文摘
A species of non-geniculate coralline alga that is common in the subtidal zone of South Africa (SA) was studied from collections made around the SA coast. It was compared with the holotype of Lithothamnion superpositum, to which it was found to conform. SA material and the type were also compared with published descriptions and illustrations of Lithothamnion indicum from Australia. These taxa are conspecific, so L. indicum is a heterotypic synonym of L. superpositum, which epithet has historical priority. Specimens from Madeira were also found to conform to this species.