How to Identify Western Talma

To identify Western Talma (Kyphosus cornelii), look at these key features.

Physical Characteristics

Body shape

compressed

Coloration

Generally silvery-grey to brownish-grey, often with faint longitudinal stripes or rows of spots along the body. Fins are typically darker, sometimes with yellowish tinges. Juveniles may exhibit more pronounced banding.

Scale type

ctenoid

Mouth position

terminal

Distinctive features

Relatively small mouth with incisiform teeth arranged in a single row., Deeply forked caudal fin., Scales extend onto the head and fin bases., Absence of a distinct dark spot at the pectoral fin base, which differentiates it from some other Kyphosus species.

Dorsal fin

Single dorsal fin with 10-11 spines and 12-13 soft rays. The spinous and soft-rayed portions are continuous, with the spinous part being slightly higher.

Tail fin

Deeply forked caudal fin with pointed lobes.

Pectoral fin

Moderately sized pectoral fins.

Distinctive fins

Anal fin with 3 spines and 11-12 soft rays. Pelvic fins are thoracic.

Identification Tips

1. 1

   Body Shape and Coloration

   Look for a robust, oval-shaped body, silvery-grey to brownish-grey coloration, often with subtle longitudinal lines or rows of spots. Maximum length up to 75 cm (30 inches), but commonly observed around 40-50 cm.

2. 2

   Fin Structure

   Note the continuous dorsal fin with 10-11 spines and 12-13 soft rays, and a deeply forked caudal fin. The absence of a dark spot at the pectoral fin base is a key identifier.

3. 3

   Mouth and Teeth

   Observe the relatively small mouth with incisiform (chisel-like) teeth, adapted for grazing algae.

4. 4

   Geographic Location

   Its restricted distribution to Western Australia is a strong indicator for identification.

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