Species Card of Copepod
Calanoida ( Order )
    Arietelloidea ( Superfamily )
        Heterorhabdidae ( Family )
            Heterorhabdus ( Genus )
Heterorhabdus quadrilobus  Park, 2000   (F,M)
Ref.:
Park, 2000 (p.98, figs.F,M)
Species Heterorhabdus quadrilobus - Plate 1 of morphological figuresissued from : T. Park in Bull. Scripps Inst. Oceanogr. Univ. California, San Diego, 2000, 31. [p.217, Fig.65].
Female: a, b, urosome (left, dorsal, respectively); c, d, e, genital somite (left, right, ventral, respectively).


Species Heterorhabdus quadrilobus - Plate 2 of morphological figuresissued from : T. Park in Bull. Scripps Inst. Oceanogr. Univ. California, San Diego, 2000, 31. [p.218, Fig.66].
Female: a, right Mxp (anterior).

Male: b, P5 (anterior); c, basipod of right P5 (anterior); d, left P5 (endopod omitted), anterior; e, exopod of right P5 (posterior); f, distal end of exopod of right P5 (lateral).


Species Heterorhabdus quadrilobus - Plate 3 of morphological figuresHeterorhabdus quadrilobus 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.65-a, e).
4 - Genital prominence short of reaching posterior end of somite (Fig.65-a). Endopod of Mx1 with 3 setae.
5 - Genital prominence with posterior lobes (Fig.65-c).


Species Heterorhabdus quadrilobus - Plate 4 of morphological figuresHeterorhabdus quadrilobus male:
1 - See key to species groups of Heterorhabdus: ''spinifrons'' Group.
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.66-b, e) with small terminal spiniform process and relatively well developed distal lobe.
4 - Basal inner lobe of right P5 (Fig.66-b) almost as long as segment, pointing distomediad. Endopod of Mx1 with 3 seta.
5 - 2nd exopodal segment of left P5 (Fig.66-d) with outer spine shorter than conical process. Terminal spine of 3rd exopodal segment of right P5 about 1/3 length of segment (Fig.66-b).
6 - Lateral margin of 3rd exopodal segment of right P5 (Fig.66-e) only moderately elbowed elbowed about 1/5 length of segment from distal end.
7 - Basal inner lobe of right P5 (Fig.66-c) with a deep notch on lateral margin; in 3rd exopodal segment of right P5 (Fig.66-e), lateral margin moderaztely elbowed about 1/5 length of segment from distal end, and distal lobe elongate (Fig.66-f). In 2nd exopodal segment of left P5 (Fig.66-d), outer spine distinctly shorter than conical process.

Compl. Ref.:
Park & Ferrari, 2009 (p.143, Table 8, biogeography)
NZ: 4

Distribution map of Heterorhabdus quadrilobus by geographical zones
Loc:
Pacif. (equatorial central: E-W), off San Diego, Chile

Type locality: 62,27°N, 116°16'W.
N: 1
Lg.:
(824) F: 3,84-3,2; M: 3,68-3,04; {F: 3,20-3,84; M: 3,04-3,68}
Rem.: "Spinifrons" Group.
Last update : 06/01/2015
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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 April 24, 2024]

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