How to Identify Red Morwong

To identify Red Morwong (Cheilodactylus fuscus), look at these key features.

Physical Characteristics

Body shape

compressed

Coloration

Adults typically display a reddish-brown to purplish-red body, often with irregular darker bands or mottling, particularly on the upper flanks. The fins are usually reddish, and the belly can be paler. Juveniles may have more pronounced banding.

Scale type

ctenoid

Mouth position

terminal

Distinctive features

Thick, fleshy lips, Elongated third to fifth dorsal fin spines in adults, Large, ctenoid scales, Deep body, laterally compressed

Dorsal fin

Single dorsal fin with 17-18 spines and 27-30 soft rays. The third to fifth spines are notably elongated in adults.

Tail fin

Slightly forked caudal fin.

Pectoral fin

Large, rounded pectoral fins with 14-15 rays, the lower rays often thickened and free.

Distinctive fins

Anal fin with 3 spines and 8-9 soft rays. Pelvic fins thoracic.

Identification Tips

1. 1

   Coloration

   Look for the characteristic reddish-brown to purplish-red body color, often with darker blotches or bands.

2. 2

   Dorsal Fin Spines

   Observe the elongated third to fifth dorsal fin spines, a key identifier for adult specimens.

3. 3

   Lips

   Note the thick, fleshy lips, which are typical of morwongs.

4. 4

   Body Shape

   Its deep, laterally compressed body distinguishes it from more elongated reef fish.

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