Species Card of Copepod
Calanoida ( Order )
    Arietelloidea ( Superfamily )
        Heterorhabdidae ( Family )
            Heterorhabdus ( Genus )
Heterorhabdus ankylocolus  Park, 2000   (F,M)
Park, 2000 (p.99, figs.F,M, Rem.)
Species Heterorhabdus ankylocolus - Plate 1 of morphological figuresissued from : T. Park in Bull. Scripps Inst. Oceanogr. Univ. California, San Diego, 2000, 31. [p.219, Fig.67].
Female: a, urosome (left side); b, c, d, genital somite (dorsal, left, ventral, respectively).

Male: e, left P5 (endopod omitted), anterior; f, exopod of left P5 (anterior); g, right P5 (distal exopodal segments omitted), anterior; h, right P5 (endopod omitted), posterior; i, exopod of right P5 (anterior); j, distal end of exopod of right P5 (lateral).

Species Heterorhabdus ankylocolus - Plate 2 of morphological figuresHeterorhabdus ankylocolus female:
1 - See key to species groups of Heterorhabdus: ''spinifrons'' Group (p.90, 91).
2 - Forehead with a spiniform process.
3 - Anterior wall of genital proninence with a pair of rounded lobes (Fig.67-c, d).
4 - Genital prominence short of reaching posterior end of somite. Endopod of Mx1 with 3 setae.
5 - Genital prominence without posterior lobes (Fig.67-c).

Species Heterorhabdus ankylocolus - Plate 3 of morphological figuresHeterorhabdus ankylococus male:
1 - See key to species groups of Heterorhabdus: ''spinifrons'' Group (p.90, 91).
2 - Forehead with a spiniform process.
3 - In right P5, basal inner lobe relatively long and somewhat fingerlike, medial projection of 2nd exopodal segment (Fig.67-h) with small terminal spiniform process and relatively well developed distal lobe.
4 - Basal inner lobe of right P5 (Fig.67-g) almost as long as segment, pointing distomediad. Endopod of Mx1 with 3 seta.
5 - 2nd exopodal segment of left P5 (Fig.67-e) with outer spine shorter than conical process. Terminal spine of 3rd exopodal segment of right P5 about 1/3 length of segment (Fig.67-i).
6 - Lateral margin of 3rd exopodal segment of right P5 (Fig.67-h) strongly elbowed about 1/5 length of segment from distal end.

NZ: 4

Distribution map of Heterorhabdus ankylocolus by geographical zones
S Indian (tropical), Malay Archipelago, China Seas (South China Sea), SE Pacif. (equatorial)

Type locality: 17°46'S, 110°19"W.
N: 1
(824) F: 3,24-2,8; M: 2,92-2,72; {F: 2,80-3,24; M: 2,72-2,92}
Rem.: "Spinifrons" Group.
Last update : 06/01/2015
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 Any use of this site for a publication will be mentioned with the following reference :

Razouls C., Desreumaux N., Kouwenberg J. and de Bovée F., 2005-2021. - Biodiversity of Marine Planktonic Copepods (morphology, geographical distribution and biological data). Sorbonne University, CNRS. Available at http://copepodes.obs-banyuls.fr/en [Accessed January 23, 2021]

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