species: Pericelis sp. in Lizard Island Field Guide (Lizard Island Field Guide)
Pericelis sp.

©Anne Hoggett: Unidentified pericelidid flatworm on underside of rubble slab near sandspit at Palfrey Island, Lizard Island Group. 6 cm.
Kingdom Animalia
Phylum Platyhelminthes
Class Rhabditophora
Order Polycladida
Family Pericelidae
Genus Pericelis
Species Pericelis sp.

Distinguishing features

Translucent grey with opaque white midline, covered all over with brown mesh pattern that outlines large spots. Quite fast-moving.


  • Size data has not been obtained.



Web resources


References that assist with identification

  • Newman, L.J. and L.R.G. Cannon (2003). Marine flatworms: The world of polyclads CSIRO Publishing, Collingwood, Vic.
  • Ryanskiy, A. (2021). Marine Flatworms of the Tropical Indo-Pacific. Reef Id Books.