Eastern Talma

Chelmonops truncatus

Summary 2

Chelmonops truncatus, the eastern talma or truncate coralfish, is a species of marine ray-finned fish, a butterflyfish from the family Chaetodontidae. It is endemic to Australia.

Description 2

Chelmonops truncatus bears a close resemblance to the Western talma (C. curiosus), the main difference being that the dorsal fin is truncated, compared to the long filament present on the western species. The fins and dark bands on the body are often tinged vinaceous, giving them a dark, red appearance in some light. Like other butterflyfishes the juveniles have an obvious ocellus on the dorsal fin, but this smudges and becomes less obvious as the fish matures. The smooth profile of the rear part of the dorsal fin is more obvious in younger fish, and this part of the fin becomes slightly elongated in adults. The rear margin of the soft dorsal and anal fins is almost vertical in adults, the fins are more rounded in juveniles. This species attains a maximum total length of 22 centimetres (8.7 in).

Sources and Credits

  1. (c) John Sear, some rights reserved (CC BY-NC), uploaded by John Sear
  2. (c) Wikipedia, some rights reserved (CC BY-SA), https://en.wikipedia.org/wiki/Chelmonops_truncatus

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