Pseudanabaena catenata Lauterborn, 1915: 437–438, pl. III: fig. 27 (type locality: Bobenheim, Germany).—Whitton & Potts, 1979b: 6.— G. Subramanian et al., 1989: 312.— Thajuddin & G. Subramanian, 1992a: table III.
INDIAN OCEAN DISTRIBUTION: Aldabra Islands, India.
Note: Drouet (1968: 58), on the basis of the original description, assigned this species to Schizothrix calcicola (C. Agardh) Gomont.