Skip to main content Skip to main navigation menu Skip to site footer
Responsive image
Issue: Vol. 5405 No. 2: 30 Jan. 2024
Type: Article
Published: 2024-01-30
DOI: 10.11646/zootaxa.5405.2.7
Page range: 273-280
Abstract views: 129
PDF downloaded: 9

Three new earthworms of the Amynthas corticis-group (Clitellata: Megascolecidae) from the Nam Et-Phouleoi, Laos

Department of Agricultural Biology; College of Agriculture & Life Sciences; Jeonbuk National University; Jeonju 54896; Korea
Center of Excellence in Biodiversity; Research Academic and Service Office; National University of Laos
Department of Biology; University of Iowa; Iowa City; Iowa; USA 52242
Annelida Earthworms Amynthas Megascolecidae Laos Taxonomy

Abstract

Three new earthworms of the Amynthas corticis-group (Clitellata: Megascolecidae) from Phouleoi Mountain, Lao PDR. Earthworm specimens were collected from Mt. Phouleoi, Viengthong District, Houaphanh Province, Lao PDR. The species belong to the pheretimoid earthworms. All three holandric species key out to the A. corticis-group in Sims & Easton (1972), having spermathecal pores in 5/6–8/9. The new species are: Amynthas ammalinei sp. nov., Amynthas xayi sp. nov., and Amynthas piyakarnae sp. nov. Amynthas ammalinei sp. nov. has male pores superficial on small round porophores, 0.16–0.31 circumference apart. Amynthas xayi sp. nov. has male pores superficial in XVIII at centers of round porophores, 0.17–0.29 circumference apart. Amynthas piyakarnae sp. nov. has male pores superficial on transverse elevated elongate oval pads equatorial on XVIII, pads surrounded by 3–4 small outer rings, 0.25–0.31 circumference apart.

 

References

  1. Gates, G.E. (1931) The earthworms of Burma II. Records of the Indian Museum, Calcutta, 33, 327–442. https://doi.org/10.26515/rzsi/v33/i4/1931/162483
  2. Gates, G.E. (1932) The earthworms of Burma III, the Megascolecidae. Records of the Indian Museum, Calcutta, 34, 357−549. https://doi.org/10.26515/rzsi/v34/i4/1932/162577
  3. Gates, G.E. (1972) Burmese earthworms, an introduction to the systematics and biology of megadrile oligochaetes with special reference to Southeast Asia. Transaction of the American Philosophical Society, New Series, 62, 1–326. https://doi.org/10.2307/1006214
  4. Hong, Y. (2010) Four new earthworms of the Amynthas aeruginosus species group (Oligochaeta: Megascolecidae) from Nam Xam NBCA, Laos. Revue Suisse de Zoologie, 117, 599−609. https://doi.org/10.5962/bhl.part.117599
  5. Hong, Y. (2019) New earthworm species of Amynthas (Clitellata: Megascolecidae) from Nam Phouin National Protected Area, Laos. Journal of Asia-Pacific Biodiversity, 12, 353−356. https://doi.org/10.1016/j.japb.2019.04.001
  6. Hong, Y., James, S.W. & Inkhavilay, K. (2008) A new species of the genus Pithemera (Oligochaeta: Megascolecidae) from Namat NBCA, Laos. The Korean Journal of Systematic Zoology, 24, 161−164. https://doi.org/10.5635/KJSZ.2008.24.2.161
  7. Hong, Y., James, S.W. & Inkhavilay, K. (2014a) Three new earthworms of the genus Amynthas (Clitellata: Megscolecidae) from Nam Ha NPA, Laos. Animal Systematics Evolution and Diversity, 30 (2), 81−86. https://doi.org/10.5635/ASED.2014.30.2.081
  8. Hong, Y., James, S.W. & Inkhavilay, K. (2014b) A new earthworms in Amynthas hexathecus group (Clitellata: Megscolecidae) from Nam Xam National Protected Area, Laos. The Journal of Natural History, 48 (5–8), 251−256. https://doi.org/10.1080/00222933.2013.809491
  9. Hong, Y., Inkhavilay, K. & James, S.W. (2018) Nine new species of the “aeruginosus” - group in Amynthas (Clitellata: Megascolecidae) from Nam Et-Phouley National protected Area, Laos. Zootaxa, 4496 (1), 238−250. https://doi.org/10.11646/zootaxa.4496.1.19
  10. Rasphone, A., Kéry, M., Kamler, J.F. & Macdonald, D.W. (2019) “Documenting the demise of tiger and leopard, and the status of other carnivores and prey, in Lao PDR’s most prized protected area: Nam Et-Phou Louey”. Global Ecology and Conservation, 20, e00766. https://doi.org/10.1016/j.gecco.2019.e00766
  11. Sims, R.W. & Easton, E.G. (1972) A numerical revision of the earthworm genus Pheretima auct. (Megascolecidae: Oligochaeta) with the recognition of new genera and an appendix on the earthworms collected by the Royal Society North Borneo Expedition. The Biological Journal of the Linnean Society, London, 4, 169−268. https://doi.org/10.1111/j.1095-8312.1972.tb00694.x
  12. Thai, T.B. & Samphon, K. (1988) New species and subspecies of earthworms from Laos. Journal of Science of Hanoi University of Education, 1988, 3−25.
  13. Thai, T.B. & Samphon, K. (1989) Inital remarks on the fauna of earthworm in Laos (from Muong Phuon to Bualave plateaux). Journal of Science of Hanoi University of Education, 1989, 61−75.
  14. Thai, T.B. & Samphon, K. (1990a) The fauna of earthworms of Luongphabang Province (Laos). Journal of Science of Hanoi University of Education, 1990, 3−13.
  15. Thai, T.B. & Samphon, K. (1990b) New species of earthworms from Luongphabang, Laos. Tap Chi Sinh Hoc, 12, 11−14.
  16. Thai, T.B. & Samphon, K. (1991a) A list of discovered species of earthworms from Laos. Journal of Science of Hanoi University of Education, 1991, 86−89.
  17. Thai, T.B. & Samphon, K. (1991b) Earthworms of some regions skirting the middle part of Mekong River in Laos (from Vientiane to Pacse). Tap Chi Sinh Hoc, 13, 1−10.