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Bluehead Wrasse (Thalassoma grammaticum)

Photo of Bluehead Wrasse (Thalassoma grammaticum)

Key facts

Scientific name
Thalassoma grammaticum
Common name
Bluehead Wrasse
Category
Fish
Family
Labridae
Genus
Thalassoma
Size
9–15 cm
Depth
2–25 m
IUCN status
Least concern (LC)
Danger level
Harmless
Habitats
coral-reef, rocky-reef
Behaviours
benthic, diurnal
Ocean zones
Caribbean, Eastern Pacific

Description

Thalassoma grammaticum reaches 15 cm. Wrasse (Labridae) endemic to East Pacific. Orange-yellow body, geometric blue patterns and blue stripe below eye. Benthic herbivore-detritivore. Rocky and coral reefs 2-25 m. Permanent territory. Very active by day, hides at night. No threats = LC. Highly observable, beloved by divers for its patterns.

Photo of Bluehead Wrasse

Photo of Bluehead Wrasse (Thalassoma grammaticum)Photo of Bluehead Wrasse (Thalassoma grammaticum)

Frequently asked questions

How big is the Bluehead Wrasse?
Bluehead Wrasse (Thalassoma grammaticum) reaches 9–15 cm in length.
At what depth can you find the Bluehead Wrasse?
Bluehead Wrasse is found between 2–25 m deep.
Is the Bluehead Wrasse dangerous to divers?
Danger level: Harmless.
What is the conservation status of the Bluehead Wrasse?
IUCN status: Least concern (LC).
Where can you find the Bluehead Wrasse?
Found in: Caribbean, Eastern Pacific.

Other species in the genus Thalassoma

  • Thalassoma pavo - Ornate wrasse
  • Thalassoma bifasciatum - Bluehead wrasse
  • Thalassoma lunare - Moon wrasse
  • Thalassoma lucasanum - Cortez rainbow wrasse
  • Thalassoma newtoni - Newton's wrasse
  • Thalassoma lutescens - Rainbow Wrasse

Other species in the family Labridae

  • Cheilinus undulatus - Humphead wrasse
  • Labrus bergylta - Ballan Wrasse
  • Sparisoma cretense - Mediterranean parrotfish
  • Symphodus mediterraneus - Axillary wrasse
  • Symphodus rostratus - Pointed-snout wrasse
  • Symphodus ocellatus - Ocellated wrasse

Sources

  • Taxonomy: WoRMS (AphiaID 273580)
  • Photos: iNaturalist (CC BY-NC)
  • Distribution: GBIF (taxonKey 2384534)
  • Conservation: IUCN Red List
  • Encyclopedia: Wikipedia