Abstract
The genus Eodiaptomus Kiefer contains six species, five of which are distributed in Asia, and one in Australia and New Guinea. A seventh species, E. sanuamuangae n.sp., is now added from Thailand. It has hitherto been misidentified as E. sinensis (Burckhardt), but can be recognized by various morphologic criteria. In the female, both spines on either wing of the fifth pediger are laterally placed. The third endopodite-segment of P2–P4 has seven, instead of six, setae. The sensory seta on the basis of P5 is extraordinarily long. On the male right antennule, the spine on segment 8 is much reduced, whereas that on segment 15 is relatively strong; the spinous process on the antepenultimate segment is slender, straight, with a hooked tip and as long as the next segment. Morphologically and geographically, E. sanuamuangae n.sp. links the Asian to the Australian forms. The Australian E. lumholtzi (Sars) is redescribed. A detailed morphological comparison is made of all Eodiaptomus spp. Their taxonomic characters, interspecies relationship, and biogeography are discussed.
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References
Balyly, I. A. E., 1966. The Australian species of Diaptomus (Copepoda, Calanoida) and their distribution. Aust. J. mar. Freshwat. Res. 17: 123–134.
Borutzky, E. V., L. A. Stepanova & M. S. Kos, 1991. Key to Calanoida of freshwaters of the USSR. St. Peterburg: Publ. ‘Nauka’, 503 pp. (in Russian; English Abstract).
Brehm, V., 1933. Mitteilungen von der Wallacea-Expedition Woltereck. Mitteilung VI. Die Alonaund Alonella-Arten von Dagiangan. Zool. Anz. 104: 77–84.
Brehm, V., 1942. Uber die Diaptomiden und Pseudodiaptomiden der Zwischenregion Wallacea. Int. Rev. ges. Hydrobiol. 42: 269–288.
Brooks, J. L., 1950. Speciation in ancient lakes. Quart. Rev. Biol. 25: 30–36, 131-176.
Burckhardt, G., 1913. Wissenschaftliche Ergebnisse einer Reise um die Erde von M. Pernod und C. Schröter. III. Zooplankton aus ostundüdasiatischen Binnengewässern. Zool. Jb. Syst. 34: 341–472.
Dumont, H. J., 1994. Ancient lakes have simplified pelagic food webs. Arch. Hydrobiol. Biol. Ergebn. Limnol. 44: 223–234.
Dussart, B. H. & D. Defaye, 1983. Répertoire mondial des Crustacés Copepodes eaux intérieures. I. Calanoïdes. CNRS, Paris, 224 pp.
Fernando, C. H., 1974. Guide to the freshwater fauna of Ceylon (Sri Lanka). Suppl. 4. Bull. Fish. Res. Stn., Sri Lanka (Ceylon). 25: 27–81.
Guerne, J. de & J. Richard, 1889. Revision des Calanides d'eau douce. Mém. Soc. zool. Fr. 2: 53–181.
Kiefer, F., 1932. Versuch eines systems der Diaptomiden (Copepoda, Calanoida). Zool. Jb. Syst. 63: 451–520.
Lai, H. C., 1986. The freshwater Calanoida (Crustacea, Copepoda) of Indonesia. IndoMalayan Zool. 3: 39–61.
Mashiko, K., 1951. Studies of the freshwater plankton of central China, II. Sci. Rep. Kanazawa Univ. 1: 137–154.
Mendis, A. S. & C. H. Fernando, 1962. A guide to the freshwater fauna of Ceylon. Fish. Res. Stn., Dept. Fish., Ceylon, 12: 1–160.
Mizuno, T., 1984. Nihon no rikusui san Calanoida (Freshwater Calanoida in Japan). In T. Mizuno et al. (eds), Freshwater Copepoda. Tatara Shobo, Yanago (in Japanese): 475–499.
Reddy, Y. R., 1994. Copepoda: Calanoida: Diaptomidae. Key to the genera Heliodiaptomus, Allodiaptomus, Neodiaptomus, Phyllodiaptomus, Eodiaptomus, Arctodiaptomus and Sinodiaptomus. SPB Academic Publ., The Hague, 221 pp.
Sars, G. O., 1889. On some freshwater Ostracoda and Copepoda, raised from dried Australian mud. Forh. Vidensk. Selsk. Krist. 1889: 3–79.
Shen, C. J. & D. X. Song, 1979. Calanoida. In Fauna Sinica. Crustacea. Freshwater Copepoda. Science Press, Peking, 450 pp. (in Chinese).
Shen, C. J. & T. H. Sung, 1965. The freshwater copepods of the Bai-Yang-Dien Lake, Hopeh Province. Acta Zool. Sin. 17: 167–183 (in Chinese: English Sumary).
Shen, C. J. & A. Y. Tai, 1962. The Copepoda of Wu-Li Lake, Wu-Shi, Kiangsu Province. I Calanoida. Acta Zool. Sin. 14: 99–118 (in Chinese: English summary).
Timms, B.V. & D.W. Morton, 1988. Crustacean zooplankton assemblages in freshwaters of tropical Australia. Hydrobiologia 164: 161–169.
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Ranga Reddy, Y., Dumont, H.J. A review of the genus Eodiaptomus Kiefer, 1932, with the description of E. sanuamuangae n.sp. from Thailand, and a redescription of E. lumholtzi (Sars, 1889) from Australia (Copepoda, Calanoida). Hydrobiologia 361, 169–189 (1997). https://doi.org/10.1023/A:1003145526468
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DOI: https://doi.org/10.1023/A:1003145526468