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Issue: Vol. 1914 No. 1: 24 Oct. 2008
Type: Article
Published: 2008-10-24
DOI: 10.11646/zootaxa.1914.1.4
Page range: 57–61
Abstract views: 37
PDF downloaded: 1

Two new bithecal earthworms of the genus Amynthas (Oligochaeta: Megascolecidae) from Laos

Faculty of Biological Resources Science, College of Agriculture & Life Science, Chonbuk National University, Jeonju 561-756, Republic of Korea
Annelida Earthworms Oligochaeta Megascolecidae Amynthas new species Nam Phouin NBCA Laos

Abstract

Earthworm specimens collected from Nam Phouin NBCA, Laos were found to be two new species of megascolecid earthworms: Amynthas namphouinensis sp. nov. and Amynthas chandyi sp. nov. They belong to the zebrus species group with a pair of spermathecal pores in 7/8. A. namphouinensis has male pores on small round porophores in XVIII, genital papillae always paired equatorial in XVII, presetal, widely paired in XIX, and mid-ventral in 17/18. A. chandyi has male pores on circular porophores in XVIII, and genital papillae paired in 18/19 posterior to the porophores, postsetal in XVIXIX, and presetal in XVIII, XX.

References

  1. Benham, W.B. (1896) Some earthworms from Celebes. The Annals and Magazine of Natural History, Zoology, Botany and Geology, London, 18, 429–448.

    Chen, Y. (1946) On the terrestrial Oligochaeta from Szechwan III. Journal of the West China Border Research Society, 16, 83–141.

    James, S.W. (2004) New species of Amynthas, Pheretima and Pleionogaster (Oligochaeta: Megascolecidae) of the Mt. Kitanglad Range, Mindanao, Philippines. Raffles Bulletin of Zoology, 52(2), 289–313.

    Michaelsen, W. (1892) Terricolen der Berliner Zoologischen Sammlung, II. Archiv für Naturgeschichte, Berlin, 58, 209–261.

    Michaelsen, W. (1899) Terricolen von verschiedenen Gebieten der Erde. Jahrbuch der Hamburgischen Wissenschaftlichen Anstalten, Hamburg, 16(2), 1–122.

    Michaelsen, W. (1932) Neue Oligochäten von Bali und Borneo. Bulletin du Museum d’Histoire Naturelle de Belgique, Bruxelles, 8(32), 1–11.

    Qiu, J.P. & Wang, H. (1992) Two new species of the genus Amynthas from Guizhou. Acta Zootaxonomica Sinica, 17(3), 262–267.

    Qiu, J.P., Wang, H. & Wang, W. (1993) Notes on two new species of the genus Amynthas from Guizhou Province (Haplotaxida, Megascolecidae). Acta Zootaxonomica Sinica, 18(4), 406–411.

    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.

    Thai, T.B. & Samphon, K. (1988) New species and subspecies of earthworms from Laos. Scientific Information of Hanoi University of Education, 3–25. (Vietnamese).

    Thai, T.B. & Samphon, K. (1989) Inital remarks on the fauna of earthworm in Laos (from Muong Phuon to Bualave plateaux). Scientifici Information of Hanoi University of Education, 61–74. (Vietnamese).

    Thai, T.B. & Samphon, K. (1990a) The fauna of earthworms of Luongphabang Province (Laos). Scientific Information of Hanoi University of Education, 3–13. (Vietnamese).

    Thai, T.B. & Samphon, K. (1990b) New species of earthworms from Luongphabang, Laos. Journal of Biology, National Centre for Natural Science and Technology of Vietnam, 12, 11–14. (Vietnamese).

    Thai, T.B. & Samphon K. (1991a) A list of discovered species of earthworms fron Laos. Scientific Information of Hanoi University of Education, 86–89. (Vietnamese).

    Thai, T.B. & Samphon, K. (1991b) Earthworms of some regions skirting the middle part of Mekong River in Laos (from Vienian to Pacse). Journal of Biology, National Centre for Natural Science and Technology of Vietnam, 13, 1–10. (Vietnamese).