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Marine Planktonic Copepods
Arietellus pacificus  Esterly, 1913   (F)
Taxonomy
Order Calanoida
Superfamily Arietelloidea
Family Arietellidae

References

Esterly, 1913 (p.189, figs.F); Brodsky, 1950 (1967) (p.397, figs.F)

Figures

Plate 1 Issued from : C.O. Esterly in Univ. Calif. Publs Zool., 1913, 11 (10). [Pl. 10, Figs. 9, 23].
Female (from S California): 9,forehead (lateral); 23, abdomen and last thoracic segment (lateral).

Nota : Rostral filaments delicate but straight and rather stiff.
A1 19-segmented, reaching the posterior border of the 2 nd thoracic segment ; 1st segment as long as the next eight together.
Cephalothorax length = 3.6 mm.
Coloration opaque and without pigment.
Plate 2 Issued from : C.O. Esterly in Univ. Calif. Publs Zool., 1913, 11 (10). [Pl. 12, Figs. 46, 55].
Female: 46, P1; 55, P5.

Nota: P1 length : 1.285 mm. P5 (two sdistal segments only) : 400 µm.

Complementary References

Sewell, 1948 (p.559, 563); Suarez-Morales & Gasca, 1998 a (p108); Galbraith, 2009 (pers. comm.); in CalCOFI regional list (MDO, Nov. 2013; M. Ohman, pers. comm.)

Distribution

NZ: 2

Distribution map of Arietellus pacificus by geographical zones


Localisations

NE Pacif. (California, Vancouver Is.)

Quotations

N: 3

Dimensions (mm)

Last update : 29/12/2014

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