Phormidium jenkelianum G. Schmid, 1914: 126–128, fig. 2 (type locality: Thüringen, Germany).—Basson et al., 1977: 225, 258.— Basson, 1979: 65, pl. VIII: fig. 46.— Al-Hasan & W. Jones, 1989: 307.
INDIAN OCEAN DISTRIBUTION: Kuwait, Saudi Arabia.
Note: Drouet (1968: 57), on the basis of the original description, assigned this species to Schizothrix calcicola (C. Agardh) Gomont.