How to Identify Silver Drummer

To identify Silver Drummer (Kyphosus sydneyanus), look at these key features.

Physical Characteristics

Body shape

compressed

Coloration

Generally silvery-grey to silvery-blue on the flanks, often darker dorsally, sometimes with faint longitudinal stripes or spots. Fins are typically dusky.

Scale type

ctenoid

Mouth position

terminal

Distinctive features

Deep, compressed body, Small mouth with incisiform teeth, Continuous dorsal fin with a spiny and soft-rayed portion, Large, ctenoid scales, Relatively small eyes

Dorsal fin

Single, continuous dorsal fin with 10-11 spines and 11-12 soft rays. The spiny portion is typically longer than the soft-rayed portion.

Tail fin

Moderately forked caudal fin.

Pectoral fin

Relatively small pectoral fins.

Distinctive fins

Anal fin with 3 spines and 10-11 soft rays. Pelvic fins are thoracic.

Identification Tips

1. 1

   Body Shape and Coloration

   Look for a deep, compressed, silvery-grey body. The overall robust appearance and often darker dorsal surface are key.

2. 2

   Mouth and Teeth

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

3. 3

   Fin Count

   Count the dorsal fin spines (10-11) and soft rays (11-12), and anal fin spines (3) and soft rays (10-11) for definitive identification.

4. 4

   Habitat

   Its presence in temperate Australian rocky reef environments is a strong indicator.

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