How to Identify Smooth Sand Lance

To identify Smooth Sand Lance (Ammodytes tobianus), look at these key features.

Physical Characteristics

Body shape

eel-like

Coloration

Dorsal side greenish-brown to olive, flanks silvery, ventral side white. Often iridescent.

Scale type

cycloid

Mouth position

superior

Distinctive features

Extremely elongated and slender body, almost cylindrical., Pointed, conical snout with a protruding lower jaw., Absence of pelvic fins., Lateral line runs high along the body., Small, cycloid scales are present but often difficult to see, giving a 'smooth' appearance.

Dorsal fin

Long, low dorsal fin extending from behind the pectoral fin almost to the caudal fin, with 54-61 soft rays. No spines.

Tail fin

Forked caudal fin.

Pectoral fin

Small, located low on the body.

Distinctive fins

Anal fin is also long and low, with 28-33 soft rays, originating behind the midpoint of the dorsal fin. No adipose fin.

Identification Tips

1. 1

   Body Shape

   Look for a very slender, elongated, almost snake-like body. This is a primary distinguishing feature from most other small fish.

2. 2

   Snout and Jaw

   Observe the pointed snout and the distinctly protruding lower jaw, which gives the mouth an upward-pointing appearance.

3. 3

   Absence of Pelvic Fins

   Crucially, check for the complete absence of pelvic fins. This is a definitive characteristic of Ammodytidae.

4. 4

   Lateral Line

   Note the lateral line running high along the body, rather than centrally.

5. 5

   Burrowing Behavior

   In their natural habitat, their rapid burrowing into sand when disturbed is a strong indicator.

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