Rhodoglossum gigartinoides is a species of red algae, of the Gigartinaceae family. This algae is found primarily in marine waters of Australia and New Zealand. It was reported in the subantarctic Kerguelen Islands in 2021.
Taxonomy.
"R. gigantinoides" was originally described in 1855 in the genus "Grateloupia" by Otto Wilhelm Sonder. It was reclassified into the genus "Rhodoglossum" in 1993. It also has 13 heterotypic synonyms in the genera "Gigartina, Rhodoglossum", and "Iridaea".