A question: Joris van Cats' five ships off the coast of Spain

The plan had been to send Maarten Tromp to command a fleet of 15 Dutch warships in the Mediterranean Sea to protect Dutch commerce. When Tromp became ill, Joris van Cats was sent without Tromp. Before entering the Mediterranean Sea, he cruised off the coast of Spain. In his article about the First Anglo-Dutch War in the Mediterranean Sea, R. C. Anderson said that Joris van Cats, with five ships under his command, cruised near Cadiz before entering the Mediterranean Sea. This sounded a lot like what one list says, except the list says that the five ships cruised off Cape St. Vincent, which is on the coast of Portugal, a long ways from Cadiz. Anderson does not say what ships were under Joris van Cats' command. My question is: which five ships were they? I assume that they were all from the Admiralty of Amsterdam.

R. C. Anderson, "English Fleet-Lists in the First Dutch War," The Mariner's Mirror, Vol.XXIV No.4, October 1938.