How to Identify Ladyfish

To identify Ladyfish (Elops saurus), look at these key features.

Physical Characteristics

Body shape

torpedo

Coloration

Silvery body, often with a darker greenish-blue dorsal surface fading to bright silver on the sides and belly. Fins are typically translucent or dusky.

Scale type

cycloid

Mouth position

terminal

Distinctive features

Elongated, cylindrical body, Large, terminal mouth with small, sharp teeth, Large eyes, Single dorsal fin located far back on the body, almost directly above the anal fin, Forked caudal fin, Absence of a lateral line on the head, Presence of a gular plate (a bony plate between the lower jaws), though less prominent than in tarpon

Dorsal fin

Single, short-based dorsal fin positioned posteriorly, with 20-25 soft rays.

Tail fin

Deeply forked caudal fin, powerful and symmetrical.

Pectoral fin

Small, low-set pectoral fins.

Distinctive fins

Pelvic fins are abdominal, located well behind the pectoral fins. Anal fin is similar in shape and size to the dorsal fin, with 13-17 soft rays.

Identification Tips

1. 1

   Body Shape

   Look for a very slender, elongated, and cylindrical body, distinctly torpedo-shaped.

2. 2

   Coloration

   Observe the bright, uniform silvery color, often with a darker back.

3. 3

   Fin Placement

   Note the dorsal and anal fins are positioned far back on the body, almost directly opposite each other.

4. 4

   Mouth

   Identify the large, terminal mouth with a slightly underslung lower jaw and small, sharp teeth.

5. 5

   Gular Plate

   While present, it is less prominent than in tarpon. The absence of large, reflective scales on the head (unlike tarpon) is also a key differentiator.

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