Classification
provided by World Register of Marine Species
By some considered a subspecies of C. finmarchicus. A discussion on the identification of both C. finmarchicus and C. helgolandicus is given by van Breemen (1906).
Ices Zooplankton: Copepoda. sheet n° 32.
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Distribution
provided by World Register of Marine Species
C. helgolandicus might have a more southern distribution compared to the one of the congener species C. finmarchicus.
van Breemen, P.J. (1906). Mariene copepoden [Marine copepods]. Fauna van Nederland, 1. E.J. Brill: Leiden, The Netherlands. 31 pp.
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