How to Identify Barred Flagtail

To identify Barred Flagtail (Kuhlia mugil), look at these key features.

Physical Characteristics

Body shape

compressed

Coloration

Silvery body, often with a darker dorsal surface and lighter ventral side. The most distinguishing feature is the caudal fin, which has 5-7 prominent dark bars or stripes.

Scale type

ctenoid

Mouth position

terminal

Distinctive features

5-7 dark bars on the caudal fin, Silvery body coloration, Large eyes, Forked caudal fin

Dorsal fin

Single dorsal fin, deeply notched, with 10 spines followed by 10-12 soft rays.

Tail fin

Deeply forked caudal fin with 5-7 prominent dark bars.

Pectoral fin

Moderately sized, clear to slightly dusky.

Distinctive fins

The deeply forked caudal fin with its characteristic dark bars is the primary diagnostic feature.

Identification Tips

1. 1

   Caudal Fin Bars

   Count the distinct dark bars on the caudal (tail) fin. Kuhlia mugil typically has 5-7 bars, which is a key differentiator from other Kuhlia species.

2. 2

   Body Coloration

   Observe the overall silvery body color, which can sometimes have a faint yellowish or greenish tint dorsally.

3. 3

   Dorsal Fin

   Note the deeply notched dorsal fin, characteristic of the Kuhliidae family.

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