Tag: Blueback Damselfish (Pomacentrus simsiang)

This section has been created for a species of Damselfish i first spotted at "Twins" dive site, Koh Tao.

It resembles many of the juveniles of other species, however its size suggests it is an adult.

The closest match i could find for this species is the Blueback Damselfish (Pomacentrus simsiang), which grows to around 10cm in length and is distinguished by its yellow colouration, fading to deep blue along the upper head and back with pale spots and lines on the forehead, gill cover and cheek areas.

All of these characteristics appear to match the species in the photograph.

This section has been created for a species of Damselfish i first spotted at "Twins" dive site, Koh Tao.

It resembles many of the juveniles of other species, however its size suggests it is an adult.

The closest match i could find for this species is the Blueback Damselfish (Pomacentrus simsiang), which grows to around 10cm in length and is distinguished by its yellow colouration, fading to deep blue along the upper head and back with pale spots and lines on the forehead, gill cover and cheek areas.

All of these characteristics appear to match the species in the photograph.

Alan's picture
Blueback Damsel (Pomacentrus Simsiang)

This photo shows the relative size of the individual compared to the Yellowtail Tubelip Wrasse (Diproctacanthus Santhurus). This suggests it is an adult of some species and so far, the Blueback Damselfish (Pomacentrus Simsiang) has been the most likely match.