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A New Species of the Genus Pithemera (Oligochaeta: Megascolecidae) from Namat NBCA, Laos

  • Hong, Yong (Faculty of Biological Resources Science, Chonbuk National University) ;
  • James, Samuel W. (Natural History Museum and Biodiversity Research Center, University of Kansas) ;
  • Inkhavilay, Khamla (Department, Faculty of Science, National University of Laos)
  • Published : 2008.07.31

Abstract

As a result of a taxonomic study on the earthworm material collected from Namat National Biodiversity Conservation Area (NBCA), Hoaphane Province, Laos, a new species, Pithemera viengthongensis sp. novo is described from near Namchong river, Viengthong district. The new species bearing two pairs of spermathecal pores in 7/8, 8/9 is not assignable to any other species of Pithemera as defined by Sims and Easton (1972). In the new species, the male pore region has kidney-shaped pads extending between XVII-19/20, the male pores and spermathecal pores are 0.31 circumference apart, and genital papillae are lacking. The ventral view of anterior body region and the spermathecae are illustrated.

References

  1. Beddard, F.E., 1895. A monograph of the order of Oligochaeta. Oxford, pp. 1-769
  2. James, S.W., Y. Hong and T.H. Kim, 2004. New earthworms of Pheretima and Pithemera (Oligochaeta: Megascolecidae) from Mt. Arayat, Luzon Island, Philippines. Rev. Suisse Zool., 111(1): 3-10 https://doi.org/10.5962/bhl.part.80221
  3. Kobayashi, S., 1938. Earthworms of Korea. I. Sci. Rep. Tohoku Imp. Univ. Biol., 3: 89-170
  4. Perrier, E., 1875. Sur les vers de terre des îles Philippines et de la Cochinchine. C. r. Hebd. Seanc. Acad. Sci. Paris, 81: 1043-1046
  5. Ohfuchi, S., 1957. On a collection of the terrestrial Oligochaeta obtained from the various localities in Riu-kiu Islands, together with the consideration of their geographical distribution (Part II). J. Agri. Sci. Tokyo, 3: 243-261
  6. Shen, H.P. and C.F. Tsai, 2002. A new earthworm of the genus Pithemera (Oligochaeta: Megascolecidae) from the Lanyu Island (Botel Tobago). J. Natl. Taiwan Mus., 55(2): 1-7
  7. Sims, R.W. and E.G. Easton, 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. Biol. J. Linn. Soc., 4: 169-268 https://doi.org/10.1111/j.1095-8312.1972.tb00694.x
  8. Thai, T.B. and K. Samphon, 1988. New species and subspecies of earthworms from Laos. Sci. Inf. Hanoi Nat. Ped. Inst., 1988C: 3-25. (in Vietnamese)
  9. Thai, T.B. and K. Samphon, 1989. Initial remarks on the fauna of earthworm in Laos (from Muongphuon to Bualaven plateaux). Sci. Inf. Hanoi Nat. Ped. Inst., 1989: 61-75. (in Vietnamese)
  10. Thai, T.B. and K. Samphon, 1990b. New species of earthworms from Luongphabang, Laos. J. Biol., 12(1): 11-14. (in Vietnamese)
  11. Thai, T.B. and K. Samphon, 1991b. Earthworms of some regions skirting the middle part of Mekong River in Laos (from Vienian to Pacse). J. Biol., 13(4): 1-10. (in Vietnamese)
  12. Thai, T.B. and K. Samphon, 1991a. A list of discovered species of earthworms fron Laos. Sci. Inf. Hanoi Nat. Ped. Inst., 1991(5): 86-89. (in Vietnamese)
  13. Michaelsen, W., 1910. Die oligochäten fauna der Vorderindisch- Ceylonischen region. Abh. Geb. Naturw. Hamburg, 19: 1-108
  14. Gates, G.E., 1972. Burmese earthworms, an introduction to the systematics and biology of Megadrile oligochaetes with special reference to southeast Asia. Trans. Amer. Phil. Soc., 62(7): 1-326
  15. Thai, T.B. and K. Samphon, 1990a. The fauna of earthworms of Luongphabang Province (Laos). Sci. Inf. Hanoi Nat. Ped. Inst., 1990(1): 3-13. (in Vietnamese)

Cited by

  1. Three New Earthworms of the Genus Amynthas (Clitellata: Megascolecidae) from Nam Ha NPA, Laos vol.30, pp.2, 2014, https://doi.org/10.5635/ASED.2014.30.2.081