Species Card of Copepod
Calanoida ( Order )
    Diaptomoidea ( Superfamily )
        Pontellidae ( Family )
            Labidocera ( Genus )
Labidocera brunescens  (Czerniavski, 1868)   (F,M)
Syn.: Pontella brunescens Czerniavski, 1868
Ref.:
Giesbrecht, 1892 (p.445, 459, 773, figs.F,M); Giesbrecht & Schmeil, 1898 (p.136, Rem. F,M); Pesta, 1920 (p.540); Sars, 1925 (p.354); Rose, 1933 a (p.262, figs.F,M); Vilela, 1965 (p.10, figs.F); Silas & Pillai, 1976 (p.774); Sazhina, 1985 (p.69, figs.N); Avancini & al., 2006 (p.105, Pl. 74, figs.F,M, Rem.);Vives & Shmeleva, 2007 (p.498, figs.F,M, Rem.)
Species Labidocera brunescens - Plate 1 of morphological figuresIssued from : W. Giesbrecht in Systematik und Faunistik der Pelagischen Copepoden des Golfes von Neapel und der angrenzenden Meeres-Abschnitte. – Fauna Flora Golf. Neapel, 1892. Atlas von 54 Tafeln. [Taf.41, Fig.2].
Female: 2, habitus (dorsal).


Species Labidocera brunescens - Plate 2 of morphological figuresIssued from : W. Giesbrecht in Systematik und Faunistik der Pelagischen Copepoden des Golfes von Neapel und der angrenzenden Meeres-Abschnitte. – Fauna Flora Golf. Neapel, 1892. Atlas von 54 Tafeln. [Taf.41, Fig.25];
Female: 25, Th5 and urosome (ventral).


Species Labidocera brunescens - Plate 3 of morphological figuresIssued from : W. Giesbrecht in Systematik und Faunistik der Pelagischen Copepoden des Golfes von Neapel und der angrenzenden Meeres-Abschnitte. – Fauna Flora Golf. Neapel, 1892. Atlas von 54 Tafeln. [Taf.41, Fig.23].
Female: 23, Th5 and urosome (lateral)


Species Labidocera brunescens - Plate 4 of morphological figuresIssued from : W. Giesbrecht in Systematik und Faunistik der Pelagischen Copepoden des Golfes von Neapel und der angrenzenden Meeres-Abschnitte. – Fauna Flora Golf. Neapel, 1892. Atlas von 54 Tafeln. [Taf.23, Fig.29].
Female: 29, P5 (anterior view).


Species Labidocera brunescens - Plate 5 of morphological figuresIssued from : W. Giesbrecht in Systematik und Faunistik der Pelagischen Copepoden des Golfes von Neapel und der angrenzenden Meeres-Abschnitte. – Fauna Flora Golf. Neapel, 1892. Atlas von 54 Tafeln. [Taf.23, Fig.7].
Female: 7, A1 (ventral view).


Species Labidocera brunescens - Plate 6 of morphological figuresIssued from : W. Giesbrecht in Systematik und Faunistik der Pelagischen Copepoden des Golfes von Neapel und der angrenzenden Meeres-Abschnitte. – Fauna Flora Golf. Neapel, 1892. Atlas von 54 Tafeln. [Taf.23, Fig.4].
Male: 4, right A1 (distal part).


Species Labidocera brunescens - Plate 7 of morphological figuresIssued from : W. Giesbrecht in Systematik und Faunistik der Pelagischen Copepoden des Golfes von Neapel und der angrenzenden Meeres-Abschnitte. – Fauna Flora Golf. Neapel, 1892. Atlas von 54 Tafeln. [Taf.41, Fig.24].
Male: 24, Th5 and urosome (dorsal).


Species Labidocera brunescens - Plate 8 of morphological figuresIssued from : W. Giesbrecht in Systematik und Faunistik der Pelagischen Copepoden des Golfes von Neapel und der angrenzenden Meeres-Abschnitte. – Fauna Flora Golf. Neapel, 1892. Atlas von 54 Tafeln. [Taf.23, Figs.42, 43].
Male: 42, left P5 (posterior view).; 43, right P5 (posterior view). Ri = endopod; Re = exopod; B = basipod.

Compl. Ref.:
Massuti Alzamora, 1942 (p.98, Rem.); Sewell, 1948 (p.423, 472); Demir, 1959 (p.176); Mazza, 1966 (p.72); Dowidar & El-Maghraby, 1970 (p.268); Porumb, 1980 (p.168); Kovalev & Shmeleva, 1982 (p.85); Comaschi Scaramuzza, 1987 (tab.1); Hure & Krsinic, 1998 (p.103); Mauchline, 1998 (tab.46); Zerouali & Melhaoui, 2002 (p.91, Tableau I); Vukanic, 2003 (p.139, tab.1); Kovalev, 2003 (p.47); Zagorodnyaya & al., 2003 (p.52); Daly Yahia & al., 2004 (p.366, fig.4); Mazzocchi & Di Capua, 2010 (p.427); Aubry & al., 2012 (p.125, fig.8 b, interannual variation); Gubanova & al., 2013 (in press, Rem.: p.7, Table 4); Belmonte & al., 2013 (p.222, Table 2, abundance vs stations); Zaafa & al., 2014 (p.67, Table I, occurrence); Pansera & al., 2014 (p.221, Table 2, abundance); Ben Ltaief & al., 2017 (p.1, Table III, Summer relative abundance); El Arraj & al., 2017 (p.272, table 2); Belmonte, 2018 (p.273, Table I: Italian zones)
NZ: 2

Distribution map of Labidocera brunescens by geographical zones
Species Labidocera brunescens - Distribution map 3
Chart of 1996
Loc:
off NE Azores, Morocco, Portugal, off W Tangier, Medit. (M'Diq, Alboran Sea, NW Basin, Thau Lagoon, Ligurian Sea, Naples, Lake Faro (Sicily), Strait of Messina, G. of Gabes, Taranto Harbour, Adriatic Sea, Venezzia, Aegean Sea, Lebanon, Alexandria, Marmara Sea, Black Sea (rare), [Australia (New South Wales) (in Dakin & Colefax, 1933, p.206)]
N: 29
Lg.:
(46) F: 2,05-2; M: 1,7-1,65; (373) F: 2,4; (449) F: 2,05-2; M: 1,7-1,65; {F: 2,00-2,40; M: 1,65-1,70}
Rem.: This species could be an example of exile to the Azores by the profound mediterranean current.
Dakin & Colefax report the presence of this species in the Indian Ocean (reference neither recovered by Sewell nor by Razouls), this observation requires confirmation, like the one from Australia.
Diagnosis for L. brunescens in the 'darwinii' species group after Prusova & Al-Yamani (2014, p.1165) :
Females:
- 1: Urosome of 3 somites.
- 2: Genital somite asymmetrical, caudal rami of approximately equal length.
- 3: Caudal rami symmetrical, or roughly symmetrical, separate from anal somite.
- 4: Exopod of nearly symmetrical P5 with 1 terminal point, genital pore ventral.
Last update : 24/10/2022
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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 March 19, 2024]

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