Abstract
Three species of Ditrichocorycaeus [D. dahli (Tanaka, 1957), D. lubbocki (Giesbrecht, 1981), and D. subtilis (Dahl, 1912)] are first redescribed from southern area of Jeju Island, Korea. Morphological details such as mouthparts, ornamentation of genital double-somite, spine lengths of legs, and proportional lengths of caudal setae, are provided as new identification keys separating each species within Ditrichocorycaeus and/or each genus within Corycaeidae. In particular, the number and location of each segment on the body and antenna are re-examined and precisely defined. Also, few valid morphological characters of this genus distinguishing it from other genera are newly proposed as follows: 1) prosomes of both sexes are five-segmented; 2) basis of maxilliped with relatively longer proximal seta than in other genera.
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References
Böttger-Schnack R, Machida RJ (2010) Comparison of morphological and molecular traits for species identification and taxonomic grouping of oncaeid copepods. Hydrobiologia 666:111–125
Boxshall GA, Halsey SH (2004) An Introduction to Copepod Diversity. The Ray Soc London, 966 p
Chen QC, Zhang SZ, Zhu CS (1974) On planktonic copepods of the Yellow Sea and the East China Sea. 2. Cyclopoida and Harpacticoida. Stud Mar Sin 9:64–66
Dahl M (1912) Die Copepoden der Plankton-Expedition I. Die Corycaeinen. Mit Berücksichtigung aller bekannten Arten Ergebn. Plankton-Exped 2G f1:1–136
Farran GP (1911) Plankton from Christmas Island, Indian Ocean. I. On Copepoda of the family Corycaeidae. Proc Zool Soc Lond 1911:282–296
Früchtl F (1924) Die Cladoceren und Copepoden Fauna des Aru-Archipels. Mit Beiträgen zur Kenntnis der strukturellen Anomalien indo-pazifischer Plankton-Copepoden. Arb Zool Inst Univ Innsbruck 2:1–114
Giesbrecht W (1891) Elenco dei Copepodi pelagic raccolti dal tenente di vascello Gaetano Chierchia durante il viaggio della R. Corvetta, Vettor Pisani negli anni 1882–1885, e dal tenente di vascello Francesco Orsini nel Mar Rosso, nel 1884. Atti Accad Naz Lincei 4(7):659–671
Giesbrecht W (1892) Systematik und Faunistik der pelagischen Copepoden des Golfes von Neapel und der angrenzenden Meeres-abschnitte. Fauna Flora Golf Neapel 19:1–831
Hsiao SH, Fang TH, Shih CT, Hwang JS (2011) Effects of the Kuroshio Current on Copepod Assemblages in Taiwan. Zool Stud 50(4):475–490
Hsieh CH, Chiu TS, Shih CT (2004) Copepod diversity and composition as indicators of intrusion of the Kuroshio Branch Current into the Northern Taiwan Strait in Spring 2000. Zool Stud 43:393–403
Huys R, Boxshall GA (1991) Copepod Evolution. The Ray Society, London, 468 p
Kang YS, Huh SH, Lee SS (1990) Taxonomy and Distribution of Corycaeidae (Copepoda: Cyclopoida) in the Korean Waters in Summer. J Oceanol Soc Korea 25(2):49–61
Lee CY, Liu DC, Su WC (2009) Seasonal and spatial variations in the planktonic copepod community of Ilan Bay and adjacent Kuroshio waters off northeastern Taiwan. Zool Stud 48:151–161
Motoda S (1963) Corycaeus and Farranula (Copepoda, Cyclopoida) in Hawaiian waters. Pub Seto Mar Biol Lab 11(2):209–262
Nagai N, Tadokoro K, Kuroda K, Sugimoto T (2006) Occurrence characteristics of chaetognath species along the PM transect in the Japan Sea during 1972–2002. J Oceanogr 62:597–606
Nagai N, Tadokoro K, Kuroda K, Sugimoto T (2008) Chaetognath species-specic responses to climate regime shifts in the Tsushima Warm Current of the Japan Sea. Plank Benth Res 3(2):86–95
Razouls C (1974) Les Corycaeidae (Copepoda, Cyclopoidea) de la region de Benguela (Golfe Du Lion). Vie Millieu 24:83–113
Razouls C, de Bovée F, Kouwenberg J, Desreumaux N (2013) Diversity and Geographic Distribution of Marine Planktonic Copepods. http://copepodes.obs-banyuls.fr/en. Accessed 26 Nov 2013
Sewell RBS (1947) The free-swimming planktonic copepod: Systematic account. British Muse John Murray Exped Sci Rep 8(1):1–303
Tanaka O (1957) On Copepoda of the family Corycaeidae in Japanese waters. J Fac Agric Kyushu Univ 11:77–97
Tang X, Wang F, Chen Y, Li M (2009) Warming trend in northern East China Sea in recent four decades. Chinese J Oceanol Limnol 27(2):185–191
Vidjak O, Bojaniæ N (2008) Redescription of Ditrichocorycaeus minimus indicus M. Dahl, 1912 (Copepoda: Cyclopoida, Corycaeidae) from the Adriatic Sea. J Plank Res 30:233–240
Wi JH, Soh HY (2013a) Two Farranula (Copepoda, Cyclopoida, Corycaeidae) species from Korean waters. J Nat Hist 47(5–12):289–312
Wi JH, Soh HY (2013b) A new species of Farranula (Copepoda, Cyclopoida, Corycaeidae) and a redescription of Farranula carinata from off Jeju Island, Korea. J Mar Biol Assoc UK 93(7):1813–1824
Wilson CB (1942) The copepods of the plankton gathered during the last cruise of the Carnegie. J P Ault Carnegie Inst Wash Publ 536:1–237
Zheng Z, Li S, Li SJ, Chen B (1982) Marine planktonic copepods in Chinese waters. Shanghai Sci Tech Press, Shanghai, 151 p (in Chinese)
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Wi, J.H., Kim, D.H. & Soh, H.Y. Three species of Ditrichocorycaeus (Copepoda, Cyclopoida, Corycaeidae) from Korean waters, with new identification parameters. Ocean Sci. J. 48, 419–437 (2013). https://doi.org/10.1007/s12601-013-0036-8
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DOI: https://doi.org/10.1007/s12601-013-0036-8