| Species name | Common name | Distribution | Max. Length (cm) |
|---|---|---|---|
| Kappaphycus alvarezii (Doty) Doty ex P.C. Silva |
Elkhorn sea moss | Atlantic Ocean | |
| Kappaphycus cottonii (Weber-van Bosse) Doty ex P.C. Silva |
Southeast Pacific | ||
| Kappaphycus striatum (F. Schmitz) Doty ex P.C. Silva |
Western Central Pacific |