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Issue: Vol. 5410 No. 1: 12 Feb. 2024
Type: Article
Published: 2024-02-12
DOI: 10.11646/zootaxa.5410.1.2
Page range: 49-66
Abstract views: 14
PDF downloaded: 0

Three new species of the genus Amynthas (Oligochaeta: Megascolecidae) from Guangxi Zhuang Autonomous Region, China

School of Agriculture and Biology; Shanghai Jiao Tong University; Shanghai; China. Shanghai Urban Forest Research Station; State Forestry Administration; Shanghai; China
School of Agriculture and Biology; Shanghai Jiao Tong University; Shanghai; China. Shanghai Urban Forest Research Station; State Forestry Administration; Shanghai; China
School of Agriculture and Biology; Shanghai Jiao Tong University; Shanghai; China
School of Pharmacy; Shanghai University of Medicine & Health Sciences; Shanghai; China
Guangxi Huaping National Nature Reserve Administration; Guilin; Guangxi; China
School of Agriculture and Biology; Shanghai Jiao Tong University; Shanghai; China. Shanghai Urban Forest Research Station; State Forestry Administration; Shanghai; China
Annelida Amynthas earthworm Guangxi Megascolecidae new species

Abstract

Three new earthworm species of the genus Amynthas Kinberg, 1867 were found in Guangxi Zhuang Autonomous Region, China: Amynthas huapingensis sp. nov., Amynthas retentus sp. nov. and Amynthas linguiensis sp. nov. Amynthas huapingensis sp. nov. belongs to Amynthas corticis-group characterized by having four pairs of spermathecal pores in 5/6–8/9; Amynthas retentus sp. nov., without spermathecal pores, belongs to Amynthas illotus-group; Amynthas huapingensis sp. nov. and Amynthas retentus sp. nov. have similar characteristics of male porophores medially surrounded by 2–3 genital papillae in a pulvinate pad within the male pore area. Amynthas linguiensis sp. nov. has variable spermathecal pores, three pairs in 6/7–8/9 or four pairs in 5/6–8/9. And its male pores each on the center of a large elliptical glandular porophore which extends from 1/4xvii to 1/4xix. The morphological comparison and COI gene data of these three new species and their similar species are given in this paper.

 

References

  1. Bantaowong, U., Somniyam, P., Sutcharit, C., James, S.W. & Panha, S. (2014) Four new species of the earthworm genus Amynthas Kinberg, 1867, with redescription of the type species (Clitellata: Megascolecidae). Raffles Bulletin of Zoology, 62, 655–670.
  2. Blakemore, R.J. (2012) Amynthas carnosus (Goto & Hatai, 1899) redescribed on its neotype (Oligochaeta: Megadrilacea: Megascolecidae). Journal of Species Research, 1 (1), 35–43. https://doi.org/10.12651/JSR.2012.1.1.035
  3. Chen, Y. (1933) A preliminary survey of earthworm of the Yangtze valley. Contributions from the Biological Laboratory of Science Society of China, Zoological series, 9, 178–296.
  4. Chen, Y. (1935) On a small collection of earthworms from Hongkong with descriptions of some new species. Bulletin of the Fan Memorial Institute of Biology, 6, 33–59.
  5. Chen, Y. (1936) On the terrestrial Oligochaeta from Szechuan, II: with the notes on Gates’ types. Contributions from Biological Laboratory of the Science Society of China, Zoological Series, 11 (8), 269–306.
  6. Chen, Y. (1938) Oligochaeta from Hainan, Kwangtung. Contributions from Biological Laboratory of the Science Society of China, Zoological Series, 12, 375–427.
  7. Chen, Y. (1946) On the terrestrial Oligochaeta from Szechuan III. Journal of the West China Border Research Society, 16, 83–141.
  8. Dong, Y., Law, M.M.S., Jiang, J.B. & Qiu, J.P. (2019) Three new species and one subspecies of the Amynthas corticis-group from Guangxi Zhuang Autonomous Region, China (Oligochaeta, Megascolecidae). Zookeys, 884, 23–42. https://doi.org/10.3897/zookeys.884.30988
  9. Easton, E.G. (1981) Japanese earthworms: a synopsis of the megadrile species (Oligochaeta), Bulletin of the British Museum of Natural History, Zoology, 40 (2), 33–65.
  10. Folmer, O., Black, M., Hoeh, W., Lutz, R. & Vrijenhoek, R. (1994) DNA primers for amplification of mitochondrial cytochrome c oxidase subunit I from diverse metazoan invertebrates. Molecular Marine Biology and Biotechnology, 3 (5), 294–299.
  11. Gates, G.E. (1932) The earthworms of Burma. III. The Megascolecidae. Records of the Indian Museum, 34, 357–549. https://doi.org/10.26515/rzsi/v34/i4/1932/162577
  12. Gates, G.E. (1972) Burmese earthworms: an introduction to the systematics and biology of megadrile oligochaetes with special reference to Southeast Asia. Transactions of the American Philosophical Society, 62 (7), 1–326. https://doi.org/10.2307/1006214
  13. Hong, Y. & Kim, T.H. (2002) Four new earthworms of the genus Amynthas (Oligochaeta: Megascolecidae) from Korea.Korean Journal of Biological Sciences, 6 (3), 195–199. https://doi.org/10.1080/12265071.2002.9647651
  14. Hong, Y. & Kim, T.H. (2005) The Earthworm fauna from Ulleungdo Island, Korea with one new species of the genus Amynthas (Oligochaeta: Megascolecidae). The Korean Journal of Systematic Zoology, 21 (2), 129–136.
  15. James, S.W., Shih, H.T. & Chang, H.W. (2005) Seven new species of Amynthas (Clitellata: Megascolecidae) and new earthworm records from Taiwan. Journal of Natural History, 39 (14), 1007–1028. https://doi.org/10.1080/00222930400001434
  16. Nguyen, T.T., Lam, D.H., Trinh, B.T.K. & Nguyen, A.D. (2020a) The megascolecid earthworms (Annelida, Oligochaeta, Megascolecidae) in the Phu Quoc island, Vietnam, with descriptions of three new species. ZooKeys, 932, 1–25. https://doi.org/10.3897/zookeys.932.50314
  17. Nguyen, T.T., Tran, B.T., Lam, D.H. & Nguyen, A. D. (2020b) Four new species of Amynthas earthworms in southeastern Vietnam (Annelida, Oligochaeta, Megascolecidae). Zootaxa, 4790(2), 277–290. https://doi.org/10.11646/zootaxa.4790.2.5
  18. Ohfuchi, S. (1956) On a collection of the terrestrial Oligochaeta obtained from the various localities in Riu-kiu Islands, together with the consideration of their geographic distribution (Part 1). Journal of Agricultural Science Tokyo Nogyo Daigaku, 3 (1), 131–176.
  19. Qiu, J.P., Wang, H. & Wang, W. (1994) Notes on a new species of genus Amynthas from Guizhou province (Haplotaxida: Megascolecidae). Sichuan Journal of Zoology, 13 (4), 143–145.
  20. 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. Biological Journal of the linnean Society, 4 (3), 169–268. https://doi.org/10.1111/j.1095-8312.1972.tb00694.x
  21. Sun, J., Zhao, Q., Jiang, J.B. & Qiu, J.P. (2013) New Amynthas species (Oligochaeta: Megascolecidae) from south and central Hainan Island, China and estimates of evolutionary divergence among some corticis-group species. Journal of Natural History, 47 (17–18), 1143–1160. https://doi.org/10.1080/00222933.2012.743613
  22. Sun, J., Jiang, J.B., Hu, F. & Qiu, J.P. (2016) Four new earthworms of the genus Amynthas (Oligochaeta: Megascolecidae) from Mount Emei, Sichuan Province, China. Journal of Natural History, 50 (39–40), 2499–2513. https://doi.org/10.1080/00222933.2016.1193649
  23. Sun, J., Jiang, J.B., Bartlam, S., Qiu, J.P. & Hu, F. (2018) Four new Amynthas and Metaphire earthworm species from nine provinces in southern China. Zootaxa, 4496 (1), 287–301. https://doi.org/10.11646/zootaxa.4496.1.24
  24. Sun, J., Jiang, J.B., Wu, J.Z., Yuan, Z. & Qiu, J.P. (2021) Three new widely distributed and polymorphic species of Amynthas earthworms (Oligochaeta, Clitellata, Megascolecidae) from South China. Zootaxa, 4938 (4), 457–474. https://doi.org/10.11646/zootaxa.4938.4.5
  25. Shen, H.P., Tsai, C.F. & Tsai, S.C. (2003). Six new earthworms of the genus Amynthas (Oligochaeta: Megascolecidae) from central Taiwan. Zoological Studies, 42 (4), 479–490.
  26. Shen, H.P. (2012) Three new earthworms of the genus Amynthas (Megascolecidae: Oligochaeta) from eastern Taiwan with redescription of Amynthas hongyehensis Tsai and Shen, 2010. Journal of Natural History, 46 (37–38), 2259–2283. https://doi.org/10.1080/00222933.2012.716867
  27. Shen, H.P., Chang, C.H. & Chih, W.J. (2016) Four new earthworm species of the genus Amynthas (Megascolecidae: Oligochaeta) from southwestern Taiwan with re-description of Amynthas tungpuensis Tsai, Shen and Tsai, 1999. Journal of Natural History, 50 (29–30), 1889–1910. https://doi.org/10.1080/00222933.2016.1180721
  28. Sudhir, K., Glen, S., Michael, L., Christina, K. & Koichiro, T. (2018) MEGA X: Molecular Evolutionary Genetics Analysis across computing platforms. Molecular Biology and Evolution, 35 (6), 1547–1549. https://doi.org/10.1093/molbev/msy096
  29. Thompson, J.D., Gibson, T.J., Frédéric, P., Franois, J. & Higgins, D.G. (1997) The CLUSTAL X Windows Interface: Flexible Strategies for Multiple Sequence Alignment Aided by Quality Analysis Tools. Nucleic Acids Research, 25 (24), 4876–4882. https://doi.org/10.1093/nar/25.24.4876
  30. Tsai, C.F. (1964) On some earthworms belonging to the genus Pheretima Kinberg collected from Taipei area in north Taiwan. Quarterly Journal of the Taiwan Museum, 17, 1–35.
  31. Tsai, C.F., Shen, H.P. & Tsai, S.C. (2001) Some New Earthworms of the Genus Amynthas (Oligochaeta: Megascolecidae) from Mt. Hohuan of Taiwan. Zoological Studies, 40 (4), 276–288.
  32. Tsai, C.F., Shen, H.P. & Tsai, S.C. (2002) A new athecate earthworm of the genus Amynthas Kinberg (Megascolecidae: Oligochaeta) from Taiwan with discussion on phylogeny and biogeography of the A. illotus species-group. Journal of Natural History, 36 (7), 757–765. https://doi.org/10.1080/00222930010026391
  33. Tsai, C.F., Shen, H.P., Tsai, S.C. & Lee, H.H. (2007) Four new species of terrestrial earthworms belonging to the genus Amynthas (Megascolecidae: Oligochaeta) from Taiwan with discussion on speculative synonyms and species delimitation in oligochaete taxonomy. Journal of Natural History, 41 (5–8), 357–379. https://doi.org/10.1080/00222930701201279
  34. Zhong, Y.H. & Qiu, J.P. (1987) First record of the earthworm genus Amynthas Kinberg, 1867 in China, with re-description of Amynthas glabrus (Gates, 1932) found in Sichuan and Guizhou Province, China. Sichuan Journal of Zoology, 2, 28–29. [in Chinese]