n = 70
| Scientific Name | Author | Valid Name | Family | English Name |
|---|---|---|---|---|
| Thalassoma amblycephala | (Bleeker, 1856) | Thalassoma amblycephalum | Labridae | Bluntheaded wrasse |
| Thalassoma amblycephalum | (Bleeker, 1856) | Thalassoma amblycephalum | Labridae | Bluntheaded wrasse |
| Thalassoma amblycephalus | (Bleeker, 1856) | Thalassoma amblycephalum | Labridae | Bluntheaded wrasse |
| Thalassoma ascensionis | (Quoy & Gaimard, 1834) | Thalassoma ascensionis | Labridae | Greenfish |
| Thalassoma ballieui | (Vaillant & Sauvage, 1875) | Thalassoma ballieui | Labridae | Blacktail wrasse |
| Thalassoma bifasciatum | (Bloch, 1791) | Thalassoma bifasciatum | Labridae | Bluehead |
| Thalassoma bilateralis | von Bonde, 1934 | Hemigymnus fasciatus | Labridae | Barred thicklip |
| Thalassoma bisfaciatum | (Bloch, 1791) | Thalassoma bifasciatum | Labridae | Bluehead |
| Thalassoma commersoni | (Valenciennes, 1839) | Thalassoma genivittatum | Labridae | Red-cheek wrasse |
| Thalassoma cupido | (Temminck & Schlegel, 1845) | Thalassoma cupido | Labridae | |
| Thalassoma duperrey | (Quoy & Gaimard, 1824) | Thalassoma duperrey | Labridae | Saddle wrasse |
| Thalassoma duperreyi | (Quoy & Gaimard, 1824) | Thalassoma duperrey | Labridae | Saddle wrasse |
| Thalassoma fuscum | (Lacepède, 1801) | Thalassoma trilobatum | Labridae | Christmas wrasse |
| Thalassoma fuscus | (Lacepède, 1801) | Thalassoma trilobatum | Labridae | Christmas wrasse |
| Thalassoma genivittatum | (Valenciennes, 1839) | Thalassoma genivittatum | Labridae | Red-cheek wrasse |
| Thalassoma grammaticum | Gilbert, 1890 | Thalassoma grammaticum | Labridae | Sunset wrasse |
| Thalassoma hardwichei | (Bennett, 1830) | Thalassoma hardwicke | Labridae | Sixbar wrasse |
| Thalassoma hardwicke | (Bennett, 1830) | Thalassoma hardwicke | Labridae | Sixbar wrasse |
| Thalassoma hardwickei | (Bennett, 1830) | Thalassoma hardwicke | Labridae | Sixbar wrasse |
| Thalassoma hardwicki | (Bennett, 1830) | Thalassoma hardwicke | Labridae | Sixbar wrasse |
| Thalassoma hardwickii | (Bennett, 1830) | Thalassoma hardwicke | Labridae | Sixbar wrasse |
| Thalassoma hebraicum | (Lacepède, 1801) | Thalassoma hebraicum | Labridae | Goldbar wrasse |
| Thalassoma heiseri | Randall & Edwards, 1984 | Thalassoma heiseri | Labridae | |
| Thalassoma herbraicum | (Lacepède, 1801) | Thalassoma hebraicum | Labridae | Goldbar wrasse |
| Thalassoma janseni | (Bleeker, 1856) | Thalassoma jansenii | Labridae | Jansen's wrasse |
| Thalassoma jansenii | (Bleeker, 1856) | Thalassoma jansenii | Labridae | Jansen's wrasse |
| Thalassoma klunzingeri | Fowler & Steinitz, 1956 | Thalassoma rueppellii | Labridae | Klunzinger's wrasse |
| Thalassoma kluzingeri | Fowler & Steinitz, 1956 | Thalassoma rueppellii | Labridae | Klunzinger's wrasse |
| Thalassoma loxum | Randall & Mee, 1994 | Thalassoma loxum | Labridae | |
| Thalassoma lucasanum | (Gill, 1862) | Thalassoma lucasanum | Labridae | Cortez rainbow wrasse |
| Thalassoma lunare | (Linnaeus, 1758) | Thalassoma lunare | Labridae | Moon wrasse |
| Thalassoma lunaris | (Linnaeus, 1758) | Thalassoma lunare | Labridae | Moon wrasse |
| Thalassoma lutescens | (Lay & Bennett, 1839) | Thalassoma lutescens | Labridae | Yellow-brown wrasse |
| Thalassoma mascarenna | Fricke, 1999 | Thalassoma genivittatum | Labridae | Red-cheek wrasse |
| Thalassoma mascarenum | Fricke, 1999 | Thalassoma genivittatum | Labridae | Red-cheek wrasse |
| Thalassoma melanochir | (Bleeker, 1857) | Thalassoma amblycephalum | Labridae | Bluntheaded wrasse |
| Thalassoma melanochir | Fowler, 1904 | Thalassoma amblycephalum | Labridae | Bluntheaded wrasse |
| Thalassoma newtoni | (Osório, 1891) | Thalassoma newtoni | Labridae | |
| Thalassoma nigrofasciatum | Randall, 2003 | Thalassoma nigrofasciatum | Labridae | Blackbarred wrasse |
| Thalassoma nitida | (Günther, 1862) | Thalassoma bifasciatum | Labridae | Bluehead |
| Thalassoma noronhanum | (Boulenger, 1890) | Thalassoma noronhanum | Labridae | Noronha wrasse |
| Thalassoma parvo | (Linnaeus, 1758) | Thalassoma pavo | Labridae | Ornate wrasse |
| Thalassoma pavo | (Linnaeus, 1758) | Thalassoma pavo | Labridae | Ornate wrasse |
| Thalassoma pavo lemniscata | (Lowe, 1843) | Thalassoma pavo | Labridae | Ornate wrasse |
| Thalassoma pavo taeniata | (Lowe, 1841) | Thalassoma pavo | Labridae | Ornate wrasse |
| Thalassoma pavo torquata | (Lowe, 1843) | Thalassoma pavo | Labridae | Ornate wrasse |
| Thalassoma purpurea | (Forsskål, 1775) | Thalassoma purpureum | Labridae | Surge wrasse |
| Thalassoma purpurem | (Forsskål, 1775) | Thalassoma purpureum | Labridae | Surge wrasse |
| Thalassoma purpureum | (Forsskål, 1775) | Thalassoma purpureum | Labridae | Surge wrasse |
| Thalassoma quinquevittata | (Lay & Bennett, 1839) | Thalassoma quinquevittatum | Labridae | Fivestripe wrasse |
| Thalassoma quinquevittatum | (Lay & Bennett, 1839) | Thalassoma quinquevittatum | Labridae | Fivestripe wrasse |
| Thalassoma quinquevittatus | (Lay & Bennett, 1839) | Thalassoma quinquevittatum | Labridae | Fivestripe wrasse |
| Thalassoma quiquivittatum | (Lay & Bennett, 1839) | Thalassoma quinquevittatum | Labridae | Fivestripe wrasse |
| Thalassoma qunquevittatum | (Lay & Bennett, 1839) | Thalassoma quinquevittatum | Labridae | Fivestripe wrasse |
| Thalassoma robertsoni | Allen, 1995 | Thalassoma robertsoni | Labridae | |
| Thalassoma rueppellii | (Klunzinger, 1871) | Thalassoma rueppellii | Labridae | Klunzinger's wrasse |
| Thalassoma sanctaehelenae | (Valenciennes, 1839) | Thalassoma sanctaehelenae | Labridae | St. Helena wrasse |
| Thalassoma schwanefeldi | (Bleeker, 1853) | Thalassoma hardwicke | Labridae | Sixbar wrasse |
| Thalassoma schwanenfeldii | (Bleeker, 1853) | Thalassoma hardwicke | Labridae | Sixbar wrasse |
| Thalassoma schwaneveldi | (Bleeker, 1853) | Thalassoma hardwicke | Labridae | Sixbar wrasse |
| Thalassoma semicaeruleus | (Rüppell, 1835) | Thalassoma purpureum | Labridae | Surge wrasse |
| Thalassoma semicoeruleus | (Rüppell, 1835) | Thalassoma purpureum | Labridae | Surge wrasse |
| Thalassoma septemfasciata | Scott, 1959 | Thalassoma septemfasciatum | Labridae | Seven-banded wrasse |
| Thalassoma septemfasciatum | Scott, 1959 | Thalassoma septemfasciatum | Labridae | Seven-banded wrasse |
| Thalassoma socorroensis | (Hubbs, 1953) | Labrisomus socorroensis | Labrisomidae | Misspelled blenny |
| Thalassoma trilobatum | (Lacepède, 1801) | Thalassoma trilobatum | Labridae | Christmas wrasse |
| Thalassoma umbrostigma | (Rüppell, 1835) | Thalassoma purpureum | Labridae | Surge wrasse |
| Thalassoma umbrostygma | (Rüppell, 1835) | Thalassoma purpureum | Labridae | Surge wrasse |
| Thalassoma unimaculatum | (Lowe, 1841) | Thalassoma pavo | Labridae | Ornate wrasse |
| Thalassoma virens | Gilbert, 1890 | Thalassoma virens | Labridae |