Millepora polymorpha Linnaeus var. ramosa Esper, 1789 [1788–1791]: pl. Millepora XIV; 1790 [1788–1791]: 217–220 (syntype localities: "aus den Ostindischen Meeren''; "aus Indien''; "aus Ostindien'').
Lithothamnion esperi Heydrich, 1897a: 66.
INDIAN OCEAN DISTRIBUTION: India?, Indonesia?
Note: In elevating Millepora polymorpha var. ramosa to specific rank, Heydrich (1897a: 66) did not indicate which of the three original forms (ramis conicis, divaricata, and cuneiformis) he considered typical. (See Note to Lithothamnion album.)