also known as the Seagrass Razorfish or the Blue-throated Wrasse, is a small but colorful marine fish belonging to the family Labridae. These fish are primarily found in seagrass beds and shallow reef flats throughout the Indo-Pacific region, from the Red Sea and East Africa to the western Pacific Ocean, including the Great Barrier Reef.

The Seagrass Wrasse has a slender body shape and can grow up to 10 cm in length. Their body is elongated and streamlined, allowing them to dart quickly and easily through the water. They have a pointed snout and small mouth, with sharp teeth adapted for feeding on small invertebrates and plankton. The dorsal fin of the Seagrass Wrasse has six spines followed by nine soft rays, and their anal fin has three spines followed by eight soft rays.

The coloration of the Seagrass Wrasse is vibrant and eye-catching. Males have a bright blue throat, yellow-green upper body, and white belly, while females are more muted with a brownish-green coloration. Both sexes have a horizontal blue stripe running along the length of their body, and their fins are marked with blue and yellow stripes.

Seagrass Wrasse are known for their social behavior, and they are often found in large groups of up to 20 individuals. They are diurnal, meaning they are active during the day, and spend most of their time swimming around the seagrass beds or reef flats in search of food. During the breeding season, males will display their bright blue throat to attract females and defend their territory.

Seagrass Wrasse play an important role in the ecology of seagrass beds and reef flats. They feed on small invertebrates and plankton, helping to control their populations, and they serve as prey for larger fish and marine mammals. However, like many marine species, Seagrass Wrasse are threatened by habitat destruction, pollution, and overfishing.

In conclusion, the Seagrass Wrasse is a colorful and social fish that is found in seagrass beds and reef flats throughout the Indo-Pacific region. They have a slender body shape, vibrant coloration, and are known for their social behavior. However, they are also threatened by human activities and their survival is dependent on conservation efforts.