A New Species of Semi-aquatic Freshwater Earthworm of the Genus Glyphidrilus Horst, 1889 from Laos (Oligochaeta: Almidae)

Authors

  • RATMANEE CHANABUN Animal Systematics Research Unit, Department of Biology, Faculty of Science, Chulalongkorn University, Bangkok 10330, THAILAND
  • UEANGFA BANTAOWONG Animal Systematics Research Unit, Department of Biology, Faculty of Science, Chulalongkorn University, Bangkok 10330, THAILAND
  • CHIRASAK SUTCHARIT Animal Systematics Research Unit, Department of Biology, Faculty of Science, Chulalongkorn University, Bangkok 10330, THAILAND
  • PIYOROS TONGKERD Animal Systematics Research Unit, Department of Biology, Faculty of Science, Chulalongkorn University, Bangkok 10330, THAILAND
  • KHAMLA INKAVILAY Department of Biology, Faculty of Science, National University of Laos, Vientiane, Laos P.D.R.
  • SAMUEL W. JAMES University of Iowa, Department of Biology, Iowa City, IA 52242, USA
  • SOMSAK PANHA University of Iowa, Department of Biology, Iowa City, IA 52242, USA

Abstract

The discovery of a new semi-aquatic earthworm of the genus Glyphidrilus Horst, 1889 from the Song River, Vangvieng, Laos is reported. The description of the new species includes morphological characters of the adults. After comparing with the closely related species described from SE Asia, Glyphidrilus vangviengensis Panha and Chanabun, n. sp. is described. The new species differs from its congeners by having long clitellar wings at xxiv–xxxii, no genital pores but the median unpaired genital markings are observed at xii, xiii, xiv, xv; paired genital markings are at xviii, xix, xx, xxi–xxii, xxiii, xiv and xxxiii, xxxiv. Seminal vesicles are present but atrial glands and spermathecae are lacking.

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Published

2011-10-01

How to Cite

[1]
CHANABUN, R., BANTAOWONG, U., SUTCHARIT, C., TONGKERD, P., INKAVILAY, 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 (Oct. 2011), 213–222.

Issue

Vol. 11 No. 2 (2011): October

Section

Original Articles

License

Chulalongkorn University. All rights reserved. No part of this publication may be reproduced, translated, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording or otherwise, without prior written permission of the publisher