Species Card of Copepod
Calanoida ( Order )
    Diaptomoidea ( Superfamily )
        Acartiidae ( Family )
            Acartia ( Genus )
Acartia mollicula  Pavlova & Shmeleva, 2010   (F, stage 5 M)
Ref.:
Pavlova & Shmeleva, 2010 (p. e-2, figs.F, stage 5 M)
Species Acartia mollicula - Plate 1 of morphological figuresissued from : E.V. Pavlova & A.A. Shmeleva in Vestnik zoologii, 2010, 44 (2). [p. e-2, Fig.1].
Female (from martyn Bay: Black Sea): 1, 3, habitus (dorsal and lateral, respectively); 2, urosome (dorsal); 4, last thoracic segment and urosome (lateral); 5, rostrum (dorsal view); 6, A1; 7, A2; 8, Md.
Nota: Rostrum small, without rostral filaments.
:
Prosome to urosome ratio 76.0 : 24.0.
A1 19-segmented, almost reaching posterior margin of genital somite ; segment 4 with 1 spine.
A2 with distinctly separated coxa and basis bearing 1 seta ; basis and 1st endopodal segment fused (forming elongated allobasis) bearing 6 proximal setae and 1 distal seta along inner margin ; 2nd endopodal segment elongated, with 7 setae ; 3rd endopodal segment short, with 7 setae . Exopod short, 4-segmented ; setation formula 1, 2, 2, 3.
Md : coxa with well developed gnathobase. Basis bearing 1 seta covered with spinules ; endopod 2-segmented, with 2 and 9 setae on the 1st and 2nd segments, respectively. Exopod 5-segmented, with setation formula 1, 1, 1, 1, 2 setae.
Urosome 3-segmented, without any tooth and spines onthe distal margin.
Genital segment nearly as long as wide, symmetrical in dorsal view and ventral surface, without processes, with lateral swellings at both sides.
Caudal rami 2.5 times as long as wide.


Species Acartia mollicula - Plate 2 of morphological figuresissued from : E.V. Pavlova & A.A. Shmeleva in Vestnik zoologii, 2010, 44 (2). [p. e-3, Fig.2].
Female: 1, Mx1; 2, Mx2; 3, Mxp; 4-7, P1 to P4, respectively; 8, P5.
Nota : Mx1 : praecoxa and coxa incompletely fused ; praecoxal segment with 9 setae ; coxa with endite bearing 3 setae ; epipodite with 9 setae ; basis with 1 inner seta and 1 outer seta ; endopod absent ; exopod bearing 7 setae furnished with hairs along inner margin.
Mx2 : praecoxa and coxa with 2 endites and 14 setae ; with formula 5, 2, 3, 2, 2.
Mxp comprising robust syncoxa and basis of 2 segments of 2-segmented endopod ; syncoxa with setation formula 0, 2, 2, 1 ; basis bearing 1 short seta ; the 1st and 2nd endopodal segments having 3 and 2 short setae.
P5 3-segmented (including one distal segment of basipod) and symmetrical, without large spine. Proximal and distal segments without setae on posterior surface. Distal segment slightly longer than preceeding. Single lateral seta very long, 10 times longer than spine.


Species Acartia mollicula - Plate 3 of morphological figuresissued from : E.V. Pavlova & A.A. Shmeleva in Vestnik zoologii, 2010, 44 (2). [p. e-4, Table 1].
Female: Setae formula of the armature of swimming legs P1 to P4.
Number of setae from outer to inner segment.


Species Acartia mollicula - Plate 4 of morphological figuresissued from : E.V. Pavlova & A.A. Shmeleva in Vestnik zoologii, 2010, 44 (2). [p. e-5, Table 2].
Female: Dimensions and characters of female..


Species Acartia mollicula - Plate 5 of morphological figuresissued from : E.V. Pavlova & A.A. Shmeleva in Vestnik zoologii, 2010, 44 (2). [p. e-4, Fig.3].
Male stage V: 1, 3, habitus (dorsal and lateral, respectively); 2, urosome (dorsal); 4, urosome (lateral, left side); 5, right A1; 6, P5.
Nota : Rostrum very small.
Right A1 not geniculate.
4th urosomal somite longer than 3rd.
Distal segment of with single small spine.P5
Caudal rami symmetrical, about 3 times as long as wide, with straight inner margins ; caudal setae as in females.

Compl. Ref.:
Shmeleva & al., 2008 (p.31, Table 1); Gubanova & al., 2013 (in press, Rem.: p.6, Table 3)
NZ: 2

Distribution map of Acartia mollicula by geographical zones
Loc:
Black Sea (Martyn Bay, Black River estuary), Marmara Sea, Levantine Sea, Red Sea.
N: 3
Lg.:
(1045) F: 0,575-0,700; M stage V: 0,600; {F: 0,575-0,700}
Rem.: coastal.
For Pavlova & Shmeleva (2010, p.e-5) female somewhat resembles A. clausi (the ‘’small’’ form, by D.A. Potemkina, 1940) and A. margalefi Alcaraz, 1976 in the appearance and dark color, differing by the presence of posterodorsal spines on the 2nd urosomal segment. Their size and leg structure are also different (See Table 1).
For Gubanova & al. (2013, p.6) the validity of this species is questionable.
Last update : 02/02/2015
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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 June 13, 2021]

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