Species Card of Copepod
Monstrilloida ( Order )
    Monstrillidae ( Family )
        Cymbasoma ( Genus )
Cymbasoma longispinosum  (Bourne, 1890)   (F,M)
Syn.: Monstrilla longispinosa Bourne,1890 b (p.575, figs.F);
Thaumaleus longispinosus Giesbrecht, 1892 (p.578, 585, figs.F,M); van Breemen, 1908 a (p.211, figs.F,M); Pesta, 1920 (p.633, fig.F); Rose, 1925 e (p.307); 1926 (p.47); Dakin & Colefax, 1940 (p.117, figs.M); C.B. Wilson, 1950 (p.197); Isaac, 1974 (p.130); 1975 (p.3, 7, 8, figs.F,M); Huys & Boxshall, 1991 (p.164, fig.M); Oliveira Dias, 1996 (p.255);
no Cymbasoma longispinosum : Martin Thompson, 1973 (1976) (p.617, figs.F,M, Rem.: Kerala form)
Ref.:
Sars, 1921 a (p.24, figs.F,M); Rose, 1933 a (p.349, figs.F,M); Dolgopol'skaya, 1948 (p.178, figs.F); Sekiguchi, 1982 (p.26, figs.M); Martin Thompson & Easterson, 1983 (p.179, Rem.); Grygier, 1994 a (p.28, Rem.); Grygier, 1995 a (p.46, 51,70); Suarez-Morales & Escamilla, 1997 (p.545: Rem.); Chihara & Murano, 1997 (p.1002, Pl.234: M); Suarez-Morales & Palomares-Garcia, 1999 (p.197, tab.1); Suarez-Morales, 2000 b (p.680); 2002 (p.95: tab.1); Leite & al., 2010 (p.577, figs.F,M); Vives & Shmeleva, 2010 (p.162, figs.F,M, Rem.); Suarez-Morales, 2011 (p.6, 9, 10, Rem.)
Species Cymbasoma longispinosum - Plate 1 of morphological figuresissued from : R. Huys & G.A. Boxshall in Copepod Evolution, The Ray Society, 1991. [p.164, Fig.2.5.7]. As Thaumaleus longispinosus.
Male: C, A1.


Species Cymbasoma longispinosum - 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.46, Fig.1]. As Thaumaleus longispinosus.
Male: 1, habitus (lateral).


Species Cymbasoma longispinosum - 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.46, Fig.13]. As Thaumaleus longispinosus.
Male: 13, urosome (ventral)


Species Cymbasoma longispinosum - 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.46, Fig.23]. As Thaumaleus longispinosus.
Male: 23, A1 (ventral view).


Species Cymbasoma longispinosum - 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.46, Fig.4]. As Thaumaleus longispinosus.
Female: 4, habitus (lateral).


Species Cymbasoma longispinosum - 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.46, Fig.6]. As Thaumaleus longispinosus.
Female: 6, habitus (dorsal).


Species Cymbasoma longispinosum - 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.46, Fig.12]. As Thaumaleus longispinosus.
Female: 12, urosome (ventral).


Species Cymbasoma longispinosum - 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.46, Fig.30]. As Thaumaleus longispinosus.
Female: 30, A1 (ventral view).


Species Cymbasoma longispinosum - Plate 9 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.46, Fig.38]. As Thaumaleus longispinosus.
Female: 38, P5.


Species Cymbasoma longispinosum - Plate 10 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.46, Fig.42]. As Thaumaleus longispinosus.
Female: 42, P3.


Species Cymbasoma longispinosum - Plate 11 of morphological figuresissued from : P.K. Martin Thompson in J. mar. biol. Ass. India, 1973 (1976), 15 (2). [p.618, Fig.1].
Female (from coastal waters off Vizhinjan, Kerala, SW India): a-b, habitus (dorsal and lateral, respectively); c, cephalothorax (anterior region enlarged); d, anal segment and caudal rami (enlarged); e, abdomen (lateral, enlarged); f, A1; g, P1; h, P2; i, P5.
Nota: Ratio of cephalothorax: rest of body 65.37 : 34.63. Proportional lengths of various segments of body (caudal rami included): 65.37; 8.29; 6.83; 5.85; 4.88; 3.90; 2.44; 2.44 = 100. A1 4-segmented, attains 1/4 of cephalothorax, last segment longest, but not as long as combined length of first three segments, proportional lengths 17.0; 19.3; 16.0; 47.7 = 100.

Male: j-k, habitus (dorsal and lateral, respectively); l, abdomen and caudal rami (dorsal); m, copulatory organ with seminal vesicle; n, A1; o, P1; p, P3.
Nota: Posterolateral corners of cephalothorax slightly bulged out bears a pair of minute nerve hooks on each side. Ratio of cephalothorax : rest of body 44.78 : 55.22. Abdomen 3-segmented and hardly 1/7 of total length. Genital segment (Abd 2) has a blunty pointed well developed copulatory organ consisting of a pair of long and diverging lobes situated at postero-lateral corners of segment. Caudal rami as in female, but with 4 plumose setae of equal length. Proportional lengths of various segments of body (caudal rami included): 44.78; 10.45; 9.45; 9.45; 6.97; 5.47; 3.48; 4.98; 4.97 = 100. A1 5-segmented, comparatively much longer than that of female; first three segments being lamellary; last segment being thinner and moveably articulated to fourth; proportional lengths 14.93; 18.41; 13.93; 27.36; 25.37 = 100. Swimming legs as in female. P5 absent.


Species Cymbasoma longispinosum - Plate 12 of morphological figuresissued from : P.K. Martin Thompson in J. mar. biol. Ass. India, 1973 (1976), 15 (2). [p.619, Table.1].
The setae and spine on the hree segments of exopodite and endopodite of swimming legs.


Species Cymbasoma longispinosum - Plate 13 of morphological figuresissued from : P.K. Martin Thompson in J. mar. biol. Ass. India, 1973 (1976), 15 (2). [p.620].
Characters between Sars' species from NE Atlantic and Kerala form (India).


Species Cymbasoma longispinosum - Plate 14 of morphological figuresissued from : G.O. Sars in An Account of the Crustacea of Norway, with short descriptions and figures of all the species, 1921a, 8. [Pl. XIII].
Female and Male (from Mediterranean Sea: off Sardinia).

Specific characters of Female: Cephalic segment only very slightly dilated in the middle, and considerably exceeding half the length of the body.
Eye well developed.
A1 4-segmented, short and stout, scarcely exceeding in length1/4 of the cephalic segment ; the last segment about the length of the other 3 combined and gradually narrowed distally, some of its setae ramified.
Oral tubule located far in fronf, at only at short distance from the frontal part of the head.
Natatory legs with the terminal segment of exopod unusually short, scarcely longer than the middle one. P5 provided at the obtusely truncated extremity with 3 plumose setae, the innermost of which is a little shorter than the other 2 ; inner lobe well defined, triangular, and extending at right angle to the axis of the leg.
Abdomen short, not attaining the length of the 2 preceeding segments combined.
Genital segment about the size of the last trunkal segmend and, in dorsal view, of a subquadrate form, its ventral face considerably protuberant.
Ovigerous spines of an extraordinary length, attaining nearly the double length of the body, and confluent at the base for some distance, distal part much narrower than the proximal one.
Caudal rami very small, scarcely longer than they are broad, each only provided with 3 thickish setae of equal length.

Specific characters of Male: A1 5-segmented, the 3 middle ones lamellary expanded inside and armed with several short spines in addition to the setae, last segment small, very movably articulated to the preceding one.
Natatory legs as in the female ; P5 wholly absent.
Genital segment with the copulative appendage divided at the end into 2 short diverging lobes.
Caudal rami, each provided with 4 setae of nearly equal length (instead 3 setae for the female).

Compl. Ref.:
C.B. Wilson, 1950 (p.197); Dowidar & El-Maghraby, 1970 (p.268) ; Hure & Krsinic, 1998 (p.98, 105); Dias & Bonecker, 2007 (p.270, 272, fig.3, tab.II); Oliveira Dias & Costa Bonecker, 2007 (p.282: Rem); Oliveira Dias & al., 2008 (p.248, tab.1)
NZ: 10

Distribution map of Cymbasoma longispinosum by geographical zones
Loc:
Baie des Chaleurs, Is. Shetland, Norvège, Mer du Nord, Manche, Guinée Portugaise, Brésil (Natal-Portal do Sul, Bahia, Amazon estuary), Portugal, Médit. (Alger, Etang de Thau, Marseille, Naples, Afr. N, Adriatique N, Liban, Alexandrie), Mer Noire, G. Arabe, Inde W (Bombay, ? Vizhinjam), Philippines, Viet-Nam, Japon, Australie (Nouvelle-Galles du Sud)
N: 19
Lg.:
(46) F: 3,1-2,6; M: 1,8; (104) M: 1,8; (277) F: 2,8; 2,5; (449) F: 3,1-2,6; M: 1,8; (466) F: 2,55-2,01; M: 1,57-1,33; (663) F: 3,16-2,6; M: 2,3; (723) M: 1,5; (782) F: 2,6; (783) F: 3,18-1,9; M: 1,72-1,21; (995) F: 1,96-2,06; M: 1,45*; (997) F: 1,28-2,01; M: 0,68*; (1056)* F: 1,80-2,48; M: 1,00-1,53; {F: 1,80-3,18; M: 1,00-2,30}
*: caudal rami excluded.
Rem.: For Suarrez-Morales & Escamilla (1997, p.545 & suiv.) this species is closely related to C. chelemense.
For Suarez-Morales (2011, p.6) this nominal species was presumed to have a cosmopolitan distribution. It is currently known to contain five species that have subtle differences and are distributed in distinct geographical areas.
Last update : 03/09/2014
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