How to Identify Barred Soapfish

To identify Barred Soapfish (Diploprion bifasciatum), look at these key features.

Physical Characteristics

Body shape

compressed

Coloration

The body is predominantly yellow to yellowish-brown, marked by two prominent, broad, dark brown to black vertical bands. The first band runs from the nape through the eye to the operculum, and the second band extends from the anterior dorsal fin base to the anal fin. The fins are typically yellow, often with dark margins or blotches.

Scale type

ctenoid

Mouth position

terminal

Distinctive features

Two prominent dark vertical bands on a yellow body., Large mouth with numerous small, sharp teeth., Thick, leathery skin., Secretes a toxic, bitter-tasting mucus (grammistin) from its skin when stressed.

Dorsal fin

Two dorsal fins, deeply notched or almost separated. The first dorsal fin has 8 spines, and the second dorsal fin has 13-16 soft rays. The spines are robust.

Tail fin

Caudal fin is rounded to truncate.

Pectoral fin

Pectoral fins are relatively large and rounded, with 16-18 rays.

Distinctive fins

Pelvic fins are thoracic, originating below or slightly anterior to the pectoral fin base.

Identification Tips

1. 1

   Coloration and Banding

   The most striking feature is the bright yellow body with two distinct, broad, dark vertical bands. This pattern is highly consistent across individuals.

2. 2

   Dorsal Fin

   The deeply notched or almost separated dorsal fins, with the first dorsal having strong spines, are characteristic.

3. 3

   Body Shape

   Its robust, somewhat compressed body distinguishes it from more slender reef fish.

4. 4

   Behavior

   Often observed hovering near reef structures or slowly patrolling its territory. May appear sluggish until provoked.

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