How to Identify Yellowtail Barracuda

To identify Yellowtail Barracuda (Sphyraena flavicauda), look at these key features.

Physical Characteristics

Body shape

torpedo

Coloration

Dorsal side is typically dark grey to greenish-brown, fading to silvery-white on the flanks and belly. Often exhibits a series of faint, dark vertical bars or blotches along the sides, which can be more prominent in juveniles or when stressed. The most distinguishing feature is the bright yellow caudal (tail) fin, which can sometimes have dusky margins. Pectoral and pelvic fins are usually translucent or pale.

Scale type

cycloid

Mouth position

superior

Distinctive features

Elongated, cylindrical body, Large, pointed head with a prominent lower jaw, Two widely separated dorsal fins, Bright yellow caudal fin, Sharp, conical teeth of varying sizes

Dorsal fin

Two dorsal fins; the first dorsal fin has 5 strong spines, and the second dorsal fin has 1 spine and 9 soft rays. The two fins are widely separated.

Tail fin

Caudal fin is distinctly forked and bright yellow, often with dusky tips.

Pectoral fin

Pectoral fins are relatively small and located low on the body, with 13-15 rays.

Distinctive fins

Pelvic fins are small, abdominal in position, with 1 spine and 5 soft rays. Anal fin has 2 spines and 8-9 soft rays.

Identification Tips

1. 1

   Caudal Fin Color

   The most reliable identifier is the bright yellow caudal (tail) fin, which contrasts sharply with the silvery body.

2. 2

   Body Markings

   Look for faint, dark vertical bars or blotches on the upper flanks, though these can be indistinct or absent in some individuals.

3. 3

   Dorsal Fins

   Note the two widely separated dorsal fins, a characteristic barracuda feature.

4. 4

   Size

   This species typically reaches a maximum length of about 60 cm (24 inches), distinguishing it from much larger barracuda species.

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