Cornucalanus simplex - Species Card - Marine Planktonic Copepods

Cornucalanus simplex Wolfenden, 1905 (F)

Taxonomy

Order Calanoida

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Superfamily Clausocalanoidea

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Family Phaennidae

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Genus Cornucalanus

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Abbreviations or symbols

Synonymy

no Cornucalanus simplex : Sewell, 1929 (p.178, fig.F)

References

List of the studied authors

Wolfenden, 1905 a (p.22); A. Scott, 1909 (p.83, figs.F, Rem.); Sars, 1925 (p.153, figs.F); Rose, 1933 a (p.139, figs.F); Vervoort, 1951 (p.93, Rem.: with doubt); 1957 (p.91, 92, Rem.); 1965 (p.34); Park, 1983 a (p.364, figs.F, Rem.); Vives & Shmeleva, 2007 (p.685, figs.F, Rem.)

Figures

Plate 1 issued from : T. Park in Antarct. Res. Ser. Washington, 1983, 39 (5). [p.364, Fig.31].
Female: a, forehead (lateral); b, last thoracic segments and urosome (lateral left side); c, idem (dorsal); d, forehead (dorsal); e, rostrum (anterior); f, endopod of Mxp; g, P5 (posterior).

Species Cornucalanus simplex - Plate 2 of morphological figures

Plate 2 Issued from : G.O. Sars in Résult. Camp. Scient. Prince Albert I, 69, pls.1-127 (1924). [Pl.XLII, figs.15-20].
Female: 15, habitus (dorsal); 16, idem (lateral left side); 17, forehead (lateral); 18, rostrum (frontal view); 19, Mxp; 20, P5.

Plate 3 issued from : A. Scott in Siboga-Expedition, 1909, XIX a. [Plate XXXV, Figs.1-9].Female (from Halmahera Sea): 1, habitus (dorsal); 2, forehead (lateral); 3, last thoracic and genital segments (left side); 4, rostrum; 5, A1; 6, Mx2 (distal portion); 7, P2; 8, P4; 9, P5.

Complementary References

List of the studied authors

Sewell, 1948 (p.501, 521, 546); Grice & Hulsemann, 1967 (p.16); Björnberg, 1973 (p.331, 385); Razouls & al., 2000 (p.343, Appendix); Park & Ferrari, 2009 (p.143, Table 4, Appendix 1, biogeography)

Distribution

NZ: 6

Distribution map of Cornucalanus simplex by geographical zones

Distribution map of Cornucalanus simplex for the Zone Indian Ocean

Distribution map of Cornucalanus simplex for the Zone Antarctic

Localisations

Geographical glossary

Antarct. (S Atlant., SW Pacif., Ross Sea), off Ghana, off Cape Finisterre, Azores, W Indian, Indonesia-Malaysia, N Chile

Quotations

N: 8

Dimensions (mm)

References of the authors concerning dimensions

(1) F: 6,3; (5) F: 5; (15) F: 6,41; 6,35; {F: 5,00-6,41}

Remarks

Bathypelagic.
Sampling depth (Antarct.) : 0-2000 m.
This species is similar to C. robustus but can be distinguished from it.
For Vervoort (1957, p.92) this species has a rounded head, without any trace of a cephalic spine. The curved claws on the terminal portion of Mxp both have a longitudinal row of fine, closely packed spinules and thus are quite different from those met with in C. chelifer. The postero-lateral thoracic border is broadly triangular and minutely pointed; the small point is obtuse. P5 of both sides are 3-segmented; the basal segments of each sides are sparingly haired and fused to some extent; the free terminal segments are densely haired; the apical segment has 3 spinules, 1 at the apex and 2 subapical spines of unequal length on each side of the apical spine.

Last update : 02/01/2015

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