How to Identify Greater Lizardfish

To identify Greater Lizardfish (Saurida tumbil), look at these key features.

Physical Characteristics

Body shape

elongated

Coloration

Dorsal surface is typically brownish or grayish, fading to silvery-white on the ventral side. Often exhibits faint, irregular dark blotches or bars along the flanks, which can be more pronounced in some individuals. Fins are generally translucent or dusky.

Scale type

cycloid

Mouth position

terminal

Distinctive features

Elongated, cylindrical body, somewhat compressed posteriorly., Large, broad head with a very large mouth extending well beyond the posterior margin of the eye., Numerous sharp, needle-like teeth, visible even when the mouth is closed., Adipose fin present, small and located posterior to the dorsal fin., Pectoral fins relatively short, not reaching the origin of the dorsal fin., Pelvic fins large, located abdominally, with 8 rays, the inner rays being longer than the outer ones., Lateral line prominent and straight.

Dorsal fin

Single dorsal fin with 10-12 soft rays. Adipose fin present.

Tail fin

Forked caudal fin.

Pectoral fin

Short, with 13-15 rays, not reaching the dorsal fin origin.

Distinctive fins

Pelvic fins are large, with 8 rays, and the inner rays are notably longer than the outer rays. This is a key diagnostic feature for the genus Saurida.

Identification Tips

1. 1

   Mouth size and teeth

   The mouth is very large, extending well past the eye, and filled with numerous sharp, visible teeth.

2. 2

   Pelvic fin structure

   The pelvic fins have 8 rays, with the inner rays being distinctly longer than the outer rays. This is a crucial distinguishing characteristic from other lizardfish genera.

3. 3

   Body shape and coloration

   Elongated, cylindrical body with a brownish-gray dorsal side and silvery-white belly, often with faint dark blotches.

4. 4

   Adipose fin

   Presence of a small, fleshy adipose fin posterior to the dorsal fin.

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