Note: Oscillatoriaceae Engler (1898: 6) has been conserved against Lyngbyaceae (Gomont) Hansgirg (1892a: 1), which was shown by P. Silva (1980b: 53) to be the earliest name for this family (see P. Silva, 1993b: 705).
Lyngbya? cantharidosma Montagne, 1841 [1839–1841]: 188 (type locality: Islas Canarias).—Dickie, 1874b: 200.
Hydrocoleum cantharidosmum (Montagne) Gomont, 1890: 353.—Gomont, 1892a: 336–337, pl. 12: figs. 6, 7.— Jadin, 1894: CLXV–CLXVII.— Hieronymus, 1895a: 9.— Forti, 1907: 316–317 (`Hydrocoleus cantharidosmus').— Weber-van Bosse, 1913a: 17–18.— Geitler, 1932 [1930–1932]: 1148, fig. 755 (`Hydrocoleus cantharidosmus').— Desikachary, 1959: 347, pl. 46: figs. 4, 5.— Lawson, 1969: 332.— Islam, 1974a: 22, pl. 8: fig. 19.— Islam, 1974b: 90.— Islam, 1976: 72, pl. 72: fig. 417.— Lawson, 1980: 19.— Thajuddin & G. Subramanian, 1992a: table III.
Blennothrix cantharidosma (Montagne) Anagnostidis & Komárek, 1988: 429.
INDIAN OCEAN DISTRIBUTION: Bangladesh, India, Indonesia (Solor), Kenya, Mauritius, Sri Lanka, Tanzania.
Note: Drouet (1968: 266, 297), after examining the holotype of this species (in PC), assigned it to Microcoleus lyngbyaceus (Kützing) P. Crouan & H. Crouan.