Species Card of Copepod
Calanoida ( Order )
    Clausocalanoidea ( Superfamily )
        Diaixidae ( Family )
            Diaixis ( Genus )
Diaixis pygmaea  (T. Scott, 1896)   (F,M)
Syn.: Scolecithrix hibernica A. Scott, 1896; 1899 i; Giesbrecht & Schmeil, 1898 (p.47);
Diaixis durani : Corral Estrada, 1972 a (p.51, Descr.M, figs.M); Andronov, 1979 (p.95, Descr.F, figs.F,M); Andronov & Maigret, 1980 (p.71, Table 2); Vives, 1982 (p.292); Valdés & al., 1990 (tab.2); Bradford & al., 1983 (p.123); Valdés & al., 2007 (p.104: tab.1); Bode & al., 2003 (p.85, Table 1, abundance);
Ref.:
van Breemen, 1908 a (p.82, figs.F,M); Pesta, 1920 (p.518); Früchtl, 1924 (p.220, Rem.: parasite); Rose, 1933 a (p.160, figs.F,M); Bradford & al., 1983 (p.123); Vives & Shmeleva, 2007 (p.641, figs.F,M, Rem.)
Species Diaixis pygmaea - Plate 1 of morphological figuresissued from : M. Rose in Faune de France, 1933, 26. [p.160, Fig.178]. After Sars, 1925.
Female: habitus.
Nota: head and Th1 fused, Th4 and Th5 separate. Postero-lateral corners of Th5 acute.

Male: P5.


Species Diaixis pygmaea - Plate 2 of morphological figuresissued from : V.N. Andronov in Arthropoda Selecta, 2002, 11 (1). [p.25, Figs.72-81]. After Andronov, 1979.
Female: 72-73, habitus (dorsal and lateral, respectively); 74, rostrum; 75, segment thoracic 5 (left lateral side); 76, urosome (ventral); 77, genital segment and urosomal segment 2 (left lateral side); 78, distal end of Mx2.

Male: 79, P5; 80-81, distal end of left P5 (different views).


Species Diaixis pygmaea - Plate 3 of morphological figuresissued from : V.N. Andronov in Byull. Mosk. Obshch. Ispyt. Prir. , Otdel Biol., n. ser., 1979, 84 (4). [p.96, Figs.14-28]. As Diaixis durani.
Female (from W coast Africa): 14, 16, habitus (dorsal and lateral, respectively); 15, rostrum; 17-20, P1 to P4; 21, last thoracic segment (left lateral side); 22, genital segment and urosomal segment 2 (left lateral side); 23, urosome (ventral); 24, A2; 25, Mx1; 26, distal segments of Mx2; 27, Mxp; 28, Md.

Compl. Ref.:
Rose, 1925 (p.152); Rose & Vaissière, 1952 a (p.120); Mazza, 1966 (p.71); Paulmier, 1971 (p.168); Apostolopoulou, 1972 (p.328, 352); Comaschi Scaramuzza, 1978 (p.17); Kovalev & Shmeleva, 1982 (p.84); Vives, 1982 (p.292); Regner, 1985 (p.11, Rem.: p.32); Comaschi Scaramuzza, 1987 (tab.1); Pancucci-Papadopoulou & al., 1990 (p.199); Ragosta & al., 1995 (Appendix A); Hajderi, 1995 (p.542); Hure & Krsinic, 1998 (p.53, 101); Siokou-Frangou, 1999 (p.476); Holmes, 2001 (p.54); Beaugrand & al., 2002 (p.179, figs.5, 6); Vukanic, 2003 (139, tab.1); Isari & al., 2006 (p.241, tab.II); Valdés & al., 2007 (p.104: tab.1); Cabal & al., 2008 (289, Table 1); Brugnano & al., 2010 (p.312, Table 3); Mazzocchi & Di Capua, 2010 (p.425);
NZ: 4

Distribution map of Diaixis pygmaea by geographical zones
Loc:
Angola, Congo, Maroc-Mauritanie, off Madère, off Coruña, Espagne NW, G. de Gascogne (Belon estuary), Ecosse, Irlande, Médit. (Alger, Mer Catalane, G. du Lion (Etang de Thau), Ligurian Sea, Tyrrhénienne, Adriatique , Venise, G. of Manfredonia, Mer Egée, bassin Levantin, Mer de Marmara),
N: 31
Lg.:
(307) F,M: 0,95; (379) F: 0,86-0,74; M: 0,74-0,68; (380) M: 0,76; (449) F: 0,95; (881) F: 0,74-0,95; M: 0,68-0,74; {F: 0,74-0,95; M: 0,68-0,95}
Rem.: hyperbenthic. Sampling depth: 0-300 m.
A doubt subsists concerning the validity or the synonymy from Diaixis durani; Othman & Greenwood (1994, p.988) the species is considered as valid.
Last update : 10/12/2012
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