Species Card of Copepod
Calanoida ( Order )
    Diaptomoidea ( Superfamily )
        Pseudodiaptomidae ( Family )
            Pseudodiaptomus ( Genus )
Pseudodiaptomus nihonkaiensis  Hirakawa, 1983   (F,M)
Syn.: Pseudodiaptomus cornutus : Tanaka, 1966 (p.40, figs.F)
Ref.:
Hirakawa, 1983 (p.65, figs.F,M, Rem.); Walter, 1986 (p.133); 1986 a (p.503); 1987 (p.368); Chihara & Murano, 1997 (p.894, Pl.166: F,M); Soh & al., 2001 (p.206, figs.F,M); Eyun & al., 2007 (p.265, molecular biology)
Species Pseudodiaptomus nihonkaiensis - Plate 1 of morphological figuresissued from : O. Tanaka in Proceedings Symposium on Crustacea. Symp. Ser. mar. biol. Ass. India, 1966, (2) 1. [p.41, Fig.2]. As Pseudodiaptomus cornutus.
Female: a, habitus (dorsal); b, head (lateral); c, last thoracic segment and urosome (lateral left side); d, anal segment and furca (dorsal); e, P2; f, P5.
Nota: The urosome segments and furca are in the proportional lengths as 31:14:17:16:22 = 100. Prosome and urosome are in the proportional lengths as 70:30. P5 is symmetrical.


Species Pseudodiaptomus nihonkaiensis - Plate 2 of morphological figuresissued from : H.Y. Soh, H.-L Suh, O.H. Yu & S. Ohtsuka in Hydrobiologia, 2001, 448. [p.212, Fig.7].
Female: A, habitus (dorsal); B, idem (lateral right side); C, P5 (posterior view).

Male: D, habitus (dorsal); E, idem (lateral right side); F, right A1 (segments VIII-XV); G, P5 (posterior view).


Species Pseudodiaptomus nihonkaiensis - Plate 3 of morphological figuresissued from : H.Y. Soh, H.-L Suh, O.H. Yu & S. Ohtsuka in Hydrobiologia, 2001, 448. [p.213, Fig.8, A].
Female: A, scanning electron micrographs of the genital area.


Species Pseudodiaptomus nihonkaiensis - Plate 4 of morphological figuresissued from : K. Hirakawa in Bull. Plankton Soc. Japan, 1983, 30 (1). [p.66, Fig.1].
Female (from Izumozaki harbour, Japan): a-b, habitus (dorsal and lateral, respectively); c, cross section of 2nd thoracic somite; d-e, urosome (dorsal and lateral, respectively); f, genital somite (ventral).


Species Pseudodiaptomus nihonkaiensis - Plate 5 of morphological figuresissued from : K. Hirakawa in Bull. Plankton Soc. Japan, 1983, 30 (1). [p.67, Fig.2].
Female: a, A1; b, A2; c, Md; d, Mx1; e, Mx2; f, Mxp; g-k, P1 to P5; l, terminal segment of P5.


Species Pseudodiaptomus nihonkaiensis - Plate 6 of morphological figuresissued from : K. Hirakawa in Bull. Plankton Soc. Japan, 1983, 30 (1). [p.68, Fig.3].
Male: a, habitus (dorsal); b, P5; c, right A1; d, outer lamelliform plate of rightb endopod of P5.


Species Pseudodiaptomus nihonkaiensis - Plate 7 of morphological figuresissued from : K. Hirakawa in Bull. Plankton Soc. Japan, 1983, 30 (1). [p.68, Table 1].
Female & Male: Comparison of the morphological characters in P. nihonkaiensis and P. cornutus Nicholls, 1944.

Compl. Ref.:
Shimode & Shirayama, 2004 (p.607, tab.1, 2); Ohtsuka & al., 2008 (p.115, Table 5);
NZ: 1

Distribution map of Pseudodiaptomus nihonkaiensis by geographical zones
Species Pseudodiaptomus nihonkaiensis - Distribution map 2issued from : H.Y. Soh, H.-L Suh, O.H. Yu & S. Ohtsuka in Hydrobiologia, 2001, 448. [p.214, Fig.9].
Zoogeography of P. poplesia and P. nihonkaiensis in eastern Asia.
Loc:
Japan (Kyushu, Tanabe Bay), S Korea (Dolsan Is., Cheju Is.)
N: 5
Lg.:
(97) F: 1,14; (866) F: 1,08-1,26; M: 0,85-1,05; (922) F: 1,2-1,3; M: 1,1-1,28; {F: 1,08-1,3; M: 0,85-1,28}
Rem.: brackish - marine.
In Ramosus species group (serricaudatus subgroup) after Walter & al. 2006, p.203.
Last update : 28/06/2013
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Razouls C., Desreumaux N., Kouwenberg J. and de Bovée F., 2005-2024. - Biodiversity of Marine Planktonic Copepods (morphology, geographical distribution and biological data). Sorbonne University, CNRS. Available at http://copepodes.obs-banyuls.fr/en [Accessed July 21, 2024]

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