Species Card of Copepod
Cyclopoida ( Order )
    Oithonidae ( Family )
        Oithona ( Genus )
Oithona sp.  Al-Yamani & Prusova, 2003   (F,M)
Ref.:
Al-Yamani & Prusova, 2003 (p.107, figs.F,M); Al-Yamani & al., 2011 (p.96, 102, figs.F,M)
Species Oithona sp. - Plate 1 of morphological figuresissued from : F.Y. Al-Yamani & I. Prusova in Common Copepods Northwestern Arabian Gulf : Identification Guide. Kuwait Institute for Scientific Research, 2003. [p.108, Fig.40].
Female: A, habitus (dorsal); B, urosome (dorsal); C, forehead (lateral); D, Md (mandibular palp); E, A2; F, P1; G, P2; H, P3; I, P4.

Nota : Prosome length 1.7 times width, 1.6 times urosome .
Forehead truncates anteriorly in dorsal view, in lateral view bent ventrally into blunt rostrum slightly acute anteroventrally. A1 short, , 0.7 times prosome.
Coxa and basis fused, with 1 inner seta near on distal end and 1 short small outer seta.
Basis of Md with 1 strong spinulose spine on distal end, and 1 inner and 1 outer marginal setae ; endopod small, oblong, with 5 setae.
Exopodal segments of P1-P4 with 1.1.3, 1.1.3, 1.1.3, 1.1.3 outer marginal spines ; proportional lengths of terminal spines to exopod 0.5, 0.5, 0.6, 0.6.
P5 with bifurcate lateral process bearing 1 seta on each branch.
Outer margin of caudal rami with lateral seta not extending end.


Species Oithona sp. - Plate 2 of morphological figuresissued from : F.Y. Al-Yamani & I. Prusova in Common Copepods Northwestern Arabian Gulf : Identification Guide. Kuwait Institute for Scientific Research, 2003. [p.109, Fig.41].
Male: J, habitus (dorsal); K, idem (lateral left side); L, A2; M, Md (mandibular palp).

Nota : Prosome length 1.8 times width, 1.5 times urosome.
Forehead broad truncated anteriorly in dorsal view, in lateral view bent ventrally into blunt ostrum, a little acute anteroventrally.
A2, Md, P1-P5 as in female.


Species Oithona sp. - Plate 3 of morphological figuresissued from : Y. Al-Yamani, V. Skryabin, A. Gubanova, S. khvorov & I. Prusova in Marine Zooplankton Practical Guide for the Northwestern Arabian Gulf, 2, 2011. [p.103, Fig.246];
Female (from Kuwait): a-b, habitus (dorsal and lateral, respectively).


Species Oithona sp. - Plate 4 of morphological figuresissued from : Y. Al-Yamani, V. Skryabin, A. Gubanova, S. khvorov & I. Prusova in Marine Zooplankton Practical Guide for the Northwestern Arabian Gulf, 2, 2011. [p.103, Fig.247].
Male: habitus (dorsal).

NZ: 1

Distribution map of Oithona sp. by geographical zones
Loc:
Arabian Gulf (Kuwait)
N: 1
Lg.:
(937) F: 0,47-0,54; M: 0,50-0,53; {F: 0,47-0,54; M: 0,50-0,53}
Rem.: For Al-Yamani & Prusova the specimens, both females and males, are very similar to O. simplex Farran,1913 in a body and rostrum shape, Md and P1-P4 armature. Present specimens are distinguished from O. simplex by their bigger size, proportional lengths of prosome and urosome and in basipod 1 of A2 with 1 short small seta on outer margin both in female and in male.
Last update : 26/01/2015
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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 May 25, 2024]

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