How to Identify Yellow Tang

To identify Yellow Tang (Zebrasoma flavescens), look at these key features.

Physical Characteristics

Body shape

compressed

Coloration

Uniformly bright yellow, though some individuals may exhibit a brownish tinge at night or when stressed. Juveniles are also bright yellow.

Scale type

ctenoid

Mouth position

terminal

Distinctive features

Laterally compressed, disc-shaped body, Elongated snout, Sharp, retractable scalpel-like spine on each side of the caudal peduncle, Small, brush-like teeth adapted for grazing algae

Dorsal fin

Single, long dorsal fin with 4-5 spines and 23-25 soft rays, extending almost the entire length of the back.

Tail fin

Lunate (crescent-shaped) caudal fin.

Pectoral fin

Large, fan-like pectoral fins.

Distinctive fins

Anal fin with 3 spines and 19-21 soft rays. Pelvic fins with 1 spine and 5 soft rays. All fins are yellow, matching the body coloration.

Identification Tips

1. 1

   Coloration

   Its uniform, brilliant yellow color is the most distinguishing feature. No stripes, spots, or other markings are typically present on the body.

2. 2

   Body Shape

   The highly compressed, disc-like body with an elongated snout is characteristic of the genus Zebrasoma.

3. 3

   Caudal Spine

   The presence of a sharp, retractable spine on each side of the caudal peduncle (base of the tail) confirms it as a surgeonfish. This spine is typically white or pale in Z. flavescens.

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