Animal Species:Threadfin Emperor, Lethrinus genivittatus Valenciennes, 1830

The Threadfin Emperor's second dorsal fin spine is longer than the other dorsal spines. The fish is normally light brown to greenish above and pale below often with 2 or 3 brown lines.  The sides have oblique brownish bars and a square black blotch above the pectoral fin.

Threadfin Emperor caught off Broughton Island

Hugo Simpson © Hugo Simpson

Standard Common Name

Threadfin Emperor

Alternative Name/s

Lance Emperor, Lancer, Longspine Emperor

Size range

The species grows to about 25 cm in length.

Distribution

The Threadfin Emperor occurs primarily in tropical waters of the east-Indo-west Pacific region.

The map below shows the Australian distribution of the species based on public sightings and specimens in Australian Museums. Click on the map for detailed information.  Source: Atlas of Living Australia.

Lethrinus genivittatus

Habitat

It lives in sandy or rocky areas and in seagrass beds. The species is known from estuarine and inshore areas.

Classification

Species:
genivittatus
Genus:
Lethrinus
Family:
Lethrinidae
Order:
Perciformes
Class:
Actinopterygii
Subphylum:
Vertebrata
Phylum:
Chordata
Kingdom:
Animalia

What does this mean?

References

  1. Hoese, D.F., Bray, D.J., Paxton, J.R. & G.R. Allen. 2006. Fishes. In Beesley, P.L. & A. Wells. (eds) Zoological Catalogue of Australia. Volume 35. ABRS & CSIRO Publishing: Australia. parts 1-3, pages 1-2178.
  2. Randall, J.E., Allen, G.R. & R.C. Steene. 1997. Fishes of the Great Barrier Reef and Coral Sea. Crawford House Press. Pp. 557.


Mark McGrouther , Collection Manager, Ichthyology
Last Updated:

Tags Threadfin Emperor, Lethrinus genivittatus, Lethrinidae, fishes, ichthyology, long spine, green, brown, white, bars, oblique, marine, sand, rock, reef, estuarine, inshore, NSW,