| Species name | Common name | Distribution | Max. Length (cm) |
|---|---|---|---|
| Ulva acanthophora (Kützing) Hayden, Blomster, Maggs, P.C. Silva, Stanhope & J.R. Waaland |
Eastern Central Pacific | ||
| Ulva californica Wille |
Western Indian Ocean | ||
| Ulva chaetomorphoides (Børgesen) Hayden, Blomster, Maggs, P.C. Silva, M.J. Stanhope & J.R. Waaland |
Atlantic Ocean and Western Pacific | ||
| Ulva clathrata (Roth) C. Agardh |
Bright green nori | Indo-Pacific, Atlantic Ocean, and the Mediterranean | 20 |
| Ulva compressa Linnaeus, 1753 |
Southeast Pacific, Western Indian Ocean and the Mediterranean Sea | ||
| Ulva fasciata Delile |
Indo-Pacific | ||
| Ulva flexuosa Wulfen |
Winding nori | Atlantic and Indo-Pacific | 20 |
| Ulva intestinalis Linnaeus |
Hollow green nori | Arctic, Indo-Pacific, Atlantic Ocean, Mediterranean and Black Sea | 20 |
| Ulva kylinii (Bliding) Hayden, Blomster, Maggs, P.C. Silva, M.J. Stanhope & J.R. Waaland |
Northeast Atlantic and Western Indian Ocean | ||
| Ulva lactuca Linnaeus, 1753 |
Sea lettuce | Atlantic Ocean, Indo-Pacific | 100 |
| Ulva laetevirens Areschoug |
Indo-Southwest Pacific | ||
| Ulva linza Linnaeus |
Flat-tube sea lettuce | Eastern Pacific and the Mediterranean Sea | |
| Ulva pertusa Kjellman |
Western Indian Ocean | ||
| Ulva prolifera O.F. Müller |
Branched string lettuce | Western Central Atlantic, Western Indian Ocean, Southeast Pacific and the Mediterranean Sea | |
| Ulva pseudolinza (Koeman & Hoek) Hayden, Blomster, Maggs, Silva, Stanhope & Waaland, 2003 |
Northeast Atlantic | ||
| Ulva radiata (J. Agardh) Hayden, Blomster, Maggs, P.C. Silva, M.J. Stanhope & J.R. Waaland |
Northeast Atlantic | ||
| Ulva ralfsii (Harvey) Le Jolis |
Northeast Atlantic | ||
| Ulva reticulata Forsskål |
Pacific and Western Indian Ocean | ||
| Ulva rigida C. Agardh |
Southeast Pacific, Western Central Atlantic, Western Indian Ocean and the Mediterranean | ||
| Ulva torta (Mertens) Trevisan |
Northeast Atlantic |