Advanced SearchSearch Tips
Metacyclops woni n. sp., a New Cyclopoid Species (Copepoda: Cyclopoida: Cyclopidae) from Cambodia
facebook(new window)  Pirnt(new window) E-mail(new window) Excel Download
 Title & Authors
Metacyclops woni n. sp., a New Cyclopoid Species (Copepoda: Cyclopoida: Cyclopidae) from Cambodia
Lee, Jimin; Chang, Cheon Young;
  PDF(new window)
A new cyclopoid species belonging to the genus Metacyclops Kiefer, 1927 is described, based upon the specimens from a temporary pool in a forest of Mt. Phnom Domnak Dambouk, situated in the southwestern part of Cambodia. Metacyclops woni sp. nov. is characterized by its quite short caudal rami, about 2.5 times longer than wide, with a spinule row on anterior quarter of lateral margin. This new species belongs to the species group with the spine formula 3,4,4,3 of swimming legs 1-4. Among the members of the species group with the combination of characters of 11-segmented antennule and a single apical spine on the second endopodal segment of leg 4, it most resembles M. deserticus Mercado-Salas and Suárez-Morales, 2013 from Mexico in carrying an outermost caudal seta slightly longer than the innermost caudal seta and an apical spine on the second endopodal segment of leg 4 slightly shorter than the segment. However, it differs clearly from the present new species by much longer caudal rami with lateral caudal seta at nearly halfway of lateral margin of the ramus and smooth posterior margin of intercoxal sclerites of legs 1-4. This is the first record of the genus Metacyclops from Cambodia and the fourth one from Southeast Asia.
Asia;description;morphology;taxonomy;temporary pool;
 Cited by
Boxshall GA, Halsey SH, 2004. An introduction to copepod diversity. The Ray Society, London, pp. 1-966.

Chaicharoen R, Sanoamuang LO, Hołyńska M, 2011. A review of the genus Thermocyclops (Crustacea: Copepoda: Cyclopoida) in Cambodia. Zoological Studies, 50:780-803.

Chang CY, 2012. Discovery of Halicyclops continentalis (Cyclopidae, Halicyclopinae) from estuaries and salt marshes on the west coast of South Korea. Animal Systematics Evolution and Diversity, 28:12-19. crossref(new window)

Dussart BH, Defaye D, 1995. Introduction to the copépoda. In: Guides to the identification of the microinvertebrates of the continental waters of the world. Vol. 7 (Ed., Dumont, HJF). SPB Academic Publishing, Amsterdam, pp. 1-277.

Dussart BH, Frutos SM, 1986. Sur quelques Copépodes d’Argentine. Revue d’Hydrobiologie Tropicale, 18:305-314.

Fernando CH, Ponyi JE, 1981. The free living freshwater cyclopoid Copepoda (Crustacea) of Malaysia and Singapore. Hydrobiologia, 78:113-123. crossref(new window)

Herbst HV, 1988. Zwei neue Metacyclops (Crustacea Copepoda) von den westindischen Inseln Barbados und Aruba: M. agnitus n. sp. und M. mutatus n. sp., sowie ein Bestimmungsschlüssel für das Genus. Amsterdam Expedition to the West Indian Islands, report 54. Bijdragen tot de Dierkunde, 58:137-154.

Huys R, Boxshall GA, 1991. Copepod evolution. The Ray Society, London, pp. 1-468.

Ishida T, 1995. A new species of Metacyclops (Crustacea, Copepoda, Cyclopoida) from Ishigaki Island, the Ryukyu Islands. Proceedings of the Japan Society of Systematic Zoology, 54:33-37.

Ishida T, Tomikawa K, 2007. Cyclopoid and harpacticoid copepods (Crustacea: Copepoda) in Lake Tonle Sap and its surrounding waters in Cambodia. Biology of Inland Waters, 22:1-13.

Karanovic T, 2004. The genus Metacyclops Kiefer in Australia (Crustacea: Copepoda: Cyclopoida), with description of two new species. Records of the Western Australian Museum, 22:193-212. crossref(new window)

Karanovic T, Eberhard SM, Murdoch A, 2011. A cladistic analysis and taxonomic revision of Australian Metacyclops and Goniocyclops, with description of four new species and three new genera (Copepoda, Cyclopoida). Crustaceana, 84:1-67. crossref(new window)

Kiefer F, 1930. Neue Cyclopiden von den Sunda-Inseln. 2. Mitteilung über die Cyclopiden der Deutschen Limnologischen Sunda-Expedition. Zoologischer Anzeiger, 90:55-58.

Lim RP, Fernando CH, 1985. A review of the Malaysian freshwater Copepoda with notes on new records and little known species. Hydrobiologia,128:71-89. crossref(new window)

Lindberg K, 1938. Cyclopides (Crustacés Copépodes) nouveaux de l’Inde. Bulletin de la Société Zoologique de France, 63: 288-302.

Lindberg K, 1940. Cyclopoïdes (Crustacés Copépodes) de l’Inde. Records of the Indian Museum, Calcutta, 42:519-526.

Mann AK, 1940. Über pelagische Copepoden türkischer Seen (mit Berücksichtigung des übrigen Planktons). Internationale Revue der Gesamten Hydrobiologie und Hydrographie, 40:1-87. crossref(new window)

Mercado-Salas NF, Suárez-Morales E, Maeda-Martinez AM, Silva-Briano M, 2013. A new species of Metacyclops Kiefer, 1927 (Copepoda, Cyclopidae, Cyclopinae) from the Chihuahuan desert, northern Mexico. Zookeys, 287:1-18. crossref(new window)

Pesce ML, 2015. Metacyclops Kiefer, 1927. Copepod Web Portal, Accessed 18 Mar 2015, <>.

Reid JW, 1991. The genus Metacyclops (Copepoda: Cyclopoida) present in North America: M. cushae, new species, from Louisiana. Journal of Crustacean Biology, 11:639-646. crossref(new window)

Shen CJ, Tai AY, 1964. Descriptions of new species of fresh-water Copepoda from Kwangtung Province, South China. Acta Zootaxonomica Sinica, 1:367-396.

Shirayama Y, Kaku T, Higgins RP, 1993. Double-sided microscopic observation of meiofauna using an HS-slide. Benthos Research, 44:41-44.

Tai AY, Chen GX, 1979. Cyclopoida. In: Freshwater Copepoda. (Ed., Shen CJ). Fauna Sinica, Crustacea. Science Press, Beijing, pp. 301-420 (in Chinese).

Tran DL, Chang CY, 2012. Two new species of harpacticoid copepods from anchialine caves in karst area of North Vietnam. Animal Cells and Systems, 16:57-68. crossref(new window)

Tran DL, Chang CY, 2013. Graeteriella (Graeteriella) longifurcata, new species, a stygobitic cyclopoid species (Copepoda: Cyclopoida: Cyclopidae) from Central Vietnam. Proceedings of the Biological Society of Washington, 126:245-258. crossref(new window)