Lyngbya diguetii Gomont in Hariot, 1895: 169–170 (`digueti') (type locality: Santa Gertrudis, Baja California, Mexico).—Whitton & Potts, 1979b: 5.— Thajuddin & G. Subramanian, 1992a: table III.
Phormidium diguetii (Gomont) Anagnostidis & Komárek, 1988: 408.
INDIAN OCEAN DISTRIBUTION: Aldabra Islands, India.
Note: Drouet (1968: 45–46, 81), after examining the type of this species (in PC), assigned it to Schizothrix calcicola (C. Agardh) Gomont.