
Jeekel, C.A.W. 1965. A revision of the Burmese Paradoxoso-matidae (Diplopoda, Polydesmida) in the Museo Civico di Storia Naturale at Genoa (Part I). Tijdschrift voor Entomologie, 108: 95–144.
Jeekel, C.A.W. 1968. On the classification and geographical distri-bution of the family Paradoxosomatidae (Diplopoda, Polydes-mida). Academisch Proefschrift, Rotterdam, Netherlands. 162 pp.
Korsόs, Z. and Golovatch, S.I. 1989. Addenda to the millipede fauna of Vietnam (Diplopoda). Acta Zoologica Hungarica, 35: 211–220.
McCain, C.M. and Grytnes, J.A. 2010. Elevational gradients in species richness. In: Encyclopedia of Life Sciences (ELS). Chichester: John Wiley & Sons, Ltd. https://doi.org/10.1002/ 9780470015902.a0022548
Means, J., Francis, E., Lane, A. and Marek, P. 2015. A general methodology for collecting and preserving xystodesmid and other large millipedes for biodiversity research. Biodiversity Data Journal, 3: e5665. https://doi.org/10.3897/BDJ.3.e5665
Moirm, M.L., Brennan, K.E.C. and Harvey, M.S. 2009. Diversity, endemism and species turnover of millipedes within the south-western Australian global biodiversity hotspot. Journal of Biogeography, 36: 1958–1971. https://doi.org/10.1111/j.1365-2699.2009.02137.x
Likhitrakarn, N., Golovatch, S.I., Prateepasen, R. and Panha, S. 2010. Review of the genus Tylopus Jeekel, 1968, with descript-tions of five new species from Thailand (Diplopoda, Polydes-mida, Paradoxosomatidae). ZooKeys, 72: 23–68. http://dx.doi. org/10.3897/zookeys.72.744
Likhitrakarn, N., Golovatch, S.I. and Panha, S. 2011. Revision of the Southeast Asian millipede genus Orthomorpha Bollman, 1893, with the proposal of a new genus (Diplopoda, Polydes-mida, Paradoxosomatidae). ZooKeys, 131: 1–161. https://doi. org/10.3897/zookeys.131.1921
Likhitrakarn, N., Golovatch, S.I. and Panha, S. 2014a. Three new species of the millipede genus Tylopus Jeekel, 1968 from Thailand, with additional notes on the species described by Attems (Diplopoda, Polydesmida, Paradoxosomatidae). Zoo-Keys, 435: 63–91. http://dx.doi.org/10.3897/zookeys.435.8286
Likhitrakarn, N., Golovatch, S.I. and Panha, S. 2014b. A checklist of the millipedes (Diplopoda) of Laos. Zootaxa, 3754(4): 473–482. http://dx.doi.org/10.11646/zootaxa.3754.4.8
Likhitrakarn, N., Golovatch, S.I. and Panha, S. 2015a. A checklist of the millipedes (Diplopoda) of Cambodia. Zootaxa, 3973(1): 175–184. http://dx.doi.org/10.11646/zootaxa.3973.1.7
Likhitrakarn, N., Golovatch, S.I. and Panha, S. 2015b. Two new species of dragon millipedes, genus Desmoxytes Chamberlin, 1923, from Laos (Diplopoda: Polydesmida: Paradoxosoma-tidae), with redescriptions of all four species of Attems from Vietnam. Zootaxa, 3931 (4): 483–504. http://dx.doi.org/10.11 646/zootaxa.3931.4.2
Likhitrakarn, N., Golovatch, S.I. and Panha, S. 2016. The millipede genus Tylopus Jeekel, 1968 (Diplopoda, Polydesmida, Paradox-osomatidae), with a key and descriptions of eight new species from Indochina. European Journal of Taxonomy, 195: 1–47. http://dx.doi.org/10.5852/ejt.2016.195
Likhitrakarn, N., Golovatch, S.I., Srisonchai, R. and Panha, S. 2021. Two new species of the millipede genus Tylopus Jeekel, 1968 from Shan State, Myanmar (Diplopoda, Polydesmida, Paradoxosomatidae). ZooKeys, 1040: 167–185. https://doi.org/ 10.3897/zookeys.1040.66209
Liu, W.X. and Luo, X.Z. 2013. A new species of the millipede genus Tylopus from southern China (Diplopoda: Polydesmida, Paradoxosomatidae). Acta Zootaxonomica Sinica, 38(1): 50–52.
Liu, W., Golovatch, S. and Wesener, T. 2017. Four new species of the millipede genus Eutrichodesmus Silvestri, 1910 from Laos, including two with reduced ozopores (Diplopoda, Polydesmida, Haplodesmidae). ZooKeys, 660: 43–65. https://doi.org/10.3897 /zookeys. 660.11780
Nguyen, A.D. and Eguchi, K. 2022. Mountainous millipedes in Vietnam. II. A conspicuous Tylopus species from Northern Vietnam (Diplopoda, Polydesmida, Paradoxosomatidae). Zoo-Keys, 1091: 1–13. https://doi.org/10.3897/zookeys.1091. 8009
Sierwald, P. and Spelda, J. 2022. MilliBase. Available from: https://www.millibase.org (17 March 2022).
Srisonchai, R., Enghoff, H., Likhitrakarn, N. and Panha, S. 2018. 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
Willett, W., Jenny, B., Isenberg, T. and Dragicevic, P. 2015. Light-weight relief shearing for enhanced terrain perception on interactive maps. In: Proceedings of the 33rd ACM Conference on Human Factors in Computing Systems (CHI 2015), Seoul, South Korea, pp. 3563–3572. http://elasticterrain.xyz/map/ (3 March 2022)
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