How to Identify Barred Thicklip

To identify Barred Thicklip (Hemigymnus fasciatus), look at these key features.

Physical Characteristics

Body shape

compressed

Coloration

Adults typically display a striking pattern of 5-6 broad, dark vertical bands (ranging from dark brown to black) alternating with narrower, pale bands (white to yellowish) on a greenish-white to yellowish body. The head is often greenish-brown with irregular darker markings. Juveniles are generally paler with less distinct banding. The thick, fleshy lips are a prominent feature, often appearing pale or yellowish.

Scale type

cycloid

Mouth position

terminal

Distinctive features

Thick, fleshy lips, 5-6 prominent dark vertical bands on the body, Large size for a wrasse, Protrusible mouth with conical teeth

Dorsal fin

9 spines, 10-11 soft rays; continuous

Tail fin

Rounded to slightly truncate

Pectoral fin

14-15 rays; relatively large

Distinctive fins

Pelvic fins are relatively short.

Identification Tips

1. 1

   Body Pattern

   Look for the characteristic 5-6 broad, dark vertical bands alternating with pale bands. This is the most distinguishing feature.

2. 2

   Lips

   Observe the exceptionally thick, fleshy lips, which are a defining characteristic of the genus Hemigymnus.

3. 3

   Size

   Adults are relatively large for a wrasse, reaching up to 50 cm in total length.

4. 4

   Head Coloration

   Note the greenish-brown head with irregular darker markings, contrasting with the banded body.

Explore Barred Thicklip