| Species name | Common name | Distribution | Max. Length (cm) |
|---|---|---|---|
| Halocynthia aurantium (Pallas, 1787) |
Pacific sea peach | Arctic and Northern Pacific | 15 |
| Halocynthia cactus Oka, 1932 |
Western Pacific | ||
| Halocynthia dumosa (Stimpson, 1855) |
Spiny sea squirt | Indo-Pacific | 0.8 |
| Halocynthia hilgendorfi (Traustedt, 1885) |
Northwest Pacific | ||
| Halocynthia igaboja Oka, 1906 |
Bristly tunicate | Pacific Ocean | 0.1 |
| Halocynthia johnsoni Ritter, 1909 |
Eastern Central Pacific | ||
| Halocynthia microspinosa (Van Name, 1921) |
Western Central Atlantic | 5 | |
| Halocynthia momus Savigny, |
Western Indian Ocean | ||
| Halocynthia okai Ritter, 1907 |
Northwest Pacific | ||
| Halocynthia owstoni Oka, 1906 |
Northwest Pacific | ||
| Halocynthia papillosa (Gunnerus, 1765) |
Atlantic, Western Pacific, and the Mediterranean | ||
| Halocynthia pyriformis (Rathke, 1806) |
Sea peach | Northern Atlantic, Northwest Pacific and the Arctic | 13 |
| Halocynthia ritteri Oka, 1906 |
Northwest Pacific | ||
| Halocynthia roretzi (Drasche) |
Korean common sea squirt | Northwest Pacific | |
| Halocynthia spinosa Sluiter, 1905 |
Southeast Atlantic and Indo-West Pacific |