Johnston Damsel (species: Plectroglyphidodon johnstonianus) in taxonomy (Lizard Island Field Guide)
Plectroglyphidodon johnstonianus
Johnston Damsel

©Lyle Vail: Plectroglyphidodon johnstonianus on the outer slope of Day Reef near Lizard Island.

©Anne Hoggett: Plectroglyphidodon johnstonianus on the outer slope of Yonge Reef near Lizard Island.

©Renato Morais: Juvenile Plectroglyphidodon johnstonianus on the NE side of Lizard Island.
Kingdom Animalia
Phylum Chordata
Class Actinopterygii
Order Perciformes
Family Pomacentridae
Genus Plectroglyphidodon
Species Plectroglyphidodon johnstonianus



Distinguishing features

A small yellow fish with a broad dark bar on rear body, blue eye and blue/purple lines on face. Allen et al (2003) note that a rare variation that lacks the dark bar can be found among normal populations.


  • Up to 9 cm (length according to Allen et al, 2003)

Depth range

  • From 2 m to 12 m



©Atlas of Living Australia: Australian distribution

Web resources


References that assist with identification

  • Allen, G., R. Steene, P. Humann and N. Deloach (2003). Reef fish identification: Tropical Pacific New World Publications Inc., Jacksonville, FL, USA.

Other references

  • Casey, J.M., J.H. Choat and S.R. Connolly (2014). Coupled dynamics of territorial damselfishes and juvenile corals on the reef crest, Coral Reefs, doi 10.1007/s00338-014-1221-7. LIRS catalog number 1845.
  • Elliott, J.P. and D.R. Bellwood (2003). Alimentary tract morphology and diet in three coral reef fish families, Journal of Fish Biology, 63: 1598-1609. LIRS catalog number 876.