Species Card of Copepod
Calanoida ( Order )
    Clausocalanoidea ( Superfamily )
        Phaennidae ( Family )
            Cornucalanus ( Genus )
Cornucalanus sewelli  Vervoort, 1957   (F)
Syn.: Cornucalanus simplex : Sewell, 1929 (p.178, fig.F)
Ref.:
Vervoort, 1957 (p.93, Rem.)
Species Cornucalanus sewelli - Plate 1 of morphological figuresissued from : R.B.S. Sewell in Mem. Indian Mus., 1929, X. [p.179, Fig.65]. As Cornucalanus simplex.
Female (from off SE Sri-Lanka): Mxp.

NZ: 1

Distribution map of Cornucalanus sewelli by geographical zones
Loc:
Indian (off E Sri Lanka)
N: 1
Lg.:
(29) F: 4; {F: 4,00}
Rem.: meso-bathypelagic.
For Vervoort (1957, p.93) the form recorded by Sewell (1920) as Cornucalanus simplex from the Bay of Bengal, differs from previously published accounts of this form. The is without cephalic spine and of intermediate length (4.0 mm). The postero-lateral thoracic border is produced into a triangular plate that is rounded at the apex and has no spine as occurs in Cornucalanus simplex. The claws on the terminal portion of Mxp are of the type met with in Cornucalanus chelifer, i.e., with coarse, widely spaced spinules at the base and fine spinules at the apical portion; thus quite different from the condition found in C. simplex. All spinules on the claws are set in a single, longitudinal row; the coarse spinules cover about 2/3 of the length. The particulars of the P5 have not been described by Sewell.
Last update : 02/01/2015
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Razouls C., Desreumaux N., Kouwenberg J. and de Bovée F., 2005-2024. - Biodiversity of Marine Planktonic Copepods (morphology, geographical distribution and biological data). Sorbonne University, CNRS. Available at http://copepodes.obs-banyuls.fr/en [Accessed February 24, 2024]

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