Species Card of Copepod
Calanoida ( Order )
    Calanoidea ( Superfamily )
        Paracalanidae ( Family )
            Parvocalanus ( Genus )
Parvocalanus arabiensis  (Kesarkar & Anil, 2010)   (F)
Syn.: Paracalanus arabiensis : Kesarkar & Anil, 2010 (p.399, figs.F, Table 2)
Moon S.Y. & al.., 22014, Table 1, Rem.: p.43-44, p.45: F)
Species Parvocalanus arabiensis - Plate 1 of morphological figuresissued from : K.S. Kesarkar & A.C. Anil in J. Mar. Biol. Ass. U.K., 2010, 90 (2). [p.400, Fig.2]. As Paracalanus arabiensis.
Female (from Mandovi and Zuari estuary, Goa): A-B, habitus (dorsal and lateral, respectively); C, forehead with rostrum (lateral); D, rostrum (dorsal).
Nota: Head and 1st thoracic segment fused, 4th and 5th with slight demarcation.

Species Parvocalanus arabiensis - Plate 2 of morphological figuresissued from : K.S. Kesarkar & A.C. Anil in J. Mar. Biol. Ass. U.K., 2010, 90 (2). [p.401, Fig.3]. As Paracalanus arabiensis.
Female: A, A1; B, A2; C, Md; D, Mx1; E, Mx2; F, Mxp.
Nota: A1 25-segmented (segments 1 [ancestral segment I] and 2 [ancestral segments II-IV] partially fused, segments 3 [ancestral segment V] to 24 [ancestral segment XXVI] separate, apical segment 25 [ancestral segments XXVII-XXVIII] double, segments 13-24 bear small spines; extending to posterior margin of genital segment.
A2 coxa and basis clearly separate; exopod 7-segmented slightly longer than endopod.
Md with cutting edge of gnathobase bearing 9 cuspidate teeth and 1 seta; endopod 2-segmented; exopod 5-segmented.
Mx1: praecoxal arthrite with 13 setae; coxa with 3 setae on endite; epipodite with 8 setae; basis with 4 setae on proximal endite and 5 setae on distal endite; basal exite with 2 setae; exopod bearing 11 lateral setae; endopod 3-segmented, 1st to 3rd segments with 3, 4 and 7 setae respectively.
Mx2: praecoxa bearing 2endites, proximal endite with 6 setae, distal with 3 setae; coxa with 2 endites each armed with 3 setae; basis with 1 endite bearing 4 setae and 1 seta laterally; endopod 3-segmented with setal formula 1, 1, 2.
Mxp: praecoxa and coxa apparently separate; praecoxa with 1 seta; coxa bearing 2, 3 and 4 setae representing endites; basis bearing 3 setae; endopod 6-segmented, 1st to 6th segments bearing 2, 4, 4, 3 + 1, and 4 setae respectively.

Species Parvocalanus arabiensis - Plate 3 of morphological figuresissued from : K.S. Kesarkar & A.C. Anil in J. Mar. Biol. Ass. U.K., 2010, 90 (2). [p.402, Fig.4]. As Paracalanus arabiensis.
Female: A-D, P1 to P5, respectively; E, P5.
Nota: P5 2-segmented, symmetrical; 2nd segment bearing 2 terminal spines of unequal length, inner spine twice the length of outer one with a row of 6 small teeth along its edge, 2 small, stiff spines of equal length protrude in between the terminal spines.

Species Parvocalanus arabiensis - Plate 4 of morphological figuresissued from : K.S. Kesarkar & A.C. Anil in J. mar. Biol. Ass. UK, 2010, 90 (2); [p.403, Table 2]. As Paracalanus arabiensis.
Characteristics of females.

NZ: 1

Distribution map of Parvocalanus arabiensis by geographical zones
Arabian Sea (Mandovi & Zuari estuaries)
N: 2
(1046) F: 0,55-0,60; {F: 0,55-0,60}
Rem.: estuaries.
Moon, Youn & Soh (2014) state that this species shares the generic characteristics of Parvocalanus (see Andronov 1970; Hiromi 1987; Boxshall and Halsey 2004) and that the differences are not relevant enough to put this Arabian taxon in Paracalanus. The authors propose: Parvocalanus arabiensis (Kesarkar & Anil, 2010), comb. n. supported by a Key to the genera of Paracalanidae (emended from Boxshall and Halsey, 2004).
Last update : 07/04/2018
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Razouls C., Desreumaux N., Kouwenberg J. and de Bovée F., 2005-2022. - Biodiversity of Marine Planktonic Copepods (morphology, geographical distribution and biological data). Sorbonne University, CNRS. Available at http://copepodes.obs-banyuls.fr/en [Accessed July 02, 2022]

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