Zonaria tenuissima C. Agardh, 1824: 268 (type locality: Kattegat, between Sweden and Denmark).
Punctaria tenuissima (C. Agardh) Greville, 1830: xlii, 54.
Diplostromium tenuissimum (C. Agardh) Kützing, 1843b: 298.—Zeller, 1873: 187.— Theobald, 1883: 20.
INDIAN OCEAN DISTRIBUTION: Burma.
Note: These binomials have sometimes been misapplied to representatives of Desmotrichum Kützing (1845: 244), nom. cons. (= Diplostromium Kützing (1843b: 298), nom. rej.), a genus that is not clearly distinguished from Punctaria Greville (1830: xlii, 52) in the opinion of Pedersen (1984: 23).