Moon wrasse (Thalassoma lunare)
General data
- Main name: Moon wrasse
- Local names: Lyretail wrasse, Crescent wrasse, Blue wrasse
- Climates: Tropical
- Habitat: Saltwater
- Native: Africa, Asia, Australia & Oceania
- Distribution: Indian ocean, Pacific Ocean
Classification
- Genus: Thalassoma - Thalassoma
- Family: Labridae - Wrasses
- Order: Labriformes - Wrasses
- Class: Actinopteri - Ray-finned fishes
- Superclass: Osteichthyes - Bony fishes
Description
The moon wrasse (Thalassoma lunare), also known as the crescent wrasse or lyretail wrasse, is a species of wrasse native to the Indian Ocean and the western Pacific Ocean.
It is an inhabitant of coral reefs and surrounding areas at depths from 1 to 20 m (3.3 to 65.6 ft).
Moon wrasses are carnivorous and tend to prey on fish eggs and small sea-floor dwelling invertebrates.
This species can reach 45 cm (18 in) in total length.
The juvenile is blue on the lower half of its body, with a black spot in the middle of the dorsal fin and a black blotch on the caudal fin base. As it matures, the spot turns into a yellow crescent, hence the name. The body is green, with prominently marked scales. Coloration of the head ranges from blue to magenta, with a broken checkerboard pattern.