Two New Species of Semi-Aquatic Freshwater Earthworm Genus Glyphidrilus Horst, 1889 (Oligochaeta: Almidae) from Thailand and Laos

Authors

  • Ratmanee Chanabun Program in Animal Science, Faculty of Agricultural Technology, Sakon Nakhon Rajabhat University, Sakon Nakhon 47000, THAILAND; Biodiversity and Utilization Research Unit, Center of Excellence in Modern Agriculture, Sakon Nakhon Rajabhat University, Sakon Nakhon 47000, THAILAND
  • Parin Jirapatrasilp Animal Systematics Research Unit, Department of Biology, Faculty of Science, Chulalongkorn University, Bangkok 10330, THAILAND
  • Teerapong Seesamut Animal Systematics Research Unit, Department of Biology, Faculty of Science, Chulalongkorn University, Bangkok 10330, THAILAND
  • Ueangfa Bantaowong Division of Biology, Faculty of Science and Technology, Rajamangala University of Technology Thanyaburi, Pathum Thani 12110, THAILAND
  • Anuwat Aoonkum Biodiversity and Utilization Research Unit, Center of Excellence in Modern Agriculture, Sakon Nakhon Rajabhat University, Sakon Nakhon 47000, THAILAND; Faculty of Agricultural Technology, Sakon Nakhon Rajabhat University, Sakon Nakhon 47000, THAILAND
  • Khamla Inkhavilay Department of Biology, Faculty of Natural Science, National University of Laos, P.O. Box 7322, Dongdok, Vientiane, LAOS

Keywords:

Glyphidrilus, earthworm, new species, Thailand, Laos, taxonomy

Abstract

Material of the semi-aquatic freshwater earthworm genus Glyphidrilus Horst, 1889 recently collected from Thailand and Laos contains two new species: G. panhai Chanabun, sp. nov. from Song Khram River, Buengkan, Thailand and G. samueljamesi Chanabun, sp. nov. from Khon Phapheng Waterfall, Mekong River, Champasak, Laos. Morphological characters of both new species are distinctly different from the previous recognized species. Glyphidrilus panhai sp. nov. has wings in 23, 24–29, 30, 31, clitellum in 17, 18–32, 33, 34, 35, and spermathecae in 13/14 (14/15)–18/19. Glyphidrilus samueljamesi sp. nov. has wings in 25, 26, 27–33, 34, 35, 36, clitellum in 18, 19, 20–40, 41, 42, 43, 44, and spermathecae in 13/14 –20/21. Descriptions of all new species including illustrations of the external and internal morphological characteristics are provided.

References

Bantaowong, U., Chanabun, R., Tongkerd, P., Sutcharit, C., James, S. and Panha, S. 2011a. New earthworm species of the genus Amynthas Kinberg, 1867 from Thailand (Clitellata: Megasco-lecidae). ZooKeys, 90: 35–62.

Bantaowong, U., Chanabun, R., Tongkerd, P., Sutcharit, C., James, S.W. and Panha, S. 2011b. A new species of the terrestrial earthworm of the genus Metaphire Sim & Easton, 1972 from Thailand with redescription of some species. Tropical Natural History, 11(1): 55–69.

Beddard, F.E. 1912. Earthworms and their allies. Cambridge University Press, New York, 150 pp.

Brinkhurst, R.O. and Jamieson, B.G.M. 1971. Aquatic Oligochaeta of the World. University of Toronto Press, Edinburgh, 753 pp.

Chanabun, R., Bantaowong, U., Sutcharit, C., Tongkerd, P., Inkha-vilay, K., James, S.W. and Panha, S. 2011. A new species of semi-aquatic freshwater earthworm of the genus Glyphidrilus Horst, 1889 from Laos (Oligochaeta: Almidae). Tropical Natural History, 11 (2): 213–222.

Chanabun, R., Bantaowong, U., Sutcharit, C., Tongkerd, P., James, S.W. and Panha, S. 2012a. A new species of semi-aquatic freshwater earthworm of the genus Glyphidrilus Horst, 1889 from the Mekong River (Oligochaeta: Almidae). The Raffles Bulletin of Zoology, 60 (2): 265–277.

Chanabun, R., Sutcharit, C., Tongkerd, P., Tan, S.H.A. and Panha, S. 2012b. Three new species of semi-aquatic freshwater earth-worms of the genus Glyphidrilus Horst, 1889 from Malaysia (Clitellata: Oligochaeta: Almidae). Zootaxa, 3458: 120–132.

Chanabun, R., Sutcharit, C., Tongkerd, P. and Panha, S. 2013. The semi-aquatic freshwater earthworms of the genus Glyphidrilus Horst, 1889 from Thailand (Oligochaeta, Almidae) with re-descriptions of several species. ZooKeys, 265: 1–76.

Chanabun, R. and Panha, S. 2015. Two new species of semi-aquatic earthworms genus Glyphidrilus Horst, 1889 from Malaysia (Oligochaeta: Almidae). Tropical Natural History, 15 (2): 179–189.

Chanabun, R., Inkavilay, K., and Panha, S. 2017. New species of semi-aquatic freshwater earthworm genus Glyphidrilus Horst, 1889 from Thailand and Laos (Oligochaeta, Almidae). ZooKeys, 672: 1–34.

Chanabun, R., Lin, A., Jirapatrasilp, P. and Bantaowong, U. 2020. The semi-aquatic freshwater earthworm genus Glyphidrilus Horst, 1889 from Myanmar (Oligochaeta: Almidae) with description of a new species. Tropical Natural History, 20(2): 203–218.

Chang, C.H. and James, S.W. 2011. A critique of earthworm mole-cular phylogenetics. Pedobiologia, 54, Supplement: S3–S9.

Chang, C.H., Chuang, S.C., Wu, J.H. and Chen, J.H. 2014. New species of earthworms belonging to the Metaphire formosae species group (Clitellata: Megascolecidae) in Taiwan. Zootaxa, 3774: 324–332.

Chen, Y. and Xu, Z.F. 1977. On some new earthworms from China II. Acta Zoologica Sinica, 23: 175–181.

Decaëns, T., Porco, D., Rougerie, R., Brown, G.G. and James, S.W. 2013. Potential of DNA barcoding for earthworm research in taxonomy and ecology. Applied Soil Ecology, 65: 35–42.

Duboscq, O. 1902. Alma zebanguii n. sp., et les Alminae, Oligo-chètes de la famille des Glossoscolecidae Mich. Archives de zoologie expérimentale et générale, Notes 3, 10(7): xcvii–cvi.

Enghoff, H., Sutcharit, C. and Panha, S. 2007. The shocking pink dragon millipede Demoxytes purpurosea, a colourful new species from Thailand (Diplopoda, Polydesmida, Paradoxoso-matidae). Zootaxa, 1563: 31–36.

Gates, G.E. 1972. Burmese earthworms, an introduction to the systematics and biology of megadrile oligochaetes with special reference to the Southeast Asia. Transactions of the American Philosophical Society, 62: 1–326.

Horst, R. 1889. Over eene nieuwe soort order de Lumbricinen door Prof. Max Weber uit nedenl. Indiё medegebracht. Tijdschrift der Nederlandsche Dierkundige Vereeniging, 2: 77.

Jamieson, B.G.M. 1968. A new species of Glyphidrilus (Micro-chaetidae: Oligochaeta) from East Africa. Journal of Natural History, 2: 387–395.

Jeratthitikul, E., Bantaowong, U. and Panha, S. 2017. DNA barco-ding of the Thai species of terrestrial earthworms in the genera Amynthas and Metaphire (Haplotaxida: Megascolecidae). Euro-pean Journal of Soil Biology, 81: 39–47.

Jirapatrasilp, P., Prasankok, P., Sutcharit, C., Chanabun, R. and Panha, S. 2016. Two new Cambodian semi-aquatic earthworms in the genus Glyphidrilus Horst, 1889 (Oligochaeta, Almidae), based on morphological and molecular data. Zootaxa, 4189(3): 543–558.

Jirapatrasilp, P., Backeljau, T., Prasankok, P., Chanabun, R. and Panha, S. 2019. Untangling a mess of worms: Species delimi-tations reveal morphological crypsis and variability in South-east Asian semi-aquatic earthworms (Almidae, Glyphidrilus). Molecular Phylogenetics and Evolution, 139: 106531.

Marchán, D.F., Jiménez, S., Decaëns, T. and Domínguez, J. 2021. Systematic revision of Gatesona (Crassiclitellata, Lumbri-cidae), an endemic earthworm genus from the Massif Central (France). PLoS ONE, 16(9): e0255978.

Martinsson, S. and Erséus, C. 2018. Hybridisation and species delimitation of Scandinavian Eisenia spp. (Clitellata: Lumbri-cidae). European Journal of Soil Biology, 88: 41–47.

Martinsson, S. and Erséus, C. 2021. Cryptic Clitellata: molecular species delimitation of clitellate worms (Annelida): an overview. Diversity, 13(2): 36.

Michaelsen, W. 1896. Oligochaeten. Ergebnisse einer zoologischen Forschungsreise in den Molukken und in Borneo, im Auftrage der Senckenbergischen naturforschenden Gesellschaft ausge-führt von Dr. Willy Kükenthal. Abhandlungen der Senckenber-gischen naturforschenden Gesellschaft, 23: 193–243.

Michaelsen, W. 1897. Neue und wenig bekannte afrikanische Terricolen. Mitteilungen aus dem Naturhistorischen Museum, 14: 1–71.

Nguyen, T.T., Lam, D.H. and Nguyen, A.D. 2021. Notes on the earthworm species, Metaphire anomala (Michaelsen, 1907) (Clitellata, Megascolecidae) in Southern Vietnam, with descripttions of two new species. European Journal of Taxo-nomy, 746(1): 94–111.

Nguyen, T.T., Lam, D.H. and Nguyen, A.D. 2022. Two new earthworm species (Annelida, Oligochaeta, Megascolecidae) from the Mekong delta, Vietnam. Zootaxa, 5093(4): 483–492.

Shekhovtsov, S.V., Shipova, A.A., Poluboyarova, T.V., Vasiliev, G.V., Golovanova, E.V., Geraskina, A.P., Bulakhova, N.A., Szederjesi, T. and Peltek, S.E. 2020. Species delimitation of the Eisenia nordenskioldi complex (Oligochaeta, Lumbricidae) using transcriptomic data. Frontiers in Genetics, 11: 598196.

Shen, H.P. and Yeo, D.C.J. 2005. Terrestrial earthworms (Oligo-chaeta) from Singapore. The Raffles Bulletin of Zoology, 53: 13–33.

Shen, H.P., Chang, C.H. and Chih, W.J. 2019. Two new earthworm species of the genus Amynthas (Oligochaeta: Megascolecidae) from central Taiwan, with comments on some recent species assignments in Amynthas and Metaphire. Zootaxa, 4658(1): 101–123.

Sun, J., Jiang, J.B., Wu, J., Yuan, Z. and 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.

Zicsi, A. 1996. Neue und bekannte Regenwürmer (Oligochaeta) aus Ost-Afrika. Mitteilungen aus dem Hamburgischen Zoologis-chen Museum und Institut, 93: 17–37.

Downloads

Published

2023-05-06

How to Cite

[1]
Chanabun, R. , Jirapatrasilp, P. , Seesamut, T. , Bantaowong, U. , Aoonkum, A. and Inkhavilay, K. 2023. Two New Species of Semi-Aquatic Freshwater Earthworm Genus Glyphidrilus Horst, 1889 (Oligochaeta: Almidae) from Thailand and Laos. Tropical Natural History. 7 (May 2023), 31–40.

Issue

Section

Original Articles

Categories