species: Conus geographus in Lizard Island Field Guide (Lizard Island Field Guide)
Conus geographus

©Lexie Gersbeck and Gabi Howarth: A broken shell of Conus geographus at least 10 cm long from the reef flat and crest between Bird and South Islands, Lizard Island Group.
Kingdom Animalia
Phylum Mollusca
Class Gastropoda
Order Neogastropoda
Family Conidae
Genus Conus
Species Conus geographus



Distinguishing features

Large, thin, cylindrical shell with very wide aperture and brown/white markings. This is a fish-eating snail with venom that is dangerous to humans.


  • Up to 13 cm (length according to Wilson, 1994)



©Atlas of Living Australia: Australian distribution

Web resources


References that assist with identification

  • Wilson, B.R. (1994). Australian Marine Shells: 2. Prosobranch gastropods Odyssey Publishing, Kallaroo, Western Australia.