Chroococcus rufescens (Kützing) Nägeli var. turicensis Nägeli, 1849: 46, pl. IA: fig. 1 (type locality: Zürich, Switzerland).
Chroococcus turicensis (Nägeli) Hansgirg, 1887: 165.—Whitton & Potts, 1979b: 5.
INDIAN OCEAN DISTRIBUTION: Aldabra Islands.
Note: Drouet & Daily (1956: 78–79), on the basis of notes and sketches in Nägeli's notebooks (at ZT), assigned this species to Anacystis thermalis (Meneghini) Drouet & Daily forma thermalis.