Specklefin Grouper (species: Epinephelus ongus) in Lizard Island Field Guide (Lizard Island Field Guide)
Epinephelus ongus
Specklefin Grouper

©Lyle Vail: An adult Epinephelus ongus at Cobia Hole, Lizard Island. Length about 25 cm.

©Graham Edgar: Epinephelus ongus at North Point, Lizard Island

©Marianne Dwyer: Juvenile Epinephelus ongus in the Lizard Island lagoon.
Kingdom Animalia
Phylum Chordata
Class Actinopterygii
Order Perciformes
Family Serranidae
Genus Epinephelus
Species Epinephelus ongus
Status least concern



Distinguishing features

Distinguishing features still need to be specified.


  • Up to 45 cm (length according to Allen et al, 2003)
  • Up to 12 cm (juvenile length according to Allen et al, 2003)

Depth range

  • Depth range data is not yet available.



©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

  • Bott, N.J., T.L. Miller and T.H. Cribb (2013). Bucephalidae (Platyhelminthes: Digenea) of Plectropomus (Serranidae: Epinephelinae) in the tropical Pacific. Parasitology Research, 112: 2561-2584. LIRS catalog number 1717.
  • Grutter, A.S. (1997). Effect of the removal of cleaner fish on the abundance and species composition of reef fish, Oecologia, 111: 137-143. LIRS catalog number 504.
  • View all references