species: Pterelectroma physoides in Lizard Island area: all known taxa (Lizard Island Field Guide)
Pterelectroma physoides

©Lyle Vail: Pterelectroma physoides about 2 cm long in the Lizard Island lagoon entrance channel.
Kingdom Animalia
Phylum Mollusca
Class Bivalvia
Order Pterioida
Family Pteriidae
Genus Pterelectroma
Species Pterelectroma physoides



Distinguishing features

A small, delicate bivalve with a short "wing" that associates with hydroids; white with narrow, dark brown, oblique stripes in a pattern as shown.


  • Up to 2 cm (length according to Edgar, 2019)



©Atlas of Living Australia: Australian distribution

Web resources


References that assist with identification

  • Edgar, G. (2019). Tropical Marine Life of Australia New Holland Publishers, London.