Scytonema siculum Borzì, 1879: 374 (type locality: Palermo, Italy).—Islam, 1974a: 23, pl. 9: figs. 6–10.— Islam, 1974b: 90.— Islam, 1976: 73.
INDIAN OCEAN DISTRIBUTION: Bangladesh.
Note: Drouet (1973: 57), on the basis of the original description, assigned this species to Scytonema hofmannii C. Agardh.