Oneline Cardinalfish (species: Pristiapogon exostigma) in Lizard Island Field Guide (Lizard Island Field Guide)
Pristiapogon exostigma
Oneline Cardinalfish

©Anne Hoggett: Pristiapogon exostigma 7 to 8 cm long at night, Horseshoe Reef, Lizard Island. Note spot on tail base is above the midline.

©Anne Hoggett: Pristiapogon exostigma at night, Big Vicki's Reef, Lizard Island.

©Anne Hoggett: Pristiapogon exostigma on the reef flat on eastern side of Lizard Island at night. This individual is darker and bluer than most and the peduncle spot is larger.
Kingdom Animalia
Phylum Chordata
Class Actinopterygii
Order Perciformes
Family Apogonidae
Genus Pristiapogon
Species Pristiapogon exostigma



Distinguishing features

Dark leading edge of first dorsal fin, tapering stripe along body passing through eye, black spot on caudal peduncle above midline.


  • Up to 11 cm (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

  • Barnett, A. (2004). The trophic and reproductive implications of mouthbrooding in apogonid fishes, Honours thesis, James Cook University. LIRS catalog number 946.
  • Barnett, A. and D.R. Bellwood (2005). Sexual dimorphism in the buccal cavity of paternal mouthbrooding cardinalfishes (Pisces: Apogonidae), Marine Biology, 148: 205-212. LIRS catalog number 1021.
  • View all references