Fiche d'espèce de Copépode
Calanoida ( Ordre )
    Arietelloidea ( Superfamille )
        Nullosetigeridae ( Famille )
            Nullosetigera ( Genre )
Nullosetigera mutica  (Sars, 1907)   (F,M)
Syn.: Phyllopus muticus Sars, 1907 a (p.26, Rem.F); 1925 (p.345, figs.F); Sewell, 1947 (p.237, Descr.M, figs.M); 1948 (p.331, 505, 522, 528, 533); C.B. Wilson, 1950, p.289, fig.F); Grice, 1963 a (p.496); Owre & Foyo, 1967 (p.91, figs.F); Grice & Hulsemann, 1967 (p.19, 38, figs.F); Stephen & Rao, 1980 (p.239, tab.1, 2, fig.2); Madhupratap & Haridas, 1986 (p.105, tab.1)
Soh & al., 1999 (p.1590, Redescr.F, figs.F, fig.12: chart, phylogenetic relationships); Boxshall & Halsey, 2004 (p.150); Vives & Shmeleva, 2007 (p.391, figs.F,M, Rem.)
Espèce Nullosetigera mutica - Planche 1 de figures morphologiquesissued from : G.D. Grice & K. Huisemann in Proc. U.S. natn. Mus., 1967, 122 (3583). [p.64, Figs.266-269; p.65, Fig.270]. As Phyllopus muticus.
Female (from 22°06'S, 64°55'E): 266, habitus (lateral left side); 267, Mx1; 268, Mx2; 269, P5; 270, habitus (dorsal).

Espèce Nullosetigera mutica - Planche 2 de figures morphologiquesIssued from : G.O. Sars in Résult. Camp. Scient. Prince Albert I, 69, pls.1-127 (1924). [Pl.CXXIV, figs.10-16]. As Phyllopus muticus.
Female: 10, habitus (dirsal); 11, labrum; 12, labiul; 13, Md (masticatory edge); 14, Mx2; 15, P5; 16, anal segment and caudal rami.

Espèce Nullosetigera mutica - Planche 3 de figures morphologiquesissued from : R.B.S. Sewell in The John Murray Expedition, 1933-34, Scientific Reports, VIII (1), 1947. [p.238, Fig.64]. As Phyllopus muticus.
Male (from N Arabian Sea): A, habitus (lateral right side); B, left A1; C, proximal segments of right A1; D, A2; E, Md; F, Mx1; G, Mx2; H, P1; I, P3; J, P5.

Nota: The proportional lengths of the cephalothorax and abdomen as 63 to 37. The proportional lengths of the various segments of the body (cephalon to caudal rami) as 290:113:68:68:100:65:64:61:55:55:61 = 1000. The body is plentifully provided with the openings of numerous cutaneous glands, the first comparatively large multicellular glands that open by large apertures, the esond, small glands composed of only one or two cells, that open by small pores. A1 not reaching as faf as the posterior thoracic margin. Right 24-segmented (segmets 24-25 fused), grasping with the 1 st and 2 nd segments fused, 21-23 fused, and 24-25 fused respectively. In A2 a gland opens on the inner side of the 2nd basal segment near the origin of the marginal setae; and a smaller apertureis situated about the middle of the length of the 1st endopodal segment opposite the origin of the two marginal setae arising from that segment. In Md the biting blade agrees exactly with that of the female as figured by Sars. The maxillae and Mxp agree with those of the female. In P1 a gland opens on the 3rd segment of the exopod near the origin of the 1st marginal spine, and a similar gland opens on the 3rd segment of the endopod; P2 to P4 are plentfully supplied with glands.

Espèce Nullosetigera mutica - Planche 4 de figures morphologiquesissued from : R.B.S. Sewell in The John Murray Expedition, 1933-34, Scientific Reports, VIII (1), 1947. [p.166, Fig.44, E]. As Phyllopus muticus.
Process on the posterior aspect of the 2nd basal segment of P1.
Remarks: The shape of the hook-like or spine-like process shows some variation in different genera, but it is undoubtedly homologous throughout the whole series. The function of this organ is unknown.

Espèce Nullosetigera mutica - Planche 5 de figures morphologiquesissued from : H.Y. Soh, S. Ohtsuka, H. Imabayashi & H.-L. Suh, 1999, 33. [p.1591, Fig.6];
Female (from S Japan): A-B, habitus (dorsal and lateral, respectively); C,genital double-somite (ventral; cp = copulatory pore; sr = seminal receptacle; g = gonopore; o = oviduct); D, left Mx1; E, syncoxa of left Mxp; F, 6th endopodal segment of left Mxp (setation elements on 6th endopodal segment indicated by letters a to d); G, P5.

Espèce Nullosetigera mutica - Planche 6 de figures morphologiquesissued from : C.B. Wilson in Bull. U.S. natn Mus., 100, 14 (4). [Pl.15, Fig.189]. As Phyllopus muticus.
Female (from 22°50'S, 97°30'W): 189, P5.

Espèce Nullosetigera mutica - Planche 7 de figures morphologiquesissued from : H.B. Owre & M. Foyo in Fauna Caribaea, 1, Crustacea, 1: Copepoda. Copepods of the Florida Current. 1967. [p.92, Fig.651]. As Phyllopus muticus.
Female: 651, P5

NZ: 6

Carte de distribution de Nullosetigera mutica par zones géographiques
Espèce Nullosetigera mutica - Carte de distribution 2
Carte de 1996
Espèce Nullosetigera mutica - Carte de distribution 3issued from : R. Stephen & T.S.S. Rao in J. Plankton Res., 1980, 2 (2). [p.245, Fig.2].
Distribution of Phyllopus (= Nullosetigera) in the Indian Ocean (open circles indicate the stations selected for the study).
Espèce Nullosetigera mutica - Carte de distribution 4issued from : H.Y. Soh, S. Ohtsuka, H. Imabayashi & H.-L. Suh in J. Nat. Hist., 1999, 33. [p.1599, Fig.12].
Geographical distribution of Nullosetigera mutica (white triangle), Nullosetigera impar (black triangle), Nullosetigera bidentata (black circle) and Nullosetigera helgae (white square).
off W Canary Is., Caribbean, off S Cape Cod, Indian (Arabian Sea, E Mauricia Is., Bay of Bengal), off E Easter I. (in C.B. Wilson, 1950), S Japan (off Tanega Is., off Honshyu)
N: 10
(1) F: 4,8; (11) M: 5,03; (67) M: 7,21; (769) F: 4,63-4,55; {F: 4,55-4,80; M: 5,03-7,21}
Rem.: La femelle et le mâle sont décrits à partir de localisations géographiques très éloignées et non signalées d'une manière concomitante.
Voir aussi les remarques en anglais
Dernière mise à jour : 29/12/2015

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Razouls C., Desreumaux N., Kouwenberg J. et de Bovée F., 2005-2021. - Biodiversité des Copépodes planctoniques marins (morphologie, répartition géographique et données biologiques). Sorbonne Université, CNRS. Disponible sur [Accédé le 23 janvier 2021]

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