A Revised Taxonomic Account of Ricefish Oryzias (Beloniformes; Adrianichthyidae), in Thailand, Indonesia and Japan

Authors

  • WICHIAN MAGTOON Department of Biology, Faculty of Science, Srinakharinwirot University, Bangkok 10110, Thailand
  • APHICHART TERMVIDCHAKORN Inland Fisheries Research and Development Bureau, Department of Fisheries, Bangkok 10900, Thailand

Keywords:

Oryzias, Revision, Morphological difference, Cluster analysis

Abstract

A taxonomic account of Oryzias minutillus, O. mekongensis, O. dancena, and O. javanicus from Thailand, O. celebensis from Indonesia and O. latipes from Japan are redescribed. Six distinct species are recognized. Keys, descriptions and illustrations of the species are presented. Morphological differences between and within all six species are clarified. Twenty-two morphometric characters and ten meristic characters were examined, and 14 morphometric and nine meristic characters were found to differ amongst the six species. Anal-fin ray numbers of O. cellebensis, O. javanicus, O. dancena, O. minutillus, O. latipes and O. mekongensis were 22, 23, 24, 19, 18 and 15, respectively. These differences suggest that the six species may be reproductively isolated from each other.

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Published

2009-04-01

How to Cite

[1]
MAGTOON, W. and TERMVIDCHAKORN, A. 2009. A Revised Taxonomic Account of Ricefish Oryzias (Beloniformes; Adrianichthyidae), in Thailand, Indonesia and Japan. Tropical Natural History. 9, 1 (Apr. 2009), 35–68.

Issue

Vol. 9 No. 1 (2009): The Natural History Journal of Chulalongkorn University

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