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Marine Planktonic Copepods
Euaugaptilus gibbus  Wolfenden, 1904   (F,M)
Taxonomy
Order Calanoida
Superfamily Arietelloidea
Family Augaptilidae

Synonymy

Augaptilus gibbus Wolfenden, 1904 (p.122); 1911 (p.337, figs.F); Pearson, 1906 (p.28); Farran, 1908 b (p.75, Rem.F)

References

Sars, 1925 (p.300, figs.F,M); Rose, 1933 a (p.230, figs.F,M); Lysholm & al., 1945 (p.38); Sewell, 1947 (p.198, 199, 200, 201); 1948 (p.504); Vervoort, 1965 (p.142, Rem.); Matthews, 1972 (p.31); Park, 1993 (p.25, figs.F, Rem.); Bradford-Grieve & al., 1999 (p.882, 939, figs.F,M); Vives & Shmeleva, 2007 (p.198, figs.F,M, Rem.)

Figures

Plate 1 Issued from : G.O. Sars in Résult. Camp. Scient. Prince Albert I, 69, pls.1-127 (1924). [Pl.CIV, figs.1-16].
Female: 1, habitus (dorsal); 2, idem (lateral left side); 3, forehead (lateral); 4, rostrum; 5, A2; 6, Md; 7, Mx1; 8, Mx2; 9, Mxp; 10, P1; 11, P2; 12, P3; 13, P5; 14, posterior part of urosome.

Male: 15, left A1; 16, P5.
Plate 2 issued from : T. Park in Biology of the Antarctic Seas, XXII. Antarct. Res. Ser., Washington, 58. [p.26, Fig.17].
Female: a-b, habitus (dorsal and lateral, respectively); c-d, urosome (lateral and dorsal, respectively); e, A2; f, Md; g, Md (biting edge); h, Mx1.
Nota: Urosome about 29 % length of prosome. Genital segment about 43 % length of urosome
Plate 3 issued from : T. Park in Biology of the Antarctic Seas, XXII. Antarct. Res. Ser., Washington, 58. [p.27, Fig.18].
Female: a, Mx2; b, Mxp; c-g, P1 to P5 (anterior views).
Plate 4 issued from : R.N. Wolfenden in Die Marinen Copepoden der Deutschen Südpolar-Expedition 1901-1903, 1911. [p.338, Fig.72]. As Augaptilus gibbus.
Female (from off SE Ascension Is.): a, forehead (lateral); b, Md; c, Mx1; d, A2.
Plate 5 issued from : R.N. Wolfenden in Die Marinen Copepoden der Deutschen Südpolar-Expedition 1901-1903, 1911. [Pl.XXXVII, Figs.2-3]. As Augaptilus gibbus.
Female: 2, habitus (dorsal); 3, P1.
Plate 6 issued from : J. Mauchline in J. mar. biol. Ass, U.K., 1977, 57 (4). [p.980, Fig.4, C].
Integumental organs (right halves of 1st and 2nd thoracic segments).
Plate 7 issued from : J.M. Bradford-Grieve, E.L. Markhaseva & C.E.F. Rocha & B. Abiahy in South Atlantic Zooplankton, Edit. D. Boltovskoy. 1999. Vol.2. Copepoda. [p.1037, Fig. 7.250].
Female: Mx1.

Nota: Exopod of Mx1 with 4 setae; outer lobe 1 with 3 setae.

Complementary References

C.B. Wilson, 1950 (p.205); De Decker & Mombeck, 1964 (p.12); Roe, 1972 (p.277, tabl.1, tabl.2); Deevey & Brooks, 1977 (p.156, tab.2, Station "S"); Vives, 1982 (p.294); Roe, 1984 (p.359); Razouls & al., 2000 (p.343, Appendix); Holmes, 2001 (p.11); Park & Ferrari, 2009 (p.143, Table 5, Appendix 1, biogeography); Matsuura & al., 2010 (p.2098, Table 3, figs.7, 8)

Distribution

Localisations

sub-Antarct. (Indian, SE Pacif.), South Africa (E), off N St. Helena Is., Atlant. (tropical & temperate), G. of Guinea, off W Canary Is., off Madeira, off Portugal, Morocco-Mauritania, Azores, Bay of Biscay, W Gibraltar, off W Cabo Finisterre, off SW Ireland, off Bermuda (Station "S"), Indian, Celebes and Sulu Seas, Pacif. (N tropical), California

Quotations

N: 16

Dimensions (mm)

(1) F: 3,4; (10) F: 2,7; (16) F: 3,53-3,21; M: 3,8; (24) F: 3,36; (48) F: 3,48-3,4; (199) F: 3,19-2,89; M: 3,19-3,12; {F: 2,70-3,53; M: 3,12-3,80}

Remarks

meso-bathypelagic. After Pearson (1906, p.28): vertical range down to 700 m at 51°N, 12°W. Known to occur at depths between 400 and 1300 m Matthews, 1972). Sampling depth (sub-Antarct.): 0-1000 m. Sargasso Sea: 500-1000 m (Deevey & Brooks, 1977, Station "S");
For Park (1993, p.27) this species can be readily distinguished from the others in the genus by its characteristic gibbous swelling on the back of the head, and swollen setae on the mandibular palp; also characteristic is the presence on the P1 basis of a large conspicuous tubercle bearing a seta.

In ''affinis"" Group after Matthews (1972, p.64) {See remarks in Euaugaptilus genus}
Last update : 04/12/2020

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