Sicklefin Lemon Shark (species: Negaprion acutidens) in Lizard Island Field Guide (Lizard Island Field Guide)
Negaprion acutidens
Sicklefin Lemon Shark

©Vanessa Messmer: Negaprion acutidens with a Sharksucker at Watson's Bay, Lizard Island.

©Vanessa Messmer: Negaprion acutidens with two Sharksuckers at Watson's Bay, Lizard Island.

©Anne Hoggett: One of three Negaprion acutidens at Loomis Reef, Lizard Island, in Aug 2018.
Kingdom Animalia
Phylum Chordata
Class Elasmobranchii
Order Carcharhiniformes
Family Carcharhinidae
Genus Negaprion
Species Negaprion acutidens



Distinguishing features

A large yellowish shark with the second dorsal fin almost as large as the first, which is set well behind the pectoral fins. Pectoral fins broad. Anal fins almost as large as second dorsal fin. (From Last and Stevens, 2009).


  • Size data has not been obtained.

Depth range

  • Depth range data is not yet available.



©Atlas of Living Australia: Australian distribution


A slow swimming shark that feeds on rays and fishes. Bears live young. Dangerous if provoked.

Web resources


  • Frisch, A.J., M. Ireland, J.R. Rizzari, O.M. Lonnstedt, K.A. Magnenat, C.E. Mirbach and J.-P.A. Hobbs (2016). Reassessing the trophic role of reef sharks as apex predators on coral reefs. Coral Reefs, 35: 459-472. LIRS catalog number 1981.
  • Last, P.R. and J.D. Stevens (2009). Sharks and Rays of Australia.: 2nd Edition CSIRO Publishing, Australia.