Rivularia contarenii Zanardini, 1840a: 134 (lectotype locality: Venezia, Italy fide Drouet, 1973: 167, 184).
Calothrix contarenii (Zanardini) Bornet & Flahault, 1886a [1886–1888]: 355.—Iyengar & Desikachary, 1944: 48, fig. 9.— Khan & P. Anand, 1944: 61.— Desikachary, 1959: 524, pl. 111: figs. 2, 5–8.— Whitton & Potts, 1979b: 3, 5.— Russell, 1981: 466.— D. Jones, 1986: 29, pl. 4.— Lambert, Steinke, & Naidoo, 1989: 487–488, fig. 25, tables 2, 3.— G. Subramanian et al., 1989: 311.— Jagtap, 1992: 57.— S. Silva, 1992a: 115, figs. 33, 34.— Thajuddin & G. Subramanian, 1992a: table III.— Jagtap, 1993: table I.
INDIAN OCEAN DISTRIBUTION: Aldabra Islands, Chagos Archipelago (Egmont Atoll), India, Kuwait, Mauritius, Mozambique, Nicobar Islands, South Africa.
Note: Drouet (1973: 166–167, 184) chose a specimen in PC as the lectotype of this species and assigned it to Calothrix crustacea Thuret.