species: Lambis truncata in Lizard Island area: all known taxa (Lizard Island Field Guide)
Lambis truncata

©Anne Hoggett: Lambis truncataat Lizard Island. Shell length about 28 cm.

©Anne Hoggett: Two individuals of Lambis truncata at Lizard Island, about 28 cm long.

©Lexie Gersbeck and Gabi Howarth: Lambis truncata about 31 cm long from Lizard Island area.
Kingdom Animalia
Phylum Mollusca
Class Gastropoda
Order Littorinimorpha
Family Strombidae
Genus Lambis
Species Lambis truncata



Distinguishing features

This is the largest and heaviest spider shell, growing to at least 35 cm long. The outer lip of the shell is very thick and the aperture is smooth, white inside becoming darker at the edge. Found on rubble in shallow water.


  • Up to 35 cm (Shell length)



©Atlas of Living Australia: Australian distribution

Web resources


References that assist with identification

  • Wilson, B. (1993). Australian Marine Shells: 1. Prosobranch gastropods Odyssey Publishing, Kallaroo, Western Australia.