How to Identify Sand Tilefish

To identify Sand Tilefish (Malacanthus plumieri), look at these key features.

Physical Characteristics

Body shape

elongated

Coloration

The body is typically pale blue to greenish-gray dorsally, fading to white or silvery ventrally. A prominent yellow stripe often runs from the snout, through the eye, and along the upper flank, sometimes extending to the caudal fin. The dorsal and anal fins are often edged with yellow or blue. The caudal fin is typically emarginate to slightly lunate, with elongated upper and lower rays, and can have a yellowish hue.

Scale type

ctenoid

Mouth position

terminal

Distinctive features

Elongated, cylindrical body, Long dorsal and anal fins, Emarginate to slightly lunate caudal fin with elongated upper and lower rays, Yellow stripe from snout through eye along flank, Large, terminal mouth

Dorsal fin

Single, long dorsal fin with 4-5 spines and 54-60 soft rays, extending almost the entire length of the back.

Tail fin

Emarginate to slightly lunate, with the upper and lower rays often elongated into filaments.

Pectoral fin

Relatively small and rounded, with 16-17 rays.

Distinctive fins

The dorsal and anal fins are notably long and continuous, almost mirroring each other in shape and length. The caudal fin's elongated outer rays are a key identifier.

Identification Tips

1. 1

   Body Shape and Coloration

   Look for the elongated, cylindrical body, pale blue-green to silvery coloration, and the distinctive yellow stripe running from the snout to the caudal fin.

2. 2

   Fin Morphology

   Note the very long dorsal and anal fins, and the emarginate to slightly lunate caudal fin with elongated upper and lower rays.

3. 3

   Habitat and Behavior

   Observe its behavior on sandy or rubble bottoms; it will often be seen near the entrance of its burrow, into which it quickly retreats when threatened.

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