How to Identify Harlequin Tuskfish

To identify Harlequin Tuskfish (Choerodon fasciatus), look at these key features.

Physical Characteristics

Body shape

compressed

Coloration

Adults display a brilliant and complex pattern of alternating broad, vertical bands of bright orange or reddish-orange and white or pale blue. The head is typically blue-green with intricate orange markings around the eyes and mouth. The fins are often edged in blue. Juveniles have a more subdued coloration, often with fewer, less distinct bands and a more yellowish hue.

Scale type

ctenoid

Mouth position

terminal

Distinctive features

Four prominent, tusk-like canine teeth protruding from the front of both the upper and lower jaws, giving them their common name., Vibrant, contrasting vertical banding pattern., Robust, deep body., Large, thick lips.

Dorsal fin

Single dorsal fin with 12 spines and 8 soft rays. The spiny portion is longer than the soft-rayed portion.

Tail fin

Truncate to slightly rounded caudal fin.

Pectoral fin

Large, rounded pectoral fins.

Distinctive fins

Pelvic fins are relatively small. All fins are typically edged in blue or purple.

Identification Tips

1. 1

   Coloration and Pattern

   The most definitive feature is the striking pattern of broad, alternating orange/red and white/blue vertical bands across the body. No other wrasse species shares this exact pattern.

2. 2

   Tusk-like Teeth

   Observe the prominent, protruding canine teeth at the front of the mouth. These are clearly visible even when the mouth is closed.

3. 3

   Body Shape

   Its deep, compressed body and relatively large head are characteristic of the Choerodon genus.

4. 4

   Fin Edges

   The blue or purple edging on the fins is a consistent feature in adults.

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