Species Card of Copepod
Calanoida ( Order )
    Diaptomoidea ( Superfamily )
        Pseudodiaptomidae ( Family )
            Pseudodiaptomus ( Genus )
Pseudodiaptomus bispinosus  Walter, 1984   (F,M)
Walter, 1984 (p.384, figs.F,M; Rem.); 1986 (p.132); 1986 a (p.503); 1987 (p.367); Walter & al., 2006 (p.208, figs.F,M)
Species Pseudodiaptomus bispinosus - Plate 1 of morphological figuresissued from : T.C. Walter in Proc. Biol . Soc. Wash., 1984, 97 (2). [p.

Species Pseudodiaptomus bispinosus - Plate 2 of morphological figuresissued from : T.C. Walter, S. Ohtsuka & L.V. Castillo in Proc. Biol. Soc. Washington, 2006, 119 (2). [p.209, Fig.4].
Female (from panay Island, Philippines): A, prosomal end and urosome with egg sac and dotted line indicating ventrally attached spermatophore (dorsal); B, genital area (ventral); C, P5 (anterior);

Male: D, prosomal end and urosome (dorsal); E, P5 (posterior), arrowed structure shows detail of the tricuspate endopod); F, P5 (anterior; arrowed structure shows detail of the proximal process on left 2nd exopod).

Compl. Ref.:
Maiphae & Sa-ardrit, 2011 (p.641, Table 2, 3, Rem.)
NZ: 1

Distribution map of Pseudodiaptomus bispinosus by geographical zones
G. of Thailand, Philippines (Padre Burgos, Fort San Pedro, Panay Island)
N: 3
(802) F: 1,15-1,3; M: 0,94-1; (1058) F: 1,15-1,22; M: 0,85-0,98; {F: 1,15-1,30; M: 0,85-0,98}
Rem.: Coral reef.
This species is most similar to P. incisus Shen & Lee, 1963.
For Walter & al. (2006, p.210) the specimens from Panay Island vary slightly from the original description by Walter (1984) in a few minor characters: 1- female P5 basis and 2nd exopodal segments bearing surface spinules, rather than setules; 2- male P5 coxae and intercoxal sclerite almost completely fused, lacking small pair of distomedial protuberances; 3- right 2nd exopodal segment of male P5 with different spinulation pattern. These differences fall within intraspecific variability.
In Hyalinus species group (trihamatus subgroup) after Walter & al. 2006, p.203.
Last update : 18/11/2022
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Razouls C., Desreumaux N., Kouwenberg J. and de Bovée F., 2005-2023. - Biodiversity of Marine Planktonic Copepods (morphology, geographical distribution and biological data). Sorbonne University, CNRS. Available at http://copepodes.obs-banyuls.fr/en [Accessed June 05, 2023]

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Marine Planktonic Copepods

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