The vertical distributions and diurnal migrations of calanoid copepods collected on the SOND Cruise, 1965. I I . Systematic account: families Calanidae up to and including the Aetideidae

This paper is the second of four dealing with the calanoid copepods taken with a modified Indian Ocean Standard Net (N113H) on the R.R.S. 'Discovery' SOND cruise of 1965. Details of the cruise are given by Currie, Boden & Kampa (1969), and the sampling methods used in the N113H series are described by Foxton (1969) and by Angel (1969).