Merismopedia mediterranea Nägeli, 1849: 56 (`Merismopoedia') (type locality: Sorrento, near Napoli, Italy).—Barton, 1896: 458.
Merismopedia glauca (Ehrenberg) Kützing forma mediterranea (Nägeli) Collins in Collins, Holden, & Setchell, 1910 [1895–1919]: no. 1651 (`Merismopedium glaucum forma mediterraneum').
INDIAN OCEAN DISTRIBUTION: South Africa.
Note: Drouet & Daily (1956: 90), on the basis of the original description, assigned this species to Agmenellum thermale (Kützing) Drouet & Daily.