Homeognathia brevis - Species Card - Marine Planktonic Copepods

Homeognathia brevis Farran, 1908 (F,M)

Taxonomy

Order Cyclopoida

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Family Lubbockiidae

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Genus Homeognathia

details list species for this Genus

Abbreviations or symbols

Synonymy

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)

References

List of the studied authors

Huys & Böttger-Schnack, 1996/97 (p.260); Boxshall & Halsey, 2004 (p.577); Vives & Shmeleva, 2010 (p.247, figs.F,M, Rem.)

Figures

Plate 1 issued 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 figures

Plate 2 issued 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 figures

Plate 3 issued 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 figures

Plate 4 issued 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 figures

Plate 5 issued 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

Plate 6 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.

Complementary References

List of the studied authors

Benedetti & al., 2016 (p.159, Table I, fig.1, functional characters)

Distribution

NZ: 6

Distribution map of Homeognathia brevis by geographical zones

Distribution map of Homeognathia brevis for the Zone Mediterranean Sea, Black Sea

Localisations

Geographical glossary

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)

Quotations

N: 11

Dimensions (mm)

References of the authors concerning dimensions

(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}

Remarks

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

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