Asperococcus tortilis Suhr, 1836: 339–340, pl. III: figs. 24, 25 (type locality: "Ostindien'').—De Toni, 1895b: 496.
Encoelium tortile (Suhr) Trevisan, 1845: 45.—Kützing, 1849: 552.— Kützing, 1859: 3, pl. 6: fig. I.— G. Martens, 1868: 70–71.
Scytosiphon tortilis (Suhr) Trevisan, 1849b: 432.
INDIAN OCEAN DISTRIBUTION: "Ostindien''.
Note: It is unknown whether the material upon which these records are based is from the Indian Ocean.