what family do protist belong to
2016-10-31T11:04:01-04:00. The answer is Kingdom: Protista, Phylum: Chlorophyta, Class: Zygnematophycaea. Spyrogyra is a genus of the family Zygnemataceae of the order Zygnematales of the class Zygnematophycaea of the phylum Chlorophyta of the kingdom Protista. Kingdom: Protista.