Magnificent Charlie, great work again.
I don't know the zoostuff, but the dino is a Protoperdinium, probably P curtipes. Nice colours!
A lot of Ditylum indeed, and a nice chain of an Odontella=Biddulphia I regret to say I do not come across overhere. From Cupp: B. longicruris. Below that is a chain of Chaetoceros debilis.
Images made through a microscope. All subject types.