Species Card of Copepod
Cyclopoida ( Order )
    Lubbockiidae ( Family )
        Homeognathia ( Genus )
Homeognathia brevis  (Farran, 1908)   (F,M)
Syn.: Lubbockia brevis Farran, 1908 b (p.96, Descr.F, figs.F); Rose, 1933 a (p.305, figs.F); Sewell, 1948 (p.483, 506); Boxshall, 1977 a (p.121, Descr.M, figs.M); Heron & Damkaer, 1978 (p.4); Heron & al., 1984 (p.455, Redescr.F,M, figs.F,M);
Ref. compl.: C.B. Wilson, 1950 (p.254, Rem.); Pavlova, 1966 (p.45); Björnberg, 1973 (p.364, 387); Boxshall, 1977 b (p.551); Kovalev & Shmeleva, 1982 (p.86); Uysal & al., 2002 (p.18, tab.1); Kosobokova & Hopcroft, 2010 (p.96, Table 1); Kosobokova & al., 2011 (p.29, Table 2, Rem.: Arctic Basins)
Ref.:
Huys & Böttger-Schnack, 1996/97 (p.260); Boxshall & Halsey, 2004 (p.577); Vives & Shmeleva, 2010 (p.247, figs.F,M, Rem.)
Species Homeognathia brevis - Plate 1 of morphological figuresissued from : G.A. Boxshall in Brit. Mus. nat. Hist., Zool., 1977, 31 (3). [p.120, Fig.9].
Male (from 18°N, 25°W): a, habitus (dorsal); b, A1 (ventral); c, A2 (anterior); d, urosome (ventral); e, Md (anterior); f, Mx1 (posterior); g, Mx2 (anterior); h, Mxp (anterior).
Nota: Prosome very broad and twice as long as the urosome.Caudal rami just longer than anal somite. A1 7-segmented. A2 3-segmented. mx1 bilobed; inner lobe with 2, outer lobe with 3 setae. Mxp 3-segmented; middle segment with a row of fine spinules on inner margin; terminal claw unarmed. P5 a free segment with a long apical seta and a short lateral seta. P6 represented on genital complex by a short postero-lateral projection with a apical spinule.


Species Homeognathia brevis - Plate 2 of morphological figuresissued from : G.A. Boxshall in Brit. Mus. nat. Hist., Zool., 1977, 31 (3). [p.122, Fig.10].
Male: a-d, P1 to P4 (posterior).


Species Homeognathia brevis - Plate 3 of morphological figuresissued from : G.A. Heron, T.S. English & D.M. Damkaer in J. Crustacean Biol., 1984, 4 (3). [p.462, Fig.7]. As Lubbockia brevis.
Female (from Arctic): A-B, habitus (lateral and dorsal, respectively; scale bar: y); C, urosome (ventral; scale bar: w); D, rostrum (ventral; zcale bar: v); E, right A1 (scale bar: W); F, left A2 (scale bar: w); G, labrum (ventral; scale bar: x); H, left Md (scale bar: x); I, right Mx1 (scale bar: x).


Species Homeognathia brevis - Plate 4 of morphological figuresissued from : G.A. Heron, T.S. English & D.M. Damkaer in J. Crustacean Biol., 1984, 4 (3). [p.463, Fig.8]. As Lubbockia brevis.
Female: A, right Mx2 (scale bar: x); B, right Mxp (scale bar: w); C-F, P1 to P4 (scale bar: w).


Species Homeognathia brevis - Plate 5 of morphological figuresissued from : G.A. Heron, T.S. English & D.M. Damkaer in J. Crustacean Biol., 1984, 4 (3). [p.464, Fig.9, A-C]. As Lubbockia brevis.
Male: A-B, habitus (lateral and dorsal, respectively; scale bar: y); C, urosome (ventral; scale bar: w).


Species Homeognathia brevis - Plate 6 of morphological figures issued from : G.P. Farran in Fish. Ire. Sci. Invest., 1906, II [1908]. [Pl. XI, Figs.1-8]. As Lubbockia brevis.
Female (from 54°50'N, 10°30'W): 1, habitus (dorsal); 2, P2; 3, P3; 4, Mxp; 5, A2; 6, P4; 7, P1; 8, Mx2.

Compl. Ref.:
Benedetti & al., 2016 (p.159, Table I, fig.1, functional characters)
NZ: 6

Distribution map of Homeognathia brevis by geographical zones
Loc:
off NW Ireland, Arct. (Chukchi Sea, Nansen Basin, Amundsen Basin, Makarov Basin, Canada Basin), Cape Verde Is., Medit. (W Basin, Aegean Sea, Lebanon Basin), Philippines (in C.B. Wilson, 1950), Chile (38°- 40°S; in Björnberg, 1973)
N: 11
Lg.:
(24) F: 0,85; (139) M: 1,43; 1,18; (675) F: 1,04-0,88; M: 0,94-0,84; {F: 0,85-1,04; M: 0,84-1,43}
Rem.: bathypelagic.
For Heron & al. (1984, p.459) this species bears a close resemblance to L. flemingi (= Homeognathia flemingi), but may be separated by the longer spiniform setule of P6 and proportionally longer caudal ramus for both sexes.
Last update : 20/02/2018
    to add your remark
  

 Any use of this site for a publication will be mentioned with the following reference :

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 October 18, 2021]

© copyright 2005-2021 Sorbonne University, CNRS

Webmaster
CNRS   Observatoire Océanologique de Banyuls sur Mer - Laboratoire Arago
Sorbonne Université

 

Version française
English version

 

Search

On the WEB of CNRS

 


Marine Planktonic Copepods

Marine Planktonic Copepods

 

Imprimer Contact Accueil Plan du site Accès restreint Retour Une du Labo Imprimer Contact Plan du site Crédits Téléchargez les Plug-Ins