| Species name | Common name | Distribution | Max. Length (cm) |
|---|---|---|---|
| Hypoglossum attenuatum N.L. Gardner |
Western Central Pacific | ||
| Hypoglossum barbatum Okamura |
Western Central Pacific | ||
| Hypoglossum heterocystideum (J. Agardh) J. Agardh |
Western Central Atlantic | ||
| Hypoglossum hypoglossoides (Stackhouse) F.S. Collins & Hervey |
Western Central Atlantic | ||
| Hypoglossum minimum Yamada |
Indian Ocean | 1.2 | |
| Hypoglossum parvulum Levring, 1941 |
Southeast Pacific |